TS421IQT datasheet(8/42 Pages) STMICROELECTRONICS

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Table 7. Electrical characteristics VCC = +2 V, GND = 0 V, Tamb = 25 °C (unless otherwise specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

ICC

Supply current

No input signal, no load

1.7

2.5

ISTANDBY

Standby current

No input signal, VSTANDBY = GND for TS421

No input signal, VSTANDBY = VCC for TS419

1000

VOO

Output offset voltage

No input signal, RL = 16 Ω or 32 Ω, Rfeed = 20 kΩ

Output power

THD+N = 0.1% Max, F = 1 kHz, RL = 32 Ω

Output power

THD+N = 1% Max, F = 1 kHz, RL = 32 Ω

Output power

THD+N = 10% Max, F = 1 kHz, RL = 32 Ω

Output power

THD+N = 0.1% Max, F = 1 kHz, RL = 16 Ω

Output power

THD+N = 1% Max, F = 1 kHz, RL = 16 Ω

Output power

THD+N = 10% Max, F = 1 kHz, RL = 16 Ω

THD + N

Total harmonic distortion + noise (Av = 2)

RL = 32 Ω, Pout = 150 mW, 20 Hz ≤ F ≤ 20 kHz

RL = 16 Ω, Pout = 220 mW, 20 Hz ≤ F ≤ 20 kHz

0.1

0.15

PSRR

Power supply rejection ratio (Av = 2) (1)

F = 1 kHz, Vripple = 200 mVpp, input grounded, Cb = 1 μF

SNR

Signal-to-Noise Ratio (Weighted A, Av = 2) (1)

(RL = 32 Ω, THD +N < 0.5%, 20 Hz ≤ F ≤ 20 kHz)

ϕM

Phase margin at unity gain

RL = 16 Ω, CL = 400 pF

Degrees

Gain margin

RL = 16 Ω, CL = 400 pF

GBP

Gain bandwidth product

RL = 16 Ω

1.1

MHz

Slew rate

RL = 16 Ω

0.4

V/µS

1. Guaranteed by design and evaluation.

TS419, TS421

Electrical characteristics

DS3048 - Rev 7

page 8/42

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