AD7894 - ADI

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

Part No

AD7894
Manufacturer

ADI
ChipWorker Part#

CW983499379
Description

True Bipolar Input, 5V Single Supply, 14Bit, Serial 4.5µs ADC in 8Pin Package
Documentation

Datasheet

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AD7894 Specifications

Attribute	Attribute Value

Part Number	AD7894
Manufacturer	ADI
ChipWorker Part#	CW983499379
Documentation	Datasheet
Number of Pins	8 Pin
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Product Lifecycle Status	Unknown

Product Description

Product Details
The AD7894 is a fast, 14-Bit Analog-to-Digital Converter that operates from a single +5 V supply and is housed in a small 8-pin SOIC. The part contains a 5 µs successive approximation A/D converter, an on-chip track/hold amplifier, an on-chip clock and a high speed serial interface. Output data from the AD7894 is provided via a high speed, serial interface port. This two-wire serial interface has a serial clock input and a serial data output with the external serial clock accessing the serial data from the part.
In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the AD7894 is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio. The part accepts an analog input range of ±10 V (AD7894-10), ±2.5V (AD7894-3), 0 V to 2.5 V (AD7894-2), and operates from a single +5 V supply consuming only 20 mW typical.
The AD7894 features a high sampling rate mode and, for low power applications, a proprietary automatic power down mode where the part automatically goes into power down once conversion is complete and "wakes up" before the next conversion cycle. The part is available in a small outline IC (SOIC).
### Features and Benefits
Fast 14-Bit ADC with 5 µs Conversion Time
8-Lead SOIC Package
Single 5 V Supply Operation
High Speed, Easy-to-Use, Serial Interface
On-Chip Track/Hold Amplifier
High Input Impedance
Selection of Input Ranges:
±10 V for AD7894-10
±2.5 V for AD7894-3
0 V to +2.5 V for AD7894-2
Low Power: 20 mW Typ
Pin Compatible Upgrade of 12-Bit AD7895

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