UTC LM1875

LINEAR INTEGRATED CIRCUIT

3

QW-R107-019,B

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

Input Bias current

Iib

±0.2

±2

µA

Input Offset Current

0

±0.5

µA

Gain-Bandwidth Product

GBW

Fo=20kHz

5.5

MHz

Open Loop Gain

Gv

DC

90

dB

Power Supply Rejection Ratio

PSRR

Vcc,1kHz,1 Vrms

95

83

52

52

dB

Max Slew Rate

SR

20W,8Ω,70kHz BW

8

V/µs

Current Limit

VOUT=VSUPPLY – 10V

4

3

A

Equivalent Input Noise

Voltage

Rs=600Ω,CCIR

3

µVrms

Note 1: Assumes the use of a heat sink having a thermal resistance of 1℃/W and no insulator with an ambient

temperature of 25℃.Because the output limiting circuitry has a negative temperature coefficient,the maximum output

power delivered to a 4Ωload may be slightly reduced when the tab temperature exceeds 55℃.

TYPICAL APPLICATIONS(CONTINUED)

+Vcc

C1

C3

LM1875

+

_

1

2

3

4

5

R4

1M

R1

22k

R2

22k

C4

C7

+

C6

+

R7

1

C5

R6

200k

R5

10k

+

R3

22k

C2

4Ω~ 8Ω

100μF

2200μF

+

10μF

1.0μF

10μF

0.22μF

0.1μF