AD7940BRM
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Analog Devices Inc. AD7940BRM

Manufacturer No:
AD7940BRM
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC ADC 14BIT SAR 8MSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
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Product Introduction

Overview

The AD7940BRM, produced by Analog Devices Inc., is a high-performance, 14-bit successive approximation analog-to-digital converter (ADC). It is notable for being the first 14-bit ADC available in a compact 6-lead SOT-23 package, as well as an 8-lead MSOP package. This ADC is designed to offer high throughput rates with very low power consumption, making it an ideal choice for applications requiring precise and efficient analog-to-digital conversion.

Key Specifications

Parameter Value Unit
Resolution 14 bits
Throughput Rate 100 kSPS (max)
Supply Voltage 2.50 V to 5.5 V V
Power Consumption (Normal Mode, VDD = 5.5 V) 4.8 mA (max), 3.3 mA (typ) mA
Power Consumption (Normal Mode, VDD = 3.6 V) 1.9 mA (max), 1.29 mA (typ) mA
Power Consumption (Full Power-Down Mode, VDD = 5.5 V) 0.5 µA (max) µA
Power Consumption (Full Power-Down Mode, VDD = 3.6 V) 0.3 µA (max) µA
Analog Input Range 0 V to VDD V
Serial Clock Frequency Up to 2.5 MHz Hz
Package Type 6-lead SOT-23, 8-lead MSOP

Key Features

  • High throughput rate of up to 100 kSPS with a 2.5 MHz clock.
  • Low power consumption, with typical current draw of 3.3 mA at VDD = 5.5 V and 1.29 mA at VDD = 3.6 V.
  • Compact packaging in 6-lead SOT-23 and 8-lead MSOP, offering significant space-saving advantages.
  • Successive approximation ADC architecture with accurate control of the sampling instant via the CS input.
  • On-chip track-and-hold ADC and serial interface.
  • Wide analog input range from 0 V to VDD.
  • Low power-down current of 0.5 µA (max) at VDD = 5.5 V and 0.3 µA (max) at VDD = 3.6 V.

Applications

The AD7940BRM is suitable for a variety of applications that require high-resolution analog-to-digital conversion with low power consumption. These include:

  • Medical devices: For precise measurement and monitoring in medical equipment.
  • Industrial automation: In control systems, data acquisition, and monitoring applications.
  • Aerospace and defense: For systems requiring high reliability and low power consumption.
  • Portable electronics: Where space and power efficiency are critical.
  • Data acquisition systems: For high-speed and accurate data conversion.

Q & A

  1. What is the resolution of the AD7940BRM ADC?

    The AD7940BRM has a resolution of 14 bits.

  2. What is the maximum throughput rate of the AD7940BRM?

    The maximum throughput rate is 100 kSPS.

  3. What are the available package types for the AD7940BRM?

    The AD7940BRM is available in 6-lead SOT-23 and 8-lead MSOP packages.

  4. What is the analog input range of the AD7940BRM?

    The analog input range is from 0 V to VDD.

  5. How much power does the AD7940BRM consume in normal mode at VDD = 5.5 V?

    The power consumption in normal mode at VDD = 5.5 V is typically 3.3 mA and up to 4.8 mA maximum.

  6. What is the power consumption in full power-down mode at VDD = 3.6 V?

    The power consumption in full power-down mode at VDD = 3.6 V is up to 0.3 µA maximum.

  7. What is the maximum serial clock frequency for the AD7940BRM?

    The maximum serial clock frequency is up to 2.5 MHz.

  8. Is the AD7940BRM suitable for medical device applications?

    Yes, the AD7940BRM is suitable for medical device applications due to its high resolution and low power consumption.

  9. Can the AD7940BRM be used in industrial automation systems?

    Yes, the AD7940BRM can be used in industrial automation systems for control and monitoring applications.

  10. What are the typical applications of the AD7940BRM?

    The AD7940BRM is typically used in medical devices, industrial automation, aerospace and defense, portable electronics, and data acquisition systems.

Product Attributes

Number of Bits:14
Sampling Rate (Per Second):100k
Number of Inputs:1
Input Type:Single Ended
Data Interface:SPI, DSP
Configuration:S/H-ADC
Ratio - S/H:ADC:1:1
Number of A/D Converters:1
Architecture:SAR
Reference Type:Supply
Voltage - Supply, Analog:2.5V ~ 5.5V
Voltage - Supply, Digital:2.5V ~ 5.5V
Features:- 
Operating Temperature:-40°C ~ 85°C
Package / Case:8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:8-MSOP
Mounting Type:Surface Mount
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Similar Products

Part Number AD7940BRM AD7940BRMZ AD7942BRM AD7946BRM AD7920BRM
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Obsolete Active Obsolete Obsolete Obsolete
Number of Bits 14 14 14 14 12
Sampling Rate (Per Second) 100k 100k 250k 500k 250k
Number of Inputs 1 1 - - -
Input Type Single Ended Single Ended - - -
Data Interface SPI, DSP SPI, DSP SPI, DSP SPI, DSP SPI, DSP
Configuration S/H-ADC S/H-ADC - - -
Ratio - S/H:ADC 1:1 1:1 - - -
Number of A/D Converters 1 1 1 1 1
Architecture SAR SAR - - -
Reference Type Supply Supply - - -
Voltage - Supply, Analog 2.5V ~ 5.5V 2.5V ~ 5.5V - - -
Voltage - Supply, Digital 2.5V ~ 5.5V 2.5V ~ 5.5V - - -
Features - - - - -
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-MSOP 8-MSOP 10-MSOP 10-MSOP 8-MSOP
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount

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