data-converters

AD7682

Full part number: AD7682BCBZ-RL7

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 AD7682 and AD7689, which are 16-bit, 4-channel or 8-channel, 250 kSPS PulSAR ADCs. The document defines their scope as multichannel data acquisition for medical, battery-powered, and industrial applications. Key parameters include 16-bit resolution with no missing codes, ±0.4 LSB typical INL, 93.8 dB dynamic range, and a throughput of 250 kSPS. These devices operate on a single 2.3 V to 5.5 V supply with low power dissipation and feature an internal temperature sensor.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
output voltage 2.49 V 2.5 V 2.51 V 2.5 V at 25°C
output current — 300 µA —
supply voltage range 2.3 V — 5.5 V Specified performance; V
input offset voltage 1.8 V — — Specified performance; V
operating temperature -40 °C — 85 °C
power dissipation — 12.5 mW 18 mW VDD = 5 V, 250 kSPS throughput; mW
standby current — 50 nA — VDD and VIO = 5 V at 25°C; nA
adc resolution — 16 bit —
sample rate — 250 kHz —
settling time — 5 ms — Reference capacitor (CREF) = 10 µF
channel count — 4 —
03 — Alternatives

Closest matches to AD7682

MCP3002 1.6× lower adc resolution, 1.2× lower sample rate, 1.1× higher supply voltage range
MCP3004 1.6× lower adc resolution, 1.2× lower sample rate, 1.1× higher supply voltage range
ADS1255 8.3× lower sample rate, 3.0× higher power dissipation, 1.6× lower supply voltage range
ADS131M02 15.5× lower settling time, 7.8× lower sample rate, 2.0× lower power dissipation
ADS131M02IPWR 3.9× lower sample rate, 2.0× lower power dissipation, 1.9× higher operating temperature
PCM1808 5.2× lower sample rate, 5.0× higher power dissipation, 1.5× higher adc resolution
AD7190BRUZ 1.5× higher adc resolution, 1.4× higher operating temperature, 1.3× higher supply voltage range
AD7124-8BBCPZ 13.0× lower sample rate, 9.7× lower supply voltage range, 8.4× higher settling time
04 — FAQ

Frequently asked questions

What is the ADC resolution of the AD7682BCBZ-RL7?

The ADC resolution is 16 bit.

What is the channel count of the AD7682BCBZ-RL7?

The channel count is 4.

What is the input offset voltage under specified performance conditions?

The input offset voltage is 1.8 V.

What is the maximum operating temperature for the AD7682BCBZ-RL7?

The maximum operating temperature is 85 °C.

What is the output current of the AD7682BCBZ-RL7?

The output current is 300 µA.

What is the output voltage at 25°C?

The output voltage is 2.5 V at 25°C.

What is the power dissipation of the AD7682BCBZ-RL7 at VDD = 5 V and 250 kSPS throughput?

The power dissipation is 12.5 mW.

What is the sample rate of the AD7682BCBZ-RL7?

The sample rate is 250 kHz.

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