AD7401YRWZ-REEL7
数据手册.pdf隔离式Σ-Δ调制器 Isolated Sigma-Delta Modulator
GENERAL DESCRIPTION
The AD74011 is a second-order, Σ-Δ modulator that converts an analog input signal into a high speed, 1-bit data stream with on-chip digital isolation based on Analog Devices, Inc. iCoupler® technology. The AD7401 operates from a 5 V power supply and accepts a differential input signal of ±200 mV ±320 mV full scale. The analog input is continuously sampled by the analog modulator, eliminating the need for external sample-and-hold circuitry.
FEATURES
20 MHz maximum external clock rate
Second-order modulator
16 bits no missing codes
±2 LSB INL typical at 16 bits
3.5 μV/°C maximum offset drift
On-board digital isolator
On-board reference
Low power operation: 20 mA maximum at 5.25 V
−40°C to +105°C operating range
16-lead SOIC package
AD7400, internal clock version
Safety and regulatory approvals
UL recognition
3750 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
DIN EN 60747-5-2 VDE 0884 Part 2: 2003-01
DIN EN 60950 VDE 0805: 2001-12; EN 60950: 2000
VIORM= 891 V peak
APPLICATIONS
AC motor controls
Data acquisition systems
A/D + opto-isolator replacements
