LM4890

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SNAS138L – SEPTEMBER 2001 – REVISED MAY 2013

(1) (2) (3)

LM4890

Units

Parameter

Test Conditions

(Limits)

Quiescent Power Supply Current

4

8

mA (max)

5

10

mA (max)

Shutdown Current

0.1

2.0

µA (max)

Shutdown Voltage Input High

1.2

V (min)

Shutdown Voltage Input Low

0.4

V (max)

Output Offset Voltage

7

50

mV (max)

9.7

k

Ω (max)

8.5

7.0

k

Ω (min)

Output Power (8

Ω)

THD = 2% (max); f = 1 kHz

1.0

0.8

W

Wake-up time

170

220

ms (max)

Thermal Shutdown Temperature

150

°C (min)

170

190

°C (max)

THD+N

Total Harmonic Distortion + Noise

0.1

%

PSRR

62 (f = 217Hz)

55

dB (min)

Input Terminated with 10 ohms to

66 (f = 1kHz)

ground

Shut Down Time

8

Ω load

1.0

ms (max)

(1)

All voltages are measured with respect to the ground pin, unless otherwise specified.

(2)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(3)

maximum of 2µA.

(4)

Typicals are measured at 25°C and represent the parametric norm.

(5)

Limits are specified to TI's AOQL (Average Outgoing Quality Level).

(6)

Datasheet min/max specification limits are specified by design, test, or statistical analysis.

(7)

ROUT is measured from each of the output pins to ground. This value represents the parallel combination of the 10k ohm output

resistors and the two 20k ohm resistors.

(8)

value by the amount of gain increase. A system gain of 10 represents a gain increase of 14dB. PSRR will be reduced by 14dB and

applies to all operating voltages.

(1) (2) (3)

LM4890

Units

Parameter

Test Conditions

(Limits)

Quiescent Power Supply Current

3.5

7

mA (max)

4.5

9

mA (max)

Shutdown Current

0.1

2.0

µA (max)

Shutdown Voltage Input High

1.2

V(min)

Shutdown Voltage Input Low

0.4

V(max)

(1)

All voltages are measured with respect to the ground pin, unless otherwise specified.

(2)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for

which the device is functional, but do not ensure specific performance limits. Electrical Characteristics state DC and AC electrical

specifications under particular test conditions which ensure specific performance limits. This assumes that the device is within the

Operating Ratings. Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication

of device performance.

(3)

maximum of 2µA.

(4)

Typicals are measured at 25°C and represent the parametric norm.

(5)

Limits are specified to TI's AOQL (Average Outgoing Quality Level).

(6)

Datasheet min/max specification limits are specified by design, test, or statistical analysis.

Copyright © 2001–2013, Texas Instruments Incorporated

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