data-converters

AD7124-8

Full part number: AD7124-8BBCPZ

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This Analog Devices datasheet covers the AD7124-8 family, an 8-channel, low noise, 24-bit sigma-delta ADC with programmable gain and internal reference. It targets industrial process control, instrumentation, and smart transmitter applications requiring high precision. Key parameters include a supply voltage of 2.7 V to 3.6 V, up to 22 noise-free bits, and three power modes: full power at 9.38 SPS (23 nV rms), mid power at 2.34 SPS (20 nV rms), and low power at 1.17 SPS (24 nV rms). The device features rail-to-rail inputs, simultaneous 50/60 Hz rejection, diagnostic functions for safe integrity certification, and AEC-Q100 automotive qualification.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
output current — — 10 mA
supply voltage range 200 mV — 600 mV 1.65 V ≤ IOVDD≤ 3.6 V
rds on — 7 Ohm 10 Ohm
cmrr 85 dB 90 dB — AIN = 1 V, gain = 1
operating temperature -40 °C — 125 °C
clock frequency — 614 kHz —
standby current — 7 µA 15 µA LDOs on only
input capacitance — 10 pF — All digital inputs
output capacitance — 10 pF —
psrr — 85 dB —
dropout voltage — — 1.6 V AVDD- AVSS≥ 2.7 V
adc resolution — 24 bit —
sample rate — 19.2 kHz —
settling time — 41.8 ms —
channel count — 8 —
03 — Alternatives

Closest matches to AD7124-8

ADS131M02 13.3× higher clock frequency, 6.6× higher supply voltage range, 1.7× higher sample rate
ADS1255 6.2× higher supply voltage range, 4.8× higher settling time, 1.6× higher sample rate
ADS131M02IPWR 13.3× higher clock frequency, 7.9× higher supply voltage range, 3.3× higher sample rate
AD7682BCBZ-RL7 13.0× higher sample rate, 9.8× higher supply voltage range, 8.4× lower settling time
ADS1114 13.8× higher supply voltage range, 1.5× lower adc resolution, 1.2× higher cmrr
AD7190BRUZ 12.5× higher supply voltage range, 8.0× lower sample rate, 1.3× lower operating temperature
MCP3004 10.4× higher sample rate, 10.2× higher supply voltage range, 5.9× higher clock frequency
PCM1808 20.0× higher clock frequency, 12.5× higher supply voltage range, 2.5× higher sample rate
04 — FAQ

Frequently asked questions

What is the ADC resolution of the AD7124-8BBCPZ?

The ADC resolution is 24 bit.

What is the channel count of the AD7124-8BBCPZ?

The channel count is 8.

What is the maximum clock frequency for the AD7124-8BBCPZ?

The maximum clock frequency is 614 kHz.

What is the CMRR when AIN = 1 V and gain = 1?

The CMRR is 90 dB.

What is the dropout voltage when AVDD- AVSS≥ 2.7 V?

The dropout voltage is 1.6 V.

What is the input capacitance when all digital inputs are considered?

The input capacitance is 10 pF for all digital inputs.

What is the maximum operating temperature for the AD7124-8BBCPZ?

The maximum operating temperature is 125 °C.

What is the output capacitance?

The output capacitance is 10 pF.

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