
LM285 LM385, B
3
MOTOROLA ANALOG IC DEVICE DATA
ELECTRICAL CHARACTERISTICS (TA = 25°C, unless otherwise noted)
LM285–2.5
LM385–2.5/LM385B–2.5
Characteristic
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Reverse Breakdown Voltage (IRmin p IR p 20 mA)
V(BR)R
V
LM285–2.5/LM385B–2.5
2.462
2.5
2.538
2.462
2.5
2.538
TA = Tlow to Thigh (Note 1)
2.415
–
2.585
2.436
–
2.564
LM385–2.5
–
2.425
2.5
2.575
TA = Tlow to Thigh (Note 1)
–
2.400
–
2.600
Minimum Operating Current
IRmin
A
TA = 25°C
–
13
20
–
13
20
TA = Tlow to Thigh (Note 1)
–
30
–
30
Reverse Breakdown Voltage Change with Current
V(BR)R
mV
IRmin p IR p 1.0 mA, TA = +25°C
–
1.0
–
2.0
TA = Tlow to Thigh (Note 1)
–
1.5
–
2.5
1.0 mA
p IR p 20 mA, TA = +25°C
–
10
–
20
TA = Tlow to Thigh (Note 1)
–
20
–
25
Reverse Dynamic Impedance
Z
0.6
–
0.6
–
W
IR = 100 A, TA = +25°C
Average Temperature Coefficient
V(BR)/T
–
80
–
80
–
ppm/
°C
20
A p IR p 20 mA, TA = Tlow to Thigh (Note 1)
Wideband Noise (RMS)
n
–
120
–
120
–
V
IR = 100 A, 10 Hz p f p 10 kHz
Long Term Stability
S
–
20
–
20
–
ppm/
IR = 100 A, TA = +25°C ± 0.1°C
kHR
NOTES: 1. Tlow = – 40°C for LM285–1.2, LM285–2.5
Thigh = +85°C for LM285–1.2, LM285–2.5
= 0
°C for LM385–1.2, LM385B–1.2, LM385–2.5, LM385B–2.5
Thigh =+70°C for LM385–1.2, LM385B–1.2, LM385–2.5, LM385B–2.5