Precision Micropower
Bandgap Shunt Reference
CLM4041
FEATURES
•• L ow Volt age Op erati on . . . . . . . . . . . . . . . . . . . . . 1.225 V
•• Trimmed Bandga p Desi gn . . . . . . . . . . . . . . . . . . . . 0. 1%
•• Wide Operating Current Range . . . . . . . . 60µA to 20 mA
•• Lo w Dynam ic Impedanc e . . . . . . . . . . . . . . . . . . . . 0.25Ω
•• Available in SOT-23, TO-92 and SO-8
APLICATIONS
•• Cellular Phunes
•• Port able Com puter s
•• Instrumentation
•• Automotive
DESCRIPTION
The CLM4041 is a two terminal precision voltage reference
with thermal stability guaranteed over temperature, a typical
dynamic impedance of 0.25Ω and very sharp turn-on
characteristics. The device has a fixed output of 1.225V for
input currents between 60µA to 20mA and is an excellent
choice for battery operated applications. Available in three
tolerances, 0.5%, 1.0% and 2.0% and in three package
outlines, SO T-23, SO -8 and TO - 92 .
ORDERING INFORMAT ION
Part Package Tolera nce Te mp. Range
CLM4041CS SOT-23 0.5% -40oC to +85oC
CLM4041DS SOT-23 1.0% -40oC to +85oC
CLM4041ES SOT-23 2.0% -40oC to +85oC
CLM4041CY SO-8 0.5% -40oC to +85oC
CLM4041DY SO-8 1.0% -40oC to +85oC
CLM4041EY SO-8 2.0% -40oC to +85oC
CLM4041CN TO-92 0.5% -40oC to +85oC
CLM4041DN TO-92 1.0% -40oC to +85oC
CLM4041EN TO-92 2.0% -40oC to +85oC
CORPORATION
CAL OG IC CORP OR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
ANODE
CATHODE
1T-15
IT-12
CATHODE
NC
ANODE
SOT-23-3 LEAD
TOP VIEW
1T-13
NC
NC
NC
ANODE
1
2
3
8
7
6
45
CATHODE
NC
NC
NC
SO-8 LEAD
TOP VIEW
ANODE
CATHODE
NC
TO-92
1T-14
3
2
1
TOP VIEW
SYMBO L DIAGRAM AND PIN CONFI G URATIONS
CLM4041
CAL OG IC CORP OR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
CORPORATION
ABSOLUTE M AXIM UM R A T INGS
SYMBOL PARAMETER MAXIMUM UNITS
Reverse Current 20 mA
TAOperating Temperature Range -40 to +85
oC
TJOpera tin g Ju nctio n Tem p era ture Range -4 0 t o +15 0
TSTG Storage Temperature Range -65 to +150
TLEAD Lead Temperature (Soldering) 10 Seconds 260
ESD ESD Rating 2 kV
BLOC K DIAG RAM
1T-16
ANODE
CATHODE
+
–
V
REF
CLM4041
CORPORATION
ELECTRICAL CHARACTERISTICS TA = 25oC unle ss o ther wise sp ecifie d
SYMBOL PARAMETER CLM4041C (0.5%) CLM4041D (1.0%) UNITS CONDITIONS
MIN TYP MAX MIN TYP MAX
VZReverse Brea kdown Volta ge 1.219 1.225 1.231 1.213 1.225 1.237 VI
Z = 100µATA = 25oC
1.211 1.225 1.239 1.201 1.225 1.249 TA = -40 to +85oC
IZ(MIN) Minimum Breakdown Current 30 60 30 60 µA
∆VZ
∆TReverse Brea kdoen Voltage
Temperature Coefficient ±100 ±150 ppm/oCIZ = 10mA
IZ = 1mA
IZ = 100µATA = -40 to +85oC
∆VZ
∆TZRatio of Change in VZ to
Cha ng e in IZ
1.5 2.0
mV
IZ(MIN) ≤ IZ ≤ 1mA TA = 25oC
2.0 2.5 TA = -40 to +85oC
6.0 8.0 ImA ≤ IZ ≤ 12mA TA = 25oC
8.0 10.0 TA = -40 to +85oC
ZRReverse Dynamic Impeda nce 0.25 1.5 0.2 5 2.0 ΩIZ = 1m A, f = 120Hz, IAC = 0.1 IZ
eNWideban d Noise (RMS) 20 20 µAIZ = 100µA
10Hz ≤ f ≤ 10kHz ∆VZ
∆VZLong Term Stability of Reverse
Breakdown Voltage 120 120 ppm t = 1000 Hours
T = 25oC ± 0.1oC
IZ = 100µA
ELECTRICAL CHARACTERISTICS TA = 25oC unle ss o ther wise sp ecifie d
SYMBOL PARAMETER CLM4041E (2.0%) UNITS CONDITIONS
MIN TYP MAX
VZReverse Brea kdown Volta ge 1.200 1.225 1.250 VI
Z = 100µATA = 25oC
1.189 1.225 1.261 TA = -40 to +85oC
IZ(MIN) Minimum Breakdown Current 30 60 µA
∆VZ
∆TReverse Brea kdoen Voltage
Temperature Coefficient ±150 ppm/oCIZ = 10mA
IZ = 1mA
IZ = 100µATA = -40 to +85oC
∆VZ
∆TZRatio of Change in VZ to
Cha ng e in IZ
2.0
mV
IZ(MIN) ≤ IZ ≤ 1mA TA = 25oC
2.5 TA = -40 to +85oC
8.0 ImA ≤ IZ ≤ 12mA TA = 25oC
10.0 TA = -40 to +85oC
ZRReverse Dynamic Impeda nce 0.25 2.0 ΩIZ = 1mA, f = 120Hz, IAC = 0.1 IZ
eNWideban d Noise (RMS) 20 µAIZ = 100µA
10Hz ≤ f ≤ 10 kHz ∆VZ
∆VZLong Term Stability of Reverse
Breakdown Voltage 120 ppm t = 1000 Hours
T = 25oC ± 0.1oC
IZ = 100µA
CAL OG IC CORP OR ATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
