AD7923 - ADI

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

Part No

AD7923
Manufacturer

ADI
ChipWorker Part#

CW389426771
Description

4Channel, 200KSPS, 12Bit ADC with Sequencer in 16-Lead TSSOP
Documentation

Datasheet

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AD7923 Specifications

Attribute	Attribute Value

Part Number	AD7923
Manufacturer	ADI
ChipWorker Part#	CW389426771
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The AD7923 is a 12-bit, high speed, low power, 4-channel, successive-approximation (SAR) ADC. It operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 200 kSPS. It contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 8 MHz.
The conversion process and data acquisition are controlled by CS and the serial clock signal, allowing the device to easily interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and conversion is also initiated at this point.
The AD7923 uses advanced design techniques to achieve very low power dissipation at maximum throughput rates. At maximum throughput rates, it consumes 1.2 mA maximum with 3 V supplies and 1.5 mA maximum with 5 V supplies.
Through the configuration of the control register, the analog input range can be selected as 0 V to REFIN or 0 V to 2 × REFIN, with either straight binary or twos complement output coding. The AD7923 features four single-ended analog inputs with a channel sequencer to allow a preprogrammed selection of channels to be converted sequentially.
The conversion time for the AD7923 is determined by the serial clock, SCLK, frequency, since this is used as the master clock to control the conversion. The conversion time can be as short as 800 ns with a 20 MHz SCLK.
### Features and Benefits
Fast throughput rate: 200 kSPS
Specified for AVDD of 2.7 V to 5.25 V
Low power
3.6 mW max at 200 kSPS with 3 V supply
7.5 mW max at 200 kSPS with 5 V supply
4 (single-ended) inputs with sequencer
Wide input bandwidth
70 dB Min SNR at 50 kHz input frequency
Flexible power/serial clock speed management
No pipeline delays
Qualified for automotive applications
See data sheet for additional features
**AD7923-EP supports defense and aerospace applications (AQEC standard)**
Download AD7923-EP data sheet (pdf)
Military temperature range
(−55°C to +125°C)
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Enhanced product change notification
Qualification data available on request
V62/12647 DSCC Drawing Number

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