NTE NTE998 Datasheet

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

Reverse Breakdown Voltage IR = 500µA 1.20 1.22 1.25 V
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 – 0.003 0.01 %/°C
Reverse Current 0.05 – 5.0 mA

.190
(4.8)

Max

.135 (3.45) Min

.500

(12.7)

Min

.100 (2.54)

.205 (5.2) Max

A

.018 (.045) Dia Max

K

.160

(4.1)

Max

.080 (2.0) Max