AS1702 datasheet(4/13 Pages) AMSCO

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AS1702, AS1703, AS1704, AS1705

austriamicrosystems

Data Sheet

3V Operation

5.2 3V Operation

VCC = 3V, GND = 0V, SHDN = VCC, SHDM = GND, RIN = RF = 10k

Ω (AS1702), TAMB = +25°C, CBIAS = 0.1µF, no load.

Typical values are at TAMB = +25°C (unless otherwise specified.) All specifications are 100% tested at TAMB = +25°C.

Specifications over temperature (TAMB = TMIN to TMAX) are guaranteed by design, not production tested.

Table 3. Electrical Characteristics – 3V Supply

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

ICC

Supply Current 1

1. Quiescent power supply current is specified and tested with no load. Quiescent power supply current depends

on the offset voltage when a practical load is connected to the amplifier. Guaranteed by design.

VIN- = VIN+ = VBIAS;

TAMB = -40 to +85°C, per amplifier

7.5

ISHDN

Shutdown Supply

SHDN = SHDM = GND per amplifier

0.05

µA

VIH

SHDN, SHDM

Threshold

0.7 x VCC

VIL

0.3 x VCC

VBIAS

Common-Mode

Bias Voltage 2

2. Common-mode bias voltage is the voltage on BIAS and is nominally VCC/2.

VCC/2 - 5% VCC/2 VCC/2 + 5%

VOS

Output Offset

Voltage

VIN- = VIN+ = VBIAS

AV = 0dB (AS1703)

±1

±10

AV = 3dB (AS1704)

±1

±15

AV = 6dB (AS1705)

±1

±20

VIC

Common-Mode

Input Voltage

Inferred from CMRR

Test

AV = 0dB (AS1703)

0.5

VCC - 0.7

AV = 3dB (AS1704)

0.5

VCC - 0.8

AV = 6dB (AS1705)

0.5

VCC - 1.0

External gain AS1702

0.5

VCC - 1.2

RIN

Input Impedance

AS1703, AS1704, AS1705

Ω

CMRR

Common-Mode

Rejection Ration

-50

-60

fN = 1kHz

-64

PSRR

Power Supply

Rejection Ratio

VIN- = VIN+ = VBIAS;

VRIPPLE = 200mVp-p;

RL = 8

Ω; CBIAS = 1µF

f = 217Hz

-79

f = 1kHz

-73

POUT

Output Power 3

3. Output power is specified by a combination of a functional output current test and characterization analysis.

RL = 4

Ω, THD+N = 1%; fIN = 1kHz

590

RL = 8

Ω, THD+N = 1%; fIN = 1kHz

430

THD+N

Total Harmonic

Distortion plus

Noise 4

4. Measurement bandwidth for THD+N is 22Hz to 22kHz.

RL = 4

Ω, fIN = 1kHz, POUT = 460mW, AV = 6dB

0.06

RL = 8

Ω, fIN = 1kHz, POUT = 330mW, AV = 6dB

0.04

Gain Accuracy

AS1703, AS1704, AS1705

±1

±2

Thermal Shutdown

Threshold

+145

°C

Thermal Shutdown

Hysteresis

9°C

CLOAD

Maximum

Capacitive Drive

Bridge-tied capacitance

500

tPU

Power-up/Enable

from

Shutdown Time

125

tSHDN

Shutdown Time

3.5

µs

VPOP

Turn-Off Transient

5. Peak voltage measured at power-on, power-off, into or out of SHDN. Bandwidth defined by A-weighted filters,

inputs at AC GND. VCC rise and fall times

≥ 1ms.

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