®
RCV420
1
RCV420
Precision 4mA to 20mA
CURRENT LOOP RECEIVER
APPLICATIONS
●PROCESS CONTROL
●INDUSTRIAL CONTROL
●FACTORY AUTOMATION
●DATA ACQUISITION
●SCADA
●RTUs
●ESD
●MACHINE MONITORING
FEATURES
●COMPLETE 4-20mA TO 0-5V CONVERSION
●INTERNAL SENSE RESISTORS
●PRECISION 10V REFERENCE
●BUILT-IN LEVEL-SHIFTING
●±40V COMMON-MODE INPUT RANGE
●0.1% OVERALL CONVERSION ACCURACY
●HIGH NOISE IMMUNITY: 86dB CMR
transmitter compliance voltage is at a premium. The
10V reference provides a precise 10V output with a
typical drift of 5ppm/°C.
The RCV420 is completely self-contained and offers a
highly versatile function. No adjustments are needed
for gain, offset, or CMR. This provides three important
advantages over discrete, board-level designs: 1) lower
initial design cost, 2) lower manufacturing cost, and
3) easy, cost-effective field repair of a precision circuit.
DESCRIPTION
The RCV420 is a precision current-loop receiver de-
signed to convert a 4–20mA input signal into a 0–5V
output signal. As a monolithic circuit, it offers high
reliability at low cost. The circuit consists of a pre-
mium grade operational amplifier, an on-chip precision
resistor network, and a precision 10V reference. The
RCV420 features 0.1% overall conversion accuracy,
86dB CMR, and ±40V common-mode input range.
The circuit introduces only a 1.5V drop at full scale,
which is useful in loops containing extra instrument
burdens or in intrinsically safe applications where
®
R
S
75Ω
R
S
75Ω
1
2
3
–In
16 4 12
V+ V– Ref In
C
T
+In 100kΩ
RCV420
1.01kΩ
99kΩ11.5kΩ
300kΩ
300kΩ
+10V
Ref
15
14
11
10
8
7
Rcv f
B
Rcv Out
Ref Out
Ref f
B
Ref Trim
Ref Noise Reduction
13 5
Rcv
Com Ref
Com
92kΩ
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
RCV420
©1988 Burr-Brown Corporation PDS-837E Printed in U.S.A. October, 1997
SBVS019
2
®
RCV420
SPECIFICATIONS
ELECTRICAL
At T = +25°C and VS = ±15V, unless otherwise noted.
RCV420KP, JP
CHARACTERISTICS MIN TYP MAX UNITS
GAIN
Initial 0.3125 V/mA
Error 0.05 0.15 % of span
Error—JP Grade 0.25 % of span
vs Temp 15 ppm/°C
Nonlinearity(1) 0.0002 0.002 % of span
OUTPUT
Rated Voltage (IO = +10mA, –5mA) 10 12 V
Rated Current (EO = 10V) +10, –5 mA
Impedance (Differential) 0.01 Ω
Current Limit (To Common) +49, –13 mA
Capacitive Load 1000 pF
(Stable Operation)
INPUT
Sense Resistance 74.25 75 75.75 Ω
Input Impedance (Common-Mode) 200 kΩ
Common-Mode Voltage ±40 V
CMR(2) 70 80 dB
vs Temp (DC) (TA = TMIN to TMAX)76dB
AC 60Hz 80 dB
OFFSET VOLTAGE (RTO)(3)
Initial 1mV
vs Temp 10 µV/°C
vs Supply (±11.4V to ±18V) 74 90 dB
vs Time 200 µV/mo
ZERO ERROR(4)
Initial 0.025 0.075 % of span
Initial—JP Grade 0.15 % of span
vs Temp 10 ppm of
span/°C
OUTPUT NOISE VOLTAGE
fB = 0.1Hz to 10Hz 50 µVp-p
fO = 10kHz 800 nV/√Hz
DYNAMIC RESPONSE
Gain Bandwidth 150 kHz
Full Power Bandwidth 30 kHz
Slew Rate 1.5 V/µs
Settling Time (0.01%) 10 µs
VOLTAGE REFERENCE
Initial 9.99 10.01 V
Trim Range(5) ±4%
vs Temp 5 ppm/°C
vs Supply (±11.4V to ±18V) 0.0002 %/V
vs Output Current (IO = 0 to +10mA) 0.0002 %/mA
vs Time 15 ppm/kHz
Noise (0.1Hz to 10Hz) 5 µVp-p
Output Current +10, –2 mA
POWER SUPPLY
Rated ±15 V
Voltage Range(6) –5, +11.4 ±18 V
Quiescent Current (VO = 0V) 3 4 mA
TEMPERATURE RANGE
Specification 0 +70 °C
Operation –25 +85 °C
Storage –40 +85 °C
Thermal Resistance,
θ
JA 80 °C/W
NOTES: (1) Nonlinearity is the max peak deviation from best fit straight line. (2) With 0 source impedance on Rcv Com pin. (3) Referred to output with all inputs
grounded including Ref In. (4) With 4mA input signal and Voltage Reference connected (includes VOS, Gain Error, and Voltage Reference Errors). (5) External trim
slightly affects drift. (6) IO Ref = 5mA, IO Rcv = 2mA.
