ADS7822EC/250
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Texas Instruments ADS7822EC/250

Manufacturer No:
ADS7822EC/250
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC ADC 12BIT SAR 8VSSOP
Delivery:
Payment:
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Product Introduction

Overview

The ADS7822EC/250 is a 12-bit sampling analog-to-digital (A/D) converter produced by Texas Instruments. This device is characterized by its high-speed and ultra-low power consumption, making it ideal for various applications requiring precise analog-to-digital conversion. The ADS7822 operates over a supply range of 2.7V to 5.25V and features a pseudo-differential input, a synchronous serial interface, and the ability to set the reference voltage between 50mV and VCC. Its compact packaging options include mini-DIP-8, SO-8, and MSOP-8, enhancing its suitability for space-constrained designs.

Key Specifications

Parameter Condition Min Typ Max Units
Resolution 12 12 12 Bits
Sampling Rate 200kHz
Power Consumption at 200kHz 1.6mW
Power Consumption at 75kHz 0.54mW
Power Consumption at 7.5kHz 0.06mW
Power Down Current 3µA
Operating Temperature Range -40°C 85°C °C
Full-Scale Input Span +In - (-In) 0 VREF V
Absolute Input Range (+In) -0.2 VCC + 0.2 V
Absolute Input Range (-In) -0.2 +1.0 V
Input Capacitance 25 25 25 pF
Input Leakage Current ±1 ±1 ±1 µA
Integral Linearity Error -2 +2 LSB
Differential Linearity Error ±0.8 ±0.8 LSB

Key Features

  • High-speed sampling rate of up to 200kHz
  • Ultra-low power consumption: 1.6mW at 200kHz, 0.54mW at 75kHz, and 0.06mW at 7.5kHz
  • Power-down mode with a maximum current of 3µA
  • Pseudo-differential input
  • Synchronous serial interface
  • Reference voltage can be set between 50mV and VCC
  • Available in mini-DIP-8, SO-8, and MSOP-8 packages
  • Operating temperature range of -40°C to 85°C

Applications

  • Battery-operated systems
  • Remote data acquisition
  • Isolated data acquisition
  • Simultaneous sampling, multichannel systems

Q & A

  1. What is the resolution of the ADS7822EC/250?

    The ADS7822EC/250 has a resolution of 12 bits.

  2. What are the typical power consumption values for the ADS7822EC/250 at different sampling rates?

    The power consumption is 1.6mW at 200kHz, 0.54mW at 75kHz, and 0.06mW at 7.5kHz.

  3. What is the power-down current of the ADS7822EC/250?

    The power-down current is a maximum of 3µA.

  4. What types of packages are available for the ADS7822EC/250?

    The device is available in mini-DIP-8, SO-8, and MSOP-8 packages.

  5. What is the operating temperature range of the ADS7822EC/250?

    The operating temperature range is -40°C to 85°C.

  6. Can the reference voltage be adjusted for the ADS7822EC/250?

    Yes, the reference voltage can be set to any level between 50mV and VCC.

  7. What kind of input does the ADS7822EC/250 have?

    The device features a pseudo-differential input.

  8. What is the interface type of the ADS7822EC/250?

    The device has a synchronous serial interface.

  9. What are some common applications for the ADS7822EC/250?

    Common applications include battery-operated systems, remote data acquisition, isolated data acquisition, and simultaneous sampling in multichannel systems.

  10. How does the ADS7822EC/250 handle input capacitance and leakage current?

    The input capacitance is 25 pF, and the input leakage current is ±1 µA.

Product Attributes

Number of Bits:12
Sampling Rate (Per Second):200k
Number of Inputs:1
Input Type:Pseudo-Differential
Data Interface:SPI
Configuration:S/H-ADC
Ratio - S/H:ADC:1:1
Number of A/D Converters:1
Architecture:SAR
Reference Type:External
Voltage - Supply, Analog:2.7V ~ 3.6V, 5V
Voltage - Supply, Digital:2.7V ~ 3.6V, 5V
Features:- 
Operating Temperature:-40°C ~ 85°C
Package / Case:8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:8-VSSOP
Mounting Type:Surface Mount
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Similar Products

Part Number ADS7822EC/250 ADS7822E/250 ADS7822EB/250
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active
Number of Bits 12 12 12
Sampling Rate (Per Second) 200k 200k 200k
Number of Inputs 1 1 1
Input Type Pseudo-Differential Pseudo-Differential Pseudo-Differential
Data Interface SPI SPI SPI
Configuration S/H-ADC S/H-ADC S/H-ADC
Ratio - S/H:ADC 1:1 1:1 1:1
Number of A/D Converters 1 1 1
Architecture SAR SAR SAR
Reference Type External External External
Voltage - Supply, Analog 2.7V ~ 3.6V, 5V 2.7V ~ 3.6V, 5V 2.7V ~ 3.6V, 5V
Voltage - Supply, Digital 2.7V ~ 3.6V, 5V 2.7V ~ 3.6V, 5V 2.7V ~ 3.6V, 5V
Features - - -
Operating Temperature -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) 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package 8-VSSOP 8-VSSOP 8-VSSOP
Mounting Type Surface Mount Surface Mount Surface Mount

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