DAC-HP16BMC-1 - C&D Technologies, Inc.

DAC-HP Series

16-Bit, High-Performance

Digital-to-Analog Converters

X C ELL E N C E

®®

FEATURES

•16-Bit resolution

•3 Output voltage ranges

•±15ppm/°C maximum gain tempco

•Integral nonlinearity error ±0.003%FSR, max.

•14 Bits monotonic from +10°C to +40°C

•High-reliability MIL-STD–883 models available

Figure 1. Functional Block Diagram

MSB

BITS

5kΩ

6.4kΩ

LSB

1 2 3 4

REFERENCE

OUT 24

GAIN

ADJUST

BIPOLAR

OFFSET

+15V

SUPPLY

20 19

21 SUMMING

JUNCTION

5 6 7 8 9 10 1112

16-BIT

D/A CONVERTER

DIGITAL INPUTS

GROUND

OUTPUT

–15V

SUPPLY

REFERENCE

CONTROL

CIRCUIT

6.4V

REFERENCE

13 14 15 16

1 2 3 4 5 6 7 8 9 10 1112 13 14 15 16

5kΩ

GENERAL DESCRIPTION

The DAC-HP Series are high-resolution hybrid digital-to-analog

converters with voltage outputs. The Series has 16-bit binary

resolution with ±0.003% integral nonlinearity. These units are

self-contained, including a low-tempco Zener reference circuit

and an output amplifier, in a miniature 24-pin DDIP package.

The DAC-HP Series offers both unipolar and bipolar modes

with outputs of 0 to +10V and ±5V respectively. Devices with a

bipolar output range of ±10V are also available and are

designated with a "-1" suffix after the model designation. Input

coding is complementary binary and complementary offset

binary.

The DAC-HP design incorporates thin and thick-film hybrid

technology. The design also includes an on-board amplifier

and a precision Zener reference circuit. This eliminates code

dependent ground currents by routing currents from the

positive supply to the internal ground node as determined by

the R-2R ladder network. The internal feedback resistors for

the on-board amplifier track the ladder network resistors,

enhancing temperature stability and performance. The

excellent tracking of the resistors results in tempcos for

differential nonlinearity, gain and zero of ±2, ±15 and

±5ppm/°C max., respectively.

The DAC-HP Series operates off of ±15V supplies and offers

models with temperature performance covering the 0 to +70°C

commercial or –55 to +125°C military temperature ranges.

High reliability MIL-STD-883 versions are also available.

PIN FUNCTION PIN FUNCTION

1BIT 1 (MSB) 24 REFERENCE OUT

2BIT 2 23 +15V SUPPLY

3BIT 3 22 GAIN ADJUST

4BIT 4 21 SUMMING JUNCTION

5BIT 5 20 GROUND

6BIT 6 19 –15V SUPPLY

7BIT 7 18 BIPOLAR OFFSET

8BIT 8 17 OUTPUT

9BIT 9 16 BIT 16 (LSB)

10 BIT 10 15 BIT 15

11 BIT 11 14 BIT 14

12 BIT 12 13 BIT 13

INPUT/OUTPUT CONNECTIONS

DATEL, Inc.

, 11 Cabot Boulevard, Mansfield, MA 02048-1194 (U.S.A.) Tel: 508-339-3000 Fax: 508-339-6356 • For immediate assistance 800-233-2765

DAC-HP16

INPUTS

Resolution 16 bits

Coding, Unipolar Output Complementary binary

Coding, Bipolar Output Complementary offset binary

Input Logic Level, Bit ON ("0") ➀0V to +0.8V at –1mA

Input Logic Level, Bit OFF ("1") ➀+2.4V to +5.5V at +40µA

Logic Loading 1 TTL load

PERFORMANCE ➁

Nonlinearity Error, max. ±0.003% of FSR

Monotonicity, +10°C to +40°C 14 bits

Gain Error, Before Trimming ±0.1%

Zero Error, Before Trimming ±0.1% of FSR 

Gain Tempco, max. ➂ ±15ppm/°C of FSR

Gain Tempco, max. BGC ±20ppm/°C of FSR

Zero Tempco, Unipolar, max. ±5ppm/°C of FSR

Offset Tempco, Bipolar, max. ±8ppm/°C of FSR

Differential Nonlinearity

Tempco, max. ±2ppm/°C of FSR

Settling Time, 10V Change ➃15µs

Slew Rate ±20V/µs

Power Supply Rejection ±0.003%FSR/% ➄

OUTPUTS

Output Voltage Range, Unipolar ➅0 to +10V

Output Voltage Range, Bipolar ±5V

Output Voltage Range, “–1” Suffix ±10V

Output Current, min. ➆±5mA

Output Impedance 0.05Ω

POWER REQUIREMENTS

Quiescent, All Bits High +15V, ±0.5V at 20mA

–15V, ±0.5V at 25mA

±12V operation ➇

PHYSICAL ENVIRONMENTAL

Operating Temperature Range, Case 0°C to +70°C (BMC, BGC)

–55°C to +125°C (BMM, 883)

Storage Temperature Range –65°C to +150°C

Package Type 24-pin DDIP

Weight 0.22 ounces (6.3 grams)

TECHNICAL NOTES

1. It is recommended that these converters be operated with

local supply bypass capacitors of 1µF (tantalum type) at the

+15V and –15V supply pins. The capacitors should be

connected as close to the pins as possible. In high-

frequency noise environments, an additional 0.01µF

ceramic capacitor should be used in parallel with each

tantalum bypass.

2. When laying out the circuit board for this device, isolate the

analog, digital and power grounds as much as possible from

each other before joining them at pin 20.

