NTE NTE998

NTE998
Integrated Circuit
1.22V Reference Diode
Description:
The NTE998 is a temperature compensated low voltage reference device in a TO92 type package.
A single monolithic structure is obtained by utilizing transistors and thin film resistors. Benefits of this
construction is low noise, low current, and good long term stability associated with modern integrated
circuits.
These characteristics make this device ideal for applications in battery operated equipment or where
low power is necessary.
Features:
D Low Breakdown Voltage: 1.220V typ
D Low Bias Current: 50µA
D Temperature Stability: .005 to .01%/°C
Absolute Maximum Ratings:
Power Dissipation (free air) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW
Linear Derating Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/°C
Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C
Electrical Characteristics:
Parameter
Test Conditions
Min
Typ
Max
Unit
1.20
1.22
1.25
V
Reverse Breakdown Voltage
IR = 500µA
Reverse Breakdown Voltage Change
50µA ≤ IR ≤ 5mA
–
15
20
mV
Reverse Dynamic Impedance
IR = 50µA
–
1
2
Ω
IR = 500µA
–
1
2
Ω
Forward Voltage Drop
IF = 500µA
–
0.7
1.0
V
RMS Noise Voltage
IF = 500µA
–
0.7
1.0
V
Breakdown Voltage Temperatue Coefficient
50µA ≤ IR ≤ 5mA
–
Reverse Current
0.05
0.003 0.01
–
5.0
%/°C
mA
.135 (3.45) Min
.190
(4.8)
Max
.500
(12.7)
Min
.018 (.045) Dia Max
A
K
.100 (2.54)
.160
(4.1)
Max
.205 (5.2) Max
.080 (2.0) Max