深圳市中立信电子科技有限公司

AD7402-8BRIZ

模数转换器 - ADC Isolated 16Bit SigmaDelta ADC Int Clock

16-Bit, Isolated Sigma-Delta Modulator

GENERAL DESCRIPTION AD7402-8BRIZ

The AD74021 is a high performance, second-order, Σ-Δ modulator

that converts an analog input signal into a high speed, single-bit

data stream, with on-chip digital isolation based on Analog

Devices, Inc., iCoupler® technology. The AD7402 operates from

a 4.5 V to 5.5 V (VDD1) power supply and accepts a differential

input signal of ±250 mV (±320 mV full scale). The differential

input is ideally suited to shunt voltage monitoring in high

voltage applications where galvanic isolation is required.

FEATURES AD7402-8BRIZ

10 MHz internal clock rate

16 bits, no missing codes

Signal-to-noise ratio (SNR): 87 dB typical

Effective number of bits (ENOB): 13.5 bits typical

Typical offset drift vs. temperature: 1.7 μV/°C

On-board digital isolator

On-board reference

Full-scale analog input range: ±320 mV

−40°C to +105°C operating range

High common-mode transient immunity: >25 kV/μs

8-lead, wide-body SOIC, with increased creepage package

Slew rate limited output for low electromagnetic

interference (EMI)

Safety and regulatory approvals

UL recognition

5000 V rms for 1 minute per UL 1577

CSA Component Acceptance Notice 5A

VDE Certificate of Conformity

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12

VIORM = 1250 VPEAK

APPLICATIONS AD7402-8BRIZ

Shunt current monitoring

AC motor controls

Power and solar inverters

Wind turbine inverters

Data acquisition systems

Analog-to-digital and opto-isolator replacements