AD7921AUJZ-REEL7
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Analog Devices Inc. AD7921AUJZ-REEL7

Manufacturer No:
AD7921AUJZ-REEL7
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC ADC 12BIT SAR TSOT23-8
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD7921AUJZ-REEL7 is a 12-bit, high-speed, low-power, 2-channel successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component operates from a single power supply ranging from 2.35 V to 5.25 V and features a throughput rate of up to 250 kSPS. The AD7921 is designed for applications requiring high speed, low power consumption, and precise analog-to-digital conversion.

Key Specifications

Parameter Value Unit Test Conditions/Comments
Resolution 12-bit - -
Conversion Time 3.2 μs max μs 16 SCLK cycles with SCLK at 5 MHz
Throughput Rate 250 kSPS max kSPS -
Track-and-Hold Acquisition Time 290 ns max ns -
VDD 2.35 V to 5.25 V V Minimum and maximum power supply voltage
Normal Mode (Operational) Current 4 mA max (VDD = 2.35 V to 3.6 V), 2 mA max (VDD = 4.75 V to 5.25 V) mA fSAMPLE = 250 kSPS
Full Power-Down Mode (Static) Current 1 μA max μA SCLK on or off
Package Type 8-lead TSOT - -

Key Features

  • Fast throughput rate: up to 250 kSPS
  • Low power consumption: 4 mW typ at 250 kSPS with 3 V supplies, 13.5 mW typ at 250 kSPS with 5 V supplies
  • Wide input bandwidth: can handle input frequencies in excess of 6 MHz
  • No pipeline delays
  • High speed serial interface: SPI/QSPI/MICROWIRE/DSP compatible
  • Standby mode: 1 μA maximum current
  • Flexible power/serial clock speed management

Applications

  • Battery-powered systems
  • Personal digital assistants
  • Medical instruments
  • Mobile communications
  • Instrumentation and control systems
  • Data acquisition systems
  • High speed modems
  • Optical sensors

Q & A

  1. What is the resolution of the AD7921AUJZ-REEL7?

    The AD7921AUJZ-REEL7 has a resolution of 12 bits.

  2. What is the maximum throughput rate of the AD7921AUJZ-REEL7?

    The maximum throughput rate is up to 250 kSPS.

  3. What is the operating voltage range of the AD7921AUJZ-REEL7?

    The operating voltage range is from 2.35 V to 5.25 V.

  4. What is the typical power consumption at 250 kSPS with a 3 V supply?

    The typical power consumption is 4 mW.

  5. Does the AD7921AUJZ-REEL7 have pipeline delays?

    No, the AD7921AUJZ-REEL7 does not have pipeline delays.

  6. What types of serial interfaces are supported by the AD7921AUJZ-REEL7?

    The AD7921AUJZ-REEL7 supports SPI, QSPI, MICROWIRE, and DSP compatible serial interfaces.

  7. What is the maximum current in standby mode?

    The maximum current in standby mode is 1 μA.

  8. What is the package type of the AD7921AUJZ-REEL7?

    The package type is 8-lead TSOT.

  9. What are some common applications of the AD7921AUJZ-REEL7?

    Common applications include battery-powered systems, medical instruments, mobile communications, instrumentation and control systems, and data acquisition systems.

  10. How does the AD7921AUJZ-REEL7 manage power and serial clock speed?

    The AD7921AUJZ-REEL7 features flexible power and serial clock speed management.

Product Attributes

Number of Bits:12
Sampling Rate (Per Second):250k
Number of Inputs:2
Input Type:Single Ended
Data Interface:SPI, DSP
Configuration:MUX-S/H-ADC
Ratio - S/H:ADC:1:1
Number of A/D Converters:1
Architecture:SAR
Reference Type:Supply
Voltage - Supply, Analog:2.35V ~ 5.25V
Voltage - Supply, Digital:2.35V ~ 5.25V
Features:- 
Operating Temperature:-40°C ~ 85°C
Package / Case:SOT-23-8 Thin, TSOT-23-8
Supplier Device Package:TSOT-23-8
Mounting Type:Surface Mount
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Similar Products

Part Number AD7921AUJZ-REEL7 AD7922AUJZ-REEL7 AD7911AUJZ-REEL7 AD7921AUJ-REEL7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Obsolete
Number of Bits 12 12 10 12
Sampling Rate (Per Second) 250k 1M 250k 250k
Number of Inputs 2 2 2 -
Input Type Single Ended Single Ended Single Ended -
Data Interface SPI, DSP SPI, DSP SPI, DSP SPI, DSP
Configuration MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC -
Ratio - S/H:ADC 1:1 1:1 1:1 -
Number of A/D Converters 1 1 1 1
Architecture SAR SAR SAR -
Reference Type Supply Supply Supply -
Voltage - Supply, Analog 2.35V ~ 5.25V 2.35V ~ 5.25V 2.35V ~ 5.25V -
Voltage - Supply, Digital 2.35V ~ 5.25V 2.35V ~ 5.25V 2.35V ~ 5.25V -
Features - - - -
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Package / Case SOT-23-8 Thin, TSOT-23-8 SOT-23-8 Thin, TSOT-23-8 SOT-23-8 Thin, TSOT-23-8 SOT-23-8 Thin, TSOT-23-8
Supplier Device Package TSOT-23-8 TSOT-23-8 TSOT-23-8 TSOT-23-8
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount

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