®
RCV420
3
Supply ............................................................................................... ±22V
Input Current, Continuous ................................................................ 40mA
Input Current Momentary, 0.1s ........................... 250mA, 1% Duty Cycle
Common-Mode Input Voltage, Continuous .......................................±40V
Lead Temperature (soldering, 10s)............................................... +300°C
Output Short Circuit to Common (Rcv and Ref)..................... Continuous
NOTE: (1) Stresses above these ratings may cause permanent damage.
ABSOLUTE MAXIMUM RATINGS(1)
V+
Rcv f
Rcv Out
Rcv Com
Ref In
Ref Out
Ref f
NC
–In
C
+In
V–
Ref Com
NC
Ref Noise Reduction
Ref Trim
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TB
B
PIN CONFIGURATION
ORDERING INFORMATION
PERFORMANCE
PRODUCT GRADE PACKAGE
RCV420KP 0°C to +70°C 16-Pin Plastic DIP
RCV420JP 0°C to +70°C 16-Pin Plastic DIP
Top View DIP
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
PACKAGE INFORMATION
PACKAGE DRAWING
PRODUCT PACKAGE NUMBER(1)
RCV420KP 16-Pin Plastic DIP 180
RCV420JP 16-Pin Plastic DIP 180
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix C of Burr-Brown IC Data Book.
4
®
RCV420
TYPICAL PERFORMANCE CURVES
At TA = +25°C, VS = ±15V, unless otherwise noted.
STEP RESPONSE
NO LOAD SMALL SIGNAL RESPONSE
RL = ∞, CL = 1000pF
SMALL SIGNAL RESPONSE
NO LOAD
POSITIVE COMMON-MODE VOLTAGE RANGE
vs POSITIVE POWER SUPPLY VOLTAGE
Positive Power Supply Voltage (V)
Positive Common-Mode Range (V)
80
70
60
50
40
30 11 12 13 14 15 16 17 18 19 20
Max Rating = 40V
–V
S
= –5V to –20V
T
A
= –55°C
T
A
= +25°C
T
A
= +125°C
11.4
NEGATIVE COMMON-MODE VOLTAGE RANGE
vs NEGATIVE POWER SUPPLY VOLTAGE
Negative Power Supply Voltage (V)
Negative Common-Mode Range (V)
–80
–70
–60
–50
–40
–30
–20
–10 –5 –20
Max Rating = –40V
+V
S
= +11.4V to +20V
T
A
= +25°C
T
A
= –55°C to +125°C
–10 –15
COMMON-MODE REJECTION
vs FREQUENCY
Frequency (Hz)
CMR (dB)
100
80
60
40 1 10 100 1k 10k 100k
POWER-SUPPLY REJECTION
vs FREQUENCY
Frequency (Hz)
PSR (dB)
100
80
60
40 1 10 100 1k 10k 100k
90
V+ V–
®
RCV420
5
75Ω
75Ω
R
S
R
S
+In 3
C
T
–In 1
I
IN
4–20mA
16 4
+10V
Reference
5
Ref Com
13
Rcv Com
V+ V–
12 Ref In
15 Rcv f
14 Rcv Out
B
V
O
(0–5V)
7 Ref Noise Reduction
8 Ref Trim
10 Ref f
B
11 Ref Out
1µF1µF
RCV420
2
R
X
R
X
C
T
3
2
115
14
Rcv Out
R
1
NOTE: (1) Typical values. See text.
