AD7457 - ADI

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

Part No

AD7457
Manufacturer

ADI
ChipWorker Part#

CW430804957
Description

Low Power, Pseudo Differential, 100KSPS 12Bit ADC in an 8-Lead SOT-23
Documentation

Datasheet

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AD7457 Specifications

Attribute	Attribute Value

Part Number	AD7457
Manufacturer	ADI
ChipWorker Part#	CW430804957
Documentation	Datasheet
	expand all
Product Lifecycle Status	Unknown

Product Description

Product Details
The AD7457 is a 12-bit, low power, successive-approximation (SAR) analog-to-digital converter that features a pseudo differential analog input. This part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 100 kSPS.
The part contains a low-noise, wide bandwidth, differential track and hold amplifier (T/H) which can handle input frequencies in excess of 1 MHz. The reference voltage for the AD7457 is applied externally to the VREF pin and can range from 100mV to VDD, depending on what suits the application.
The conversion process and data acquisition are controlled using and the serial clock allowing the device to interface with Microprocessors or DSPs.
The SAR architecture of these parts ensures that there are no pipeline delays.
The AD7457 uses advanced design techniques to achieve very low power dissipation.
### Features and Benefits
Specified for VDD of 2.7 V to
5.25 V
Very Low Power:
\- 0.9 mW max at 100 kSPS with VDD = 3V
\- 3 mW max at 100 kSPS with VDD = 5V
Pseudo Differential Analog Input
70 dB SINAD at 30 kHz Input Frequency
No Pipeline Delays
Serial Interface
\- SPI®/QSPI™/MICROWIRE™/DSP
Compatible
Automatic Power-Down Mode
8 Pin SOT-23

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