AD7873ACP-REEL7
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Analog Devices Inc. AD7873ACP-REEL7

Manufacturer No:
AD7873ACP-REEL7
Manufacturer:
Analog Devices Inc.
Package:
Bulk
Description:
IC ADC 12BIT TOUCHSCREEN 16LFCSP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD7873ACP-REEL7, produced by Analog Devices Inc., is a precision touch screen controller designed for 4-wire resistive touchscreens. This component provides accurate measurement and touch pressure detection, making it ideal for a variety of applications requiring high-resolution touchscreen interaction. The AD7873 operates from a single supply voltage range of 2.2V to 5.25V and features an on-board 2.5V reference voltage, which can be used internally or externally. It also includes on-chip temperature measurement and direct battery measurement capabilities, enhancing its versatility and reliability in diverse environments.

Key Specifications

ParameterValueUnit
Resolution12-bit
InterfaceSerial
Supply Voltage2.2V to 5.25VV
Operating Temperature-40°C to 85°C°C
Package16-lead QSOP, TSSOP, or LFCSP
Throughput Rate125 kSPS
Voltage ReferenceInternal (2.5V) and External

Key Features

  • High-resolution 12-bit successive approximation ADC for precise touchscreen interaction
  • On-board 2.5V reference voltage for reduced external component count
  • On-chip temperature sensor and direct battery measurement capabilities
  • Touch pressure measurement and single-ended or differential input capability
  • Low voltage operation supporting portable and battery-powered devices
  • Robust against ESD events and long operational life span
  • High-speed serial interface for efficient data transfer
  • Programmable 8-bit or 12-bit resolution and shutdown mode for power conservation

Applications

  • Point-of-sale terminals
  • Personal digital assistants and smart hand-held devices
  • Touch screen monitors
  • Portable instrumentation
  • Vehicle navigation systems
  • Industrial controls

Q & A

  1. What is the primary function of the AD7873ACP-REEL7? The AD7873ACP-REEL7 is a precision touch screen controller for 4-wire resistive touchscreens, providing accurate measurement and touch pressure detection.
  2. What is the resolution of the AD7873? The AD7873 has a 12-bit resolution.
  3. What is the supply voltage range for the AD7873? The supply voltage range is from 2.2V to 5.25V.
  4. What types of packages are available for the AD7873? The AD7873 is available in 16-lead QSOP, TSSOP, or LFCSP packages.
  5. Does the AD7873 support temperature measurement? Yes, the AD7873 includes an on-chip temperature sensor.
  6. What is the throughput rate of the AD7873? The throughput rate is 125 kSPS.
  7. Is the AD7873 robust against ESD events? Yes, the AD7873 is robust against ESD events.
  8. What are some common applications of the AD7873? Common applications include point-of-sale terminals, personal digital assistants, touch screen monitors, and industrial controls.
  9. Can the AD7873 be used in industrial environments? Yes, the AD7873 has an extended temperature range suitable for industrial applications.
  10. How does the AD7873 conserve power? The AD7873 features a shutdown mode that reduces current consumption to less than 1 µA when not in use.

Product Attributes

Touchscreen:- 
Resolution (Bits):12 b
Interface:- 
Voltage Reference:External, Internal
Voltage - Supply:2.2V ~ 5.25V
Current - Supply:- 
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:16-VQFN Exposed Pad, CSP
Supplier Device Package:16-LFCSP-VQ (4x4)
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Similar Products

Part Number AD7873ACP-REEL7 AD7877ACP-REEL7 AD7873ACPZ-REEL7
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Obsolete Obsolete Obsolete
Touchscreen - - 4 Wire Resistive
Resolution (Bits) 12 b 12 b 12 b
Interface - - Serial
Voltage Reference External, Internal External, Internal External, Internal
Voltage - Supply 2.2V ~ 5.25V 2.7V ~ 5.25V 2.2V ~ 5.25V
Current - Supply - 1 µA -
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 16-VQFN Exposed Pad, CSP 32-VFQFN Exposed Pad, CSP 16-VQFN Exposed Pad, CSP
Supplier Device Package 16-LFCSP-VQ (4x4) 32-LFCSP-VQ (5x5) 16-LFCSP-VQ (4x4)

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