±0.5% Gain
Adjustment
10kΩ
(1)
200Ω
(1)
10kΩ
(1)
RCV420
+In
–In
FIGURE 2. Optional Gain Adjustment.
necessary level shifting. If the Ref In pin is not used for level
shifting, then it must be grounded to maintain high CMR.
GAIN AND OFFSET ADJUSTMENT
Figure 2 shows the circuit for adjusting the RCV420 gain.
Increasing the gain of the RCV420 is accomplished by
inserting a small resistor in the feedback path of the ampli-
fier. Increasing the gain using this technique results in CMR
degradation, and therefore, gain adjustments should be kept
as small as possible. For example, a 1% increase in gain is
typically realized with a 125Ω resistor, which degrades
CMR by about 6dB.
A decrease in gain can be achieved by placing matched
resistors in parallel with the sense resistors, also shown in
Figure 2. The adjusted gain is given by the following
expression
VOUT/IIN = 0.3125 x RX/(RX + RS).
A 1% decrease in gain can be achieved with a 7.5kΩ
resistor. It is important to match the parallel resistance on
each sense resistor to maintain high CMR. The TCR mis-
match between the two external resistors will effect gain
error drift and CMR drift.
There are two methods for nulling the RCV420 output offset
voltage. The first method applies to applications using the
internal 10V reference for level shifting. For these applica-
FIGURE 1. Basic Power Supply and Signal Connections.
THEORY OF OPERATION
Refer to the figure on the first page. For 0 to 5V output with
4–20mA input, the required transimpedance of the circuit is:
VOUT/IIN = 5V/16mA = 0.3125V/mA.
To achieve the desired output (0V for 4mA and 5V for
20mA), the output of the amplifier must be offset by an
amount:
VOS = – (4mA)(0.3125V/mA) = –1.25V.
The input current signal is connected to either +In or –In,
depending on the polarity of the signal, and returned to
ground through the center tap, CT. The balanced input—two
matched 75Ω sense resistors, RS—provides maximum rejec-
tion of common-mode voltage signals on CT and true differ-
ential current-to-voltage conversion. The sense resistors
convert the input current signal into a proportional voltage,
which is amplified by the differential amplifier. The voltage
gain of the amplifier is:
AD = 5V/(16mA)(75Ω) = 4.1667V/V.
The tee network in the feedback path of the amplifier
provides a summing junction used to generate the required
–1.25V offset voltage. The input resistor network provides
high-input impedance and attenuates common-mode input
voltages to levels suitable for the operational amplifier’s
common-mode signal capabilities.
BASIC POWER SUPPLY
AND SIGNAL CONNECTIONS
Figure 1 shows the proper connections for power supply and
signal. Both supplies should be decoupled with 1µF tanta-
lum capacitors as close to the amplifier as possible. To avoid
gain and CMR errors introduced by the external circuit,
connect grounds as indicated, being sure to minimize ground
resistance. The input signal should be connected to either
+In or –In, depending on its polarity, and returned to ground
through the center tap, CT. The output of the voltage refer-
ence, Ref Out, should be connected to Ref In for the
6
®
RCV420
tions, the voltage reference output trim procedure can be
used to null offset errors at the output of the RCV420. The
voltage reference trim circuit is discussed under “Voltage
Reference.”
When the voltage reference is not used for level shifting or
when large offset adjustments are required, the circuit in
Figure 3 can be used for offset adjustment. A low impedance
on the Rcv Com pin is required to maintain high CMR.
ZERO ADJUSTMENT
Level shifting the RCV420 output voltage can be achieved
using either the Ref In pin or the Rcv Com pin. The
disadvantage of using the Ref In pin is that there is an 8:1
voltage attenuation from this pin to the output of the RCV420.
Thus, use the Rcv Com pin for large offsets, because the
voltage on this pin is seen directly at the output. Figure 4
shows the circuit used to level-shift the output of the RCV420
using the Rcv Com pin. It is important to use a low-output
impedance amplifier to maintain high CMR. With this method
of zero adjustment, the Ref In pin must be connected to the
Rcv Com pin.
