LM385B-1.2DM View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
MFG CO.
'LM385B-1.2DM' PDF : 7 Pages View PDF
PRODUCT DATABOOK 1996/1997
1.2 & 2.5V MICROPOWER VOLTAGE REFERENCE
PR O D U C T I O N D ATA S H E E T
LM385/385B
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply to TA = 25ºC. Typ number represents TA = 25ºC value.)
LM385/385B-1.2
Parameter
Symbol
Test Conditions
Reverse Breakdown Voltage
LM385
LM385B
Average Temperature Coefficient
Minimum Operating Current
Reverse Breakdown Voltage Chang
with Current
Reverse Dynamic Impedance
Wide Band Noise (RMS)
Long Term Stability
LM385/385B-2.5
Parameter
VZ
∆VZ
∆Temp
IMIN
e
∆IR
rz
en
∆VZ
∆Time
IMIN ≤ IR ≤ IMAX
IMIN ≤ IR ≤ IMAX
IR = 100µA
∆VZ
IMIN ≤ IR ≤ 1mA
1mA ≤ IR ≤ 20mA
IR = 100µA
IR = 100µA, 10Hz ≤ f ≤ 10kHz
IR = 100µA, TA = 25°C ± 0.1°C
Symbol
Test Conditions
Reverse Breakdown Voltage
LM385
LM385B
Average Temperature Coefficient
Minimum Operating Current
Reverse Breakdown Voltage Chang
with Current
Reverse Dynamic Impedance
Wide Band Noise (RMS)
Long Term Stability
VZ
∆VZ
∆Temp
IMIN
e
∆IR
rz
en
∆VZ
∆Time
IMIN ≤ IR ≤ IMAX
IMIN ≤ IR ≤ IMAX
IR = 100µA
∆VZ
IMIN ≤ IR ≤ 1mA
1mA ≤ IR ≤ 20mA
IR = 100µA, f = 20Hz
IR = 100µA, 10Hz ≤ f ≤ 10kHz
IR = 100µA, TA = 25°C ± 0.1°C
LM385/385B-1.2
Units
Min. Typ. Max.
1.205 1.235 1.260 V
1.223 1.235 1.247 V
20
ppm/°C
8
15
µA
1.5 mV
20
mV
1
Ω
60
µV
20
ppm/kHr
LM385/385B-2.5
Units
Min. Typ. Max.
2.425 2.500 2.575 V
2.462 2.500 2.538 V
20
ppm/°C
13
20
µA
2
mV
20
mV
1
Ω
120
µV
20
ppm/kHr
Characteristic Curves
LM385/385B-1.2
FIGURE #
1. RESPONSE TIME
2. REVERSE CHARACTERISTICS
3. FORWARD CHARACTERISTICS
4. TEMPERATURE DRIFT
5. REVERSE VOLTAGE CHANGE
6. REVERSE DYNAMIC IMPEDANCE
7. NOISE VOLTAGE
GRAPH / CURVE INDEX
Characteristic Curves
LM385/385B-2.5
FIGURE #
8. RESPONSE TIME
9. REVERSE CHARACTERISTICS
10. FORWARD CHARACTERISTICS
11. TEMPERATURE DRIFT
12. REVERSE DYNAMIC IMPEDANCE
13. NOISE VOLTAGE
Copyright © 1996
Rev. 1.2a 8/04
3
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