LM1894

SNAS551C – DECEMBER 1994 – REVISED APRIL 2013

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Electrical Characteristics (continued)

VS = 8V, TA = 25°C, VIN = 300 mV at 1 kHz, circuit shown in Figure 1 unless otherwise specified

Parameter

Conditions

Min

Typ

Max

Units

CONTROL SIGNAL PATH

Summing Amplifier Voltage Gain

Both Channels Driven

0.9

1

1.1

V/V

Gain Amplifier Input Impedance

Pin 6

24

30

39

k

Ω

Voltage Gain

Pin 6 to Pin 8

21.5

24

26.5

V/V

Peak Detector Input Impedance

Pin 9

560

700

840

Ω

Voltage Gain

Pin 9 to Pin 10

30

33

36

V/V

Attack Time

Measured to 90% of Final Value with

300

500

700

μs

10 kHz Tone Burst

Decay Time

Measured to 90% of Final Value with

60

45

75

ms

10 kHz Tone Burst

DC Voltage Range

Minimum Bandwidth to Maximum

1.1

3.8

V

Bandwidth

4

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