AD1990 datasheet(3/16 Pages) AD

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Preliminary Technical Data

AD199x

Rev. PrA – 1/20/05 | Page 3 of 16

AD199X—SPECIFICATIONS

TEST CONDITIONS UNLESS OTHERWISE NOTED

Supply Voltages

AVDD

5 V

DVDD

5 V

PVDDX

12 V

Ambient Temperature

25 °C

Load Impedance

Ω

Clock Frequency

11.2896 MHz

Measurement Bandwidth

20 Hz to 20 KHz

Table 1. Performance of both channels is identical

Parameter

Min

Typ

Max

Units

Test Conditions/Comments

OUTPUT POWER (PO)

AD1990

AD1992

AD1994

AD1996

RL = 6

Ω, PVDD = 20 V, 1 kHz (FTC)

@ <0.01% THD+N

@ 10% THD+N (FTC)

@ <0.01% THD+N

@ 10% THD+N (FTC)

@ <0.01% THD+N

@ 10% THD+N (FTC)

@ <0.01% THD+N

@ 10% THD+N (FTC)

Efficiency

fIN =1 kHz, PO = 5 W, RL = 6

Ω

RON

per High Side Transistor

0.3

Ω

@ 1 A

per Low Side Transistor

0.2

Ω

@ 1 A

Maximum Current Through OUTx

Thermal Warning Active

135

°C

Die temperature

Thermal Shutdown Active

150

°C

Die temperature

Overcurrent Shutdown Active

Nominal Input Level

1.0

VRMS

PGA gain = 0 dB

Modulation Factor

PERFORMANCE SPECIFICATIONS

Total Harmonic Distortion (THD+N)

0.005

PGA = 0 dB, PO = 5 W

0.007

PGA = 6 dB, PO = 5 W

0.01

PGA = 12 dB, PO = 5 W

0.02

PGA = 18 dB, PO = 5 W

Signal/Noise Ratio (SNR)

102

Dynamic Range (DNR)

102

-60 dB Input

Crosstalk

Power supply rejection (PSRR)

-100

Measured channel input = 0 VRMS,

other channel = 1 kHz at 5W

20 Hz - 1 kHz

20 Hz – 20 kHz

DC SPECIFICATIONS

Input Impedance

Ω

AINL and AINR analog inputs

Output DC Offset Voltage

±10

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