AD7400A - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

AD7400A
Manufacturer

ADI
ChipWorker Part#

CW353151530
RoHS

Lead free / RoHS Compliant
Description

Isolated Sigma-Delta Modulator
Documentation

Datasheet

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AD7400A Specifications

Attribute	Attribute Value

Part Number	AD7400A
Manufacturer	ADI
ChipWorker Part#	CW353151530
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active
RoHS	RoHS Compliant

Product Description

Product Details
The AD7400A 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., _i_Coupler® technology. The AD7400A operates from a 5 V power supply and accepts a differential input signal of ±250 mV (±320 mV full scale). The analog input is sampled continuously by the analog modulator, eliminating the need for external sample-and-hold circuitry. The input information is contained in the output stream as a density of ones with a data rate of 10 MHz. The original information can be reconstructed with an appropriate digital filter. The serial I/O can use a 5 V or a 3 V supply (VDD2).
The serial interface is digitally isolated. High speed CMOS, combined with monolithic air core transformer technology, means the on-chip isolation provides outstanding performance characteristics superior to alternatives such as optocoupler devices. The part contains an on-chip reference and has an operating temperature range of −40°C to +125°C. The AD7400A is offered in an 8-lead surface-mount PDIP with gull wing leads and a 16-lead SOIC package.
**Applications**
AC motor controls
Shunt current monitoring
Data acquisition systems
Analog-to-digital and opto-isolator replacements
### Features and Benefits
10 MHz clock rate
Second-order modulator
16 bits no missing codes
±2 LSB INL typical at 16 bits
1.5 μV/°C typical offset drift
On-board digital isolator
8-lead surface-mount PDIP package with gull wing leads and 16-lead SOIC package
See Data Sheet for Additional Information

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