AD7765BRUZ Ver la hoja de datos (PDF) - Analog Devices

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componentes Descripción

Fabricante

AD7765BRUZ

24-Bit, 156 kSPS, 112 dB Sigma-Delta ADC with On-Chip Buffers and Serial Interface

Analog Devices 

AD7765

Data Sheet

Parameter

Normal Power Mode

AIDD1 (Modulator)

AIDD2 (General)5

AIDD3 (Differential Amplifier)

AIDD4 (Reference Buffer)

DIDD5

Low Power Mode

AIDD1 (Modulator)

AIDD2 (General)5

AIDD3 (Differential Amplifier)

AIDD4 (Reference Buffer)

DIDD5

POWER DISSIPATION

Normal Power Mode

Low Power Mode

Power-Down Mode6

Test Conditions/Comments

MCLK = 40 MHz

AVDD3 = 5 V

AVDD4 = 5 V

MCLK = 40 MHz

MCLK = 40 MHz

AVDD3 = 5 V

AVDD4 = 5 V

MCLK = 40 MHz

MCLK = 40 MHz, decimate 128×

MCLK = 40 MHz, decimate 128×

PWRDWN pin held logic low

Min

Typ

Max

Unit

19

mA

13

mA

10

mA

9

mA

37

mA

10

mA

7

mA

5.5

mA

5

mA

20

mA

300

371

mW

160

215

mW

1

mW

1 See the Terminology section.

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

3 The 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 the applied MCLK frequency.

6 Tested at 125°C.

Rev. C | Page 6 of 33

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