AD7765 datasheet(5/32 Pages) AD

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AD7765

Rev. 0 | Page 5 of 32

Parameter

Test Conditions/Comments

Specification

Unit

Normal Power Mode

AIDD1 (Modulator)

mA typ

AIDD2 (General)5

MCLK = 40 MHz

mA typ

AIDD3 (Differential Amplifier)

AVDD3 = 5 V

mA typ

AIDD4 (Reference Buffer)

AVDD4 = 5 V

mA typ

DIDD5

MCLK = 40 MHz

mA typ

Low Power Mode

AIDD1 (Modulator)

mA typ

AIDD2 (General)5

MCLK = 40 MHz

mA typ

AIDD3 (Differential Amplifier)

AVDD3 = 5 V

5.5

mA typ

AIDD4 (Reference Buffer)

AVDD4 = 5 V

mA typ

DIDD5

MCLK = 40 MHz

mA typ

POWER DISSIPATION

Normal Power Mode

300

mW typ

MCLK = 40 MHz, decimate 128×

371

mW max

Low Power Mode

MCLK = 40 MHz, decimate 128×

160

mW typ

215

mW max

Power-Down Mode6

PWRDWN held logic low

mW typ

1 See Terminology section.

2 SNR specifications in decibels are referred to a full-scale input, FS. Tested with an input signal at 0.5dB below full scale, unless otherwise specified.

3 Output Data Rate (ODR) = [(MCLK/2)]/Decimation Rate. That is, the maximum ODR for AD7765 = [(40 MHz)/2)/128] = 156.25 kHz.

4 Tested with a 400 μA load current.

5 Tested at MCLK = 40 MHz. This current scales linearly with MCLK frequency applied.

6 Tested at 125°C.

AD7765 Datasheet(PDF) 5 Page - Analog Devices

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