AS1702, AS1703, AS1704, AS1705
austriamicrosystems
Data Sheet
5V Operation
5 Electrical Characteristics
5.1 5V Operation
VCC = 5V, GND = 0V, SHDN = VCC, SHDM = GND, RIN = RF = 10kΩ (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
(unless otherwise specified). Specifications over temperature (TAMB = TMIN to TMAX) are guaranteed by design, not
production tested.
Table 2. Electrical Characteristics – 5V Supply
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VCC
Supply Voltage
2.7
5.5
V
VIN- = VIN+ = VBIAS;
Supply Current 1
Shutdown Supply
ICC
8
10.4
1
mA
µA
TAMB = -40 to +85°C, per amplifier
ISHDN
VIH
SHDN = SHDM = GND per amplifier
0.05
0.7 x VCC
SHDN, SHDM
Threshold
V
V
VIL
0.3 x VCC
Common-Mode Bias
Voltage 2
VBIAS
VCC/2 - 5% VCC/2 VCC/2 + 5%
AV = 0dB (AS1703)
±1
±1
±1
±10
±15
VOS
Output Offset Voltage VIN- = VIN+ = VBIAS AV = 3dB (AS1704)
AV = 6dB (AS1705)
mV
V
±20
AV = 0dB (AS1703)
Inferred from CMRR
0.5
0.5
0.5
0.5
10
VCC - 0.5
VCC - 0.6
VCC - 0.8
VCC - 1.2
20
AV = 3dB (AS1704)
AV = 6dB (AS1705)
Common-Mode Input
Voltage
Test
VIC
External Gain AS1702
RIN
Input Impedance
AS1703, AS1704, AS1705
15
kΩ
-50
-60
-64
-79
Common-Mode
Rejection Ration
CMRR
dB
fN = 1kHz
VIN- = VIN+ = VBIAS;
f = 217Hz
f = 1kHz
Power Supply
Rejection Ratio
PSRR
VRIPPLE = 200mVp-p;
dB
-73
RL = 8Ω; CBIAS = 1µF
RL = 8Ω
RL = 4Ω
0.8
1.2
1.6
THD+N = 1%;
fIN = 1kHz
Output Power 3
POUT
W
%
RL = 4Ω, fIN = 1kHz, POUT = 1.28W,
0.06
VCC = 5V, AV = 6dB
Total Harmonic
THD+N
Distortion plus Noise 4
RL = 8Ω, fIN = 1kHz, POUT = 0.9W,
0.03
±1
VCC = 5V, AV = 6dB
Gain Accuracy
AS1703, AS1704, AS1705
Bridge-tied capacitance
±2
%
Thermal Shutdown
Threshold
+145
°C
Thermal Shutdown
Hysteresis
9
°C
pF
ms
Maximum Capacitive
Drive
CLOAD
tPU
500
125
Power-up/Enablefrom
Shutdown Time
tSHDN
VPOP
Shutdown Time
Turn-Off Transient 5
3.5
50
µs
mV
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.
2. Common-mode bias voltage is the voltage on BIAS and is nominally VCC/2.
3. Output power is specified by a combination of a functional output current test and characterization analysis.
4. Measurement bandwidth for THD+N is 22Hz to 22kHz.
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.
www.austriamicrosystems.com
Revision 1.01
3 - 13