MAINTAINING COMMON-MODE REJECTION
Two factors are important in maintaining high CMR: (1)
resistor matching and tracking (the internal resistor network
does this) and (2) source impedance. CMR depends on the
accurate matching of several resistor ratios. The high accu-
racies needed to maintain the specified CMR and CMR
temperature coefficient are difficult and expensive to reli-
ably achieve with discrete components. Any resistance im-
balance introduced by external circuitry directly affects
CMR. These imbalances can occur by: mismatching sense
resistors when gain is decreased, adding resistance in the
feedback path when gain is increased, and adding series
resistance on the Rcv Com pin.
The two sense resistors are laser-trimmed to typically match
within 0.01%; therefore, when adding parallel resistance to
decrease gain, take care to match the parallel resistance on
each sense resistor. To maintain high CMR when increasing
the gain of the RCV420, keep the series resistance added to
the feedback network as small as possible. Whether the Rcv
Com pin is grounded or connected to a voltage reference for
level shifting, keep the series resistance on this pin as low as
possible. For example, a resistance of 20Ω on this pin
degrades CMR from 86dB to approximately 80dB. For
applications requiring better than 86dB CMR, the circuit
shown in Figure 5 can be used to adjust CMR.
PROTECTING THE SENSE RESISTOR
The 75Ω sense resistors are designed for a maximum con-
tinuous current of 40mA, but can withstand as much as
250mA for up to 0.1s (see absolute maximum ratings).
There are several ways to protect the sense resistor from
FIGURE 4. Optional Zero Adjust Circuit. FIGURE 5. Optional Circuit for Externally Trimming CMR.
FIGURE 3. Optional Output Offset Nulling Using External
Amplifier.
+In
C
T
3
2
1
15 14 V
RCV420
–In
12
13 5
+15V
OPA237
–15V
O
100kΩ
100kΩ
1kΩ
±150mV adjustment at output.
+In
C
T
3
2
115
14 V
RCV420
–In
12
13 5
OPA237
O
50kΩ
10kΩ
10kΩ
Use 10V Ref for +
and 10V Ref with INA105 for –.
10 11
56
1
3
2
INA105 –10V
V
ZERO
±5V adjustment
at output.
V
O
= (0.3125)(I
IN
) + V
ZERO
+10V
OPA237
13
1k
RCV420
200Ω
CMR
Adjust
Ω1kΩ
1kΩ
1kΩ
Procedure:
1. Connect CMV to C
2. Adjust potentiometer for near zero
T
.
at the output.
®
RCV420
7
+In
CT
3
2
1
15 14 V
RCV420
–In
8
10 11
O
±400mV adjustment at output of reference, and ±50mV
adjustment at output of receiver if reference is used for
level shifting.
VREF
20kΩ
2
315
14 V
RCV420
O
1
2
315
14 V
RCV420
O
1
2
315
14 V
RCV420
O
1
V
RX
R
X
4–20mA
a) R
X
= (V+)/40mA – 75Ω
4–20mA
4–20mA
2N3970
200Ω
R
X
b) R
X
set for 30mA current limit at 25°C.
f
1
V+
V+
V+
c) f
1
is 0.032A, Lifflefuse Series 217 fast-acting fuse.
overcurrent conditions exceeding these specifications. Refer
to Figure 6. The simplest and least expensive method is a
resistor as shown in Figure 6a. The value of the resistor is
determined from the expression
RX = VCC/40mA – 75Ω
and the full scale voltage drop is
VRX = 20mA x RX.
For a system operating off of a 32V supply RX = 725Ω and
VRX = 14.5V. In applications that cannot tolerate such a
large voltage drop, use circuits 6b or 6c. In circuit 6b a
power JFET and source resistor are used as a current limit.
The 200Ω potentiometer, RX, is adjusted to provide a current
limit of approximately 30mA. This circuit introduces a
1– 4V drop at full scale. If only a very small series voltage
drop at full scale can be tolerated, then a 0.032A series 217
fast-acting fuse should be used, as shown in Figure 6c.
For automatic fold-back protection, use the circuit shown in
Figure 15.
