NTE NTE1085 Datasheet

NTE1085

Integrated Circuit

Low Noise Audio Preamp

Features:

D Low Noise: VNI = 0.8µV
D High Open Loop Voltage Gain: GVO = 92dB (Typ)
D Low Distortion: THD = 0.1% (Max) at V

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V

Power Dissipation, P

CC

D

Derate Above 25°C 4mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature Range, T
Storage Temperature Range, T

Electrical Characteristics: (VCC = 35V, TA = +25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

rms(Typ)

opr

stg

OUT

= 7V

, GV = 40dB, f= 1kHz

rms

42V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

400mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–30° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply Current I
Voltage Gain

Open Loop

Closed Loop G
Maximum Output Voltage V
Equivalent Input Noise Voltage V

G

CC

VO

OM

NI

VIN = 0 – 3.5 6.0 mA

VIN = –85dBm, f = 1kHz 87 92 – dB
V

V

= 7V

OUT

f = 1kHz, THD = 0.1% 7.0 9.0 – V
RIAA Equalizer, Rg = 2.2kΩ, f = 1kHz – 0.8 1.8 µV

, f = 1kHz 38 40 42 dB

rms

rms

rms

Pin Connection Diagram

(Front View)

7

V
Output

6

Bypass

5

GND

4

Feedback

3

Input High

2
1

Preamp Load Resistor

CC

.128 (3.2)

.099
(2.5)

Min

.012 (0.25)

.700 (17.8) Max

.323

17

(8.2)
Max

.100 (2.54)

.600 (15.24)