PRECISION SHUNT VOLTAGE
REFERENCE
PRELIMINARY - April 13, 1998
SC4040
ELECTRICAL CHARACTERISTICS
T
A
= 25°C unless otherwise specified.
Parameter
Reverse Breakdown Voltage
Symbol
V
Z
I
Z
= 100µA
Condition
T
A
= 25°C
T
A
= -40 to +85°C
Minimum Operating Current
Reverse Breakdown Voltage Temperature Coefficient
I
Z(min)
∆
V
Z
∆
T
∆
V
Z
∆
I
Z
SC4040E (2.0%)
MIN
2.450
2.426
TYP
2.500
2.500
60
I
Z
= 10mA
I
Z
= 1mA
I
Z
= 100µA
I
Z(min)
< I
Z
< 1mA
T
A
= -40 to +85°C
T
A
= 25°C
T
A
= -40 to +85°C
1mA < I
Z
< 12mA
T
A
= 25°C
T
A
= -40 to +85°C
MAX
2.550
2.574
80
±150
1.0
1.2
8.0
10.0
0.25
35
1.1
UNITS
V
V
µA
ppm/°C
mV
mV
mV
mV
Ω
µV
Ratio of Change in V
Z
to Change in I
Z
Reverse Dynamic Impedance
Wideband Noise (RMS)
Long Term Stability of Reverse Breakdown Voltage
Z
R
e
N
∆
V
Z
I
Z
= 1mA, f = 120 Hz, I
AC
= 0.1 I
Z
I
Z
= 100µA
10Hz < f < 10kHz
t = 1000 hours
T = 25°C ± 0.1°C
I
Z
= 100µA
120
ppm
4
© 1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
SEMTECH [ SEMTECH CORPORATION ]