VOLTAGE REFERENCE
The RCV420 contains a precision 10V reference. Figure 8
shows the circuit for output voltage adjustment. Trimming
the output will change the voltage drift by approximately
0.007ppm/°C per mV of trimmed voltage. Any mismatch in
TCR between the two sides of the potentiometer will also
affect drift, but the effect is divided by approximately 5. The
trim range of the voltage reference using this method is
typically ±400mV. The voltage reference trim can be used to
trim offset errors at the output of the RCV420. There is an
8:1 voltage attenuation from Ref In to Rcv Out, and thus the
trim range at the output of the receiver is typically ±50mV.
The high-frequency noise (to 1MHz) of the voltage refer-
ence is typically 1mVp-p. When the voltage reference is
used for level shifting, its noise contribution at the output of
the receiver is typically 125µVp-p due to the 8:1 attenuation
from Ref In to Rcv Out. The reference noise can be reduced
by connecting an external capacitor between the Noise
Reduction pin and ground. For example, 0.1µF capacitor
reduces the high-frequency noise to about 200µVp-p at the
output of the reference and about 25µVp-p at the output of
the receiver.
Request Application Bulletin AB-014 for details of a
more complete protection circuit.
FIGURE 6. Protecting the Sense Resistors.
FIGURE 7. Optional Voltage Reference External Trim Circuit.
8
®
RCV420
FIGURE 8. RCV420 Used in Conjunction with XTR101 to Form a Complete Solution for 4-20mA Loop.
0.01µFQ
1
1N4148
–12V
1µF
5
4
2
3
15
13 14
11
10 12
1µF
V
O
= 0 to 5V
RCV420
16
+12V
8
7
9
E
B
14 11
12
13
4
3
2
XTR105
R
CM
= 1kΩ
1
0.01µF
R
Z
137Ω
R
LIN1
5760ΩR
G
402Ω
RTD
Pt100
100°C to
600°C
6
R
G
R
G
V
IN
–
V
IN
+
V
LIN
I
R1
I
R2
V
REG
V+
I
RET
I
O
10
I
O
= 4mA – 20mA
NOTE: A two-wire RTD connection is shown. For remotely
located RTDs, a three-wire RTD conection is recommended.
R
G
becomes 383Ω, R
LIN2
is 8060Ω. See Figure 3 and
Table I.
FIGURE 9. Isolated 4-20mA Instrument Loop (RTD shown).
5
4
2
3
15
13 14
11
10 12
RCV420
16
16 2
15
10 87
9
V–
V
O
V+
0 – 5V
ISO122
1
+15V
0
–15V
1µF
1µF
Isolated Power
from PWS740
0.01µFQ
1
1N4148
8
7
9
E
B
14 11
12
13
4
3
2
XTR105
R
CM
= 1kΩ
1
0.01µF
R
LIN1
R
G
R
LIN2
RTD
6
R
G
R
G
V
LIN
I
R1
I
R2
V
REG
V+
I
RET
I
O
10
I
O
= 4mA – 20mA
V
IN
–
V
IN
+
R
Z
NOTE: A three-wire RTD connection is shown.
For a two-wire RTD connection eliminate R
LIN2
.
®
RCV420
9
1
2
315
14 V
RCV420
12 13 5
OPA237
O
20kΩ
10 11
CT
4–20mA
(5–0V)
+6.25V
12kΩ
+10V
+6.25V
R
S
R
S
C
T
1
2
3
RCV420
–In
+In
15 14
12
5
V
O
I
1
I
2
13
R
S
R
S
C
T
1
2
3
RCV420
–In
+In
10 11 12 15 14
13
4–20mA
5
(1) V
O
(0–5V)
R
S
R
S
C
T
1
2
3
RCV420
–In
+In
10 11 12 15 14
13
5
(N) V
O
(0–5V)
R
CM(1)
R
G(1)
FIGURE 10. Series 4-20mA Receivers.
FIGURE 13. Power Supply Current Monitor Circuit.
FIGURE 12. 4-20mA to 5-0V Conversion.
VO = 6.25V – (0.3125) (IIN)
NOTE: (1) RCM and RG are used to provide a first order correction of CMR
and Gain Error, respectively. Table 1 gives typical resistor values for RCM
and RG when as many as three RCV420s are stacked. Table II gives
typical CMR and Gain Error with no correction. Further improvement in
CMR and Gain Error can be achieved using a 500kΩ potentiometer for
RCM and a 100Ω potentiometer for RG.
RCV420 RCM (kΩ)R
G
(Ω)
1∞0
2 200 7
367 23
TABLE 1. Typical Values for RCM and RG.
