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AD7921AUJZ-R2 12-Bit successive approximation ADC with 2 single-ended inputs, 250 kSPS throughput, and SPI/DSP serial interface. Operates from 2.35V to 5.25V, typical power dissipation 4 mW at 3V.
Mfr Part #:

AD7921AUJZ-R2

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
12-Bit successive approximation ADC with 2 single-ended inputs, 250 kSPS throughput, and SPI/DSP serial interface. Operates from 2.35V to 5.25V, typical power dissipation 4 mW at 3V.
✓ Total Stock: 205 pcs

AD7921AUJZ-R2 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Husky International Electronic ✓
Non-Authorised Inventory information
201 pcs
On Request
201 pcs On Request 1 On Request On Request N/A On Request On Request
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
4 pcs
On Request
4 pcs On Request 1 On Request On Request On Request On Request On Request
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AD7921AUJZ-R2 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Architecture
Configuration
Data Interface
Input Type
Mounting Type
Number of A
Number of Bits
Number of Inputs
Operating Temperature
Ratio
Reference Type
SVHC Present
Sampling Rate (Per Second)
Supplier Device Package
Voltage
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AD7921AUJZ-R2 Description

Short technical summary and product information.

The AD7921AUJZ-R2 is a 12-bit, high speed, low power, successive approximation analog-to-digital converter (ADC) from Analog Devices. It features a 2-channel multiplexer with sample-and-hold, capable of sampling rates up to 250 kSPS. The device operates from a single 2.35V to 5.25V supply and consumes only 4 mW typical at 3V (250 kSPS) and 13.5 mW at 5V. It achieves a minimum signal-to-noise ratio of 71 dB at 100 kHz input frequency, making it suitable for applications requiring wide input bandwidth. The converter uses a supply voltage reference and offers a high-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSPs.

 

The AD7921 is available in a compact 8-lead TSOT-23-8 package for surface mount assembly. It operates over the industrial temperature range of -40°C to +85°C. The part is designed for battery-powered systems, medical instruments, and data acquisition systems where low power and small size are critical.

AD7921AUJZ-R2 Quick Information

Product Type: Analog to Digital Converter (ADC)
Canonical Name: AD7921AUJZ-R2 Analog to Digital Converter, 12-Bit, SAR, 250 kSPS, 2-Channel, Single Ended, SPI/DSP, SOT-23-8
Subcategory: SAR ADC

AD7921AUJZ-R2 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AD7921AUJZ-R2 Features

  • 12-bit resolution with 250 kSPS throughput.
  • Low power: 4 mW typ at 3V operation.
  • Wide supply range: 2.35V to 5.25V.
  • High-speed SPI/DSP serial interface.
  • Compact TSOT-23-8 surface mount package.

AD7921AUJZ-R2 Applications

  • Ideal for battery-powered portable devices.
  • Used in medical instrumentation systems.
  • Suitable for data acquisition systems.
  • Applied in high-speed modem circuits.

AD7921AUJZ-R2 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the resolution of the AD7921AUJZ-R2?

12 bits.

What is the maximum sampling rate?

250 kSPS.

What is the supply voltage range?

2.35V to 5.25V.

How many input channels does it have?

2 single-ended inputs.

What is the package type?

TSOT-23-8 (SOT-23-8 Thin).

What is the operating temperature range?

-40°C to +85°C.

Is the AD7921AUJZ-R2 RoHS compliant?

RoHS3 compliant (unverified, low confidence).

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