AD7877ACPZ-REEL7

$7.34

Description：IC SCREEN CNTRL 12BIT 32LFCSP
Series：-

SKU:1509d3f16753 Category: Touch Screen Controllers Brand: Analog Devices Inc.

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：IC SCREEN CNTRL 12BIT 32LFCSP
Series：-
Mfr：Analog Devices Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Touchscreen：4 Wire Resistive
Resolution (Bits)：12 b
Interface：SPI
Voltage Reference：External, Internal
Voltage - Supply：2.7V ~ 5.25V
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：32-VFQFN Exposed Pad, CSP
Supplier Device Package：32-LFCSP-VQ (5x5)
Current - Supply：1 µA
Grade：-
Qualification：-

Download product information

AD7877ACPZ-REEL7

Overview

The AD7877ACPZ-REEL7 is a 12-bit successive approximation analog-to-digital converter (ADC) designed for resistive touch screen digitization. It operates from a single 2.7 V to 5.25 V supply with a maximum throughput rate of 125 kSPS. The device integrates an on-chip 2.5 V reference, an 8-bit DAC, and an internal temperature sensor. It features a synchronous serial interface, three auxiliary analog inputs, two direct battery measurement channels, and four general-purpose I/O pins. The component is housed in a 32-lead LFCSP package.

Feature Summary

12-bit resolution with 125 kSPS throughput rate
Integrated 2.5 V reference, 8-bit DAC, and temperature sensor
Supports 4-wire touch screens with LCD noise reduction via STOPACQ pin
Includes two battery monitor inputs and three auxiliary analog inputs

Applications

Personal digital assistants
Smart hand-held devices
Touch screen monitors
Point-of-sale terminals
Medical devices

Procurement Notes

Verify the specific reel quantity associated with the REEL7 suffix against official Analog Devices documentation before ordering. Confirm that the LFCSP-32 package dimensions match the target PCB footprint. Ensure the host system voltage levels are compatible with the specified VDRIVE range for the serial interface logic.

Selection Notes

Select this component when a high-resolution ADC with integrated touch screen drivers and power management features is required. The AD7877 is suitable for battery-powered portable systems due to its low shutdown current of less than 1 µA. Consider the available GPIO and auxiliary input channels if additional monitoring functions beyond touch coordinates are needed.

Part Context

This part belongs to the AD7877 series of touch screen controllers manufactured by Analog Devices Inc. The REEL7 suffix indicates the tape and reel packaging format used for automated assembly. The ACPZ designation identifies the lead frame chip scale package variant within the product family.