TABLE II. Typical CMR and Gain Error
Without Correction.
RCV420 CMR (dB) GAIN ERROR %
1 94 0.025
2 68 0.075
3 62 0.200
FIGURE 11. Differential Current-to-Voltage Converter.
VO = 0.3125 (I1 – I2)
Max Gain Error = 0.1% (RCV420BG)
(IL MAX
16mA –1)
NOTE: (1) RX = RS/
C
T
15
512 13
3
2
1
14
RCV420
+In
+In
Load
Load
Power
Supply
C
T
15
512 13
14
RCV420
–In
I
L
+In
Power
Supply
–40V (max)
+40V (max)
R
X(1)
R
X(1)
R
X(1)
R
X(1)
R
S
R
S
R
S
R
S
V
O
(0-5V)
V
O
(0-5V)
I
L
10
®
RCV420
301Ω
301Ω
0-20mA
Input
75Ω
75Ω
1
2
3
16 4
+15V –15V
100kΩ
RCV420
13
1.01kΩ
5
11.5kΩ
92kΩ99kΩ300kΩ
300kΩ
10
11
14
15
12
V
O
0-5V
10.0V
Ref
1
2
12
15
14
10
11
75Ω
75Ω
300kΩ99kΩ
10.0V
Reference
1.01kΩ
RCV420
V
0–5V
OUT
13 5
16 4–15V+15V
LM193
1.27kΩ
10kΩ
604Ω
6.95V
Underrange
Output
Overrange
Output
1MΩ10kΩ10kΩ
3
10.0V
10kΩ
+15V
2N3904
22.9kΩ
10kΩ
0.57V
8
4
4–20mA
Input
+5V
AT&T
LH1191
Solid-State
Relay
555
Timer
84
31
2
5
1µF 0.01µF
1µF
7
6
470Ω47kΩ
92kΩ
11.5kΩ
300kΩ100kΩ
FIGURE 14. 4-20mA Current Loop Receiver with Input Overload Protection.
See Application Bulletin AB-014 for more details.
FIGURE 15. 0-20mA/0-5V Receiver Using RCV420.
See Application Bulletin AB-018 for more details.
PACKAGING INFORMATION
Orderable Device Status (1) Package
Type Package
Drawing Pins Package
Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
RCV420JP ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
RCV420JPG4 ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
RCV420KP ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
RCV420KPG4 ACTIVE PDIP N 16 25 Green (RoHS &
no Sb/Br) CU NIPDAU N / A for Pkg Type
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
PACKAGE OPTION ADDENDUM
www.ti.com 4-Jun-2009
Addendum-Page 1
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the latest relevant information before placing orders and should verify that such information is current and complete. All products aresold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standardwarranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except wheremandated by government requirements, testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products andapplications using TI components. To minimize the risks associated with customer products and applications, customers should provideadequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Informationpublished by TI regarding third-party products or services does not constitute a license from TI to use such products or services or awarranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectualproperty of the third party, or a license from TI under the patents or other intellectual property of TI.Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompaniedby all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptivebusiness practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additionalrestrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids allexpress and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is notresponsible or liable for any such statements.TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonablybe expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governingsuch use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, andacknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their productsand any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may beprovided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products insuch safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products arespecifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet militaryspecifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely atthe Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products aredesignated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designatedproducts in automotive applications, TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:Products ApplicationsAmplifiers amplifier.ti.com Audio www.ti.com/audioData Converters dataconverter.ti.com Automotive www.ti.com/automotiveDLP® Products www.dlp.com Broadband www.ti.com/broadbandDSP dsp.ti.com Digital Control www.ti.com/digitalcontrolClocks and Timers www.ti.com/clocks Medical www.ti.com/medicalInterface interface.ti.com Military www.ti.com/militaryLogic logic.ti.com Optical Networking www.ti.com/opticalnetworkPower Mgmt power.ti.com Security www.ti.com/securityMicrocontrollers microcontroller.ti.com Telephony www.ti.com/telephonyRFID www.ti-rfid.com Video & Imaging www.ti.com/videoRF/IF and ZigBee® Solutions www.ti.com/lprf Wireless www.ti.com/wireless
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265Copyright © 2009, Texas Instruments Incorporated