3. If the reference output (pin 24) is used, it must be buffered

by an operational amplifier in the noninverting mode. See

Figure 2. Current drawn from pin 24 should be limited to

±10µA in order that the temperature coefficient of the

reference circuit not be affected. This is sufficient current

for the bias current requirements of most popular

operational amplifier types.

ABSOLUTE MAXIMUM RATINGS

Positive Supply, Pin 23 +18V

Negative Supply, Pin 19 –18V

Digital Input Voltage, Pins 1–16 +5.5V

Output Current, Pin 17 ±20mA

Lead Temperature (soldering, 10s) 300°C

FUNCTIONAL SPECIFICA TIONS

(Typical at +25°C and ±15V supplies unless otherwise noted.)

Footnotes

➀Drive from TTL output with only the DAC-HP as load.

➁FSR is full-scale range and is 10V for 0 to +10V or –5V to +5V outputs,

20V for ±10V output, etc

➂For all models except DAC-HP16BGC

➃Settling to ±0.5mV

➄±0.006%FSR/% maximum over full military temperature range

for MM and 883 models.

➅Unipolar output range for suffix “–1” models, 0 to +10V, is reached at

the 1/2 scale point.

➆Pin 17.

➇For ±12V operation, consult factory.

CALIBRATION PROCEDURE

For bipolar operation, connect Bipolar Offset (pin 18) to

Summing Junction (pin 21). For unipolar operation, connect

Bipolar Offset (pin 18) to Ground (pin 20). In making the

following adjustments, refer to the Coding Tables and

Connection Diagrams.

1. Zero Adjustment. Set the input digital code to 1111 1111

1111 1111 and adjust the ZERO ADJ. potentiometer to give

0.00000V output for unipolar operation or –FS output for

bipolar operation.

2. Gain Adjustment. Set the input digital code to 0000 0000

0000 0000 and adjust the GAIN ADJ. potentiometer to give

+FS – 1LSB output for either unipolar or bipolar operation.

Figure 2. Use of Reference Output

±5mA

* MAXIMUM OUTPUT CURRENT IS ±10µA

DAC-HP16B

+6.4V* EXTERNAL

CIRCUITRY

0.5µA

DAC-HP16

CODING TABLES

Table 1. Bipolar Output — Complementary Offset Binary

INPUT CODE SCALE

MSB LSB

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +FS – 1LSB +4.99985V +9.99969V

0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 +1/2FS +2.50000 +5.00000

0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 00.00000 0.00000

1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 –1/2FS –2.50000 –5.00000

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 –FS + 1LSB –4.99985 –9.99969

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 –FS –5.00000V –10.00000V

INPUT CODE

MSB LSB

0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +FS – 1LSB +9.99985V

0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 +3/4FS +7.50000

0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 +1/2FS +5.00000

1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 +1/4FS +2.50000

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 +1LSB +153µV

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0

SCALE

Table 2. Unipolar Output — Complementary Binary

CONNECTION DIAGRAMS

Figure 4. Bipolar OperationsFigure 3. Unipolar Operations

OUTPUT

VOLTAGE

SUFFIX "-1"

OUTPUT

VOLTAGE

OUTPUT

VOLTAGE

6.4kΩ

REFERENCE OUT24

BIPOLAR OFFSET18

6.4V

REF.

21 SUMMING JUNCTION

GROUND

OUTPUT

5kΩ

5kΩ*

IOUT

* 10k FOR -1 MODELS

FULL SCALE

IOUT = 2mA

Figure 5. Output Circuit

2.2MΩ

DAC-HP16B

+15V

0.01µF

22 510kΩ

50kΩ

–15V

OUTPUT (0 TO +10V)

ZERO

ADUST

GAIN

ADUST

2.2MΩ

DAC-HP16B

+15V

0.01µF

22 510kΩ

50kΩ

–15V

OUTPUT (±5V)

ZERO

ADUST

GAIN

ADUST

MECHANICAL DIMENSIONS Inches (mm)

0.200 MAX.

(5.080)

0.235 MAX.

(5.969)

0.600 ±0.010

(15.240)

0.80 MAX.

(20.32)

0.100 TYP.

(2.540)

0.100

(2.540)

0.018 ±0.002

(0.457)

0.100

(2.540)

0.040

(1.016)

1.31 MAX.

(33.27)

1 12

1.100

(27.940)

0.190 MAX.

(4.826)

0.010

(0.254)

+0.002

–0.001

SEATING

PLANE

0.025

(0.635)

Dimension Tolerances

(unless otherwise indicated):

2 place decimal (.XX) ±0.010 (±0.254)

3 place decimal (.XXX) ±0.005 (±0.127)

Lead Material: Kovar alloy

Lead Finish: 50 microinches (minimum) gold plating

over 100 microinches (nominal) nickel plating

ORDERING INFORMATION

MODEL NUMBER OPERATING TEMP. RANGE

DAC-HP16BGC 0 to +70°C

DAC-HP16BMC 0 to +70°C

DAC-HP16BMM –55 to +125°C

DAC-HPB/883 –55 to +125°C

DAC-HP16BGC-1 0 to +70°C

DAC-HP16BMC-1 0 to +70°C

DAC-HP16BMM-1 –55 to +125°C

DAC-HPB-1/883 –55 to +125°C

The MIL-STD-883 units are available under DESC Drawing

Number 5962-89531. Contact DATEL for 883 product

specifications.

DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151

Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356

Internet: www.datel.com Email: sales@datel.com

DATEL (UK) LTD. Tadley, England Tel: (01256)-880444

DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01

DATEL GmbH München, Germany Tel: 89-544334-0

DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-6354-2025

DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained

herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.

DAC-HP16

DS-0165C 1996