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ADS7843E/2K5 The ADS7843E/2K5 by Texas Instruments is a 12-bit touch screen controller ADC with SPI interface. It operates from 2.7V to 5V and features 125kHz conversion rate.
Mfr Part #:

ADS7843E/2K5

Available from 4 distributors
Mfr Name: Texas Instruments
Texas Instruments
The ADS7843E/2K5 by Texas Instruments is a 12-bit touch screen controller ADC with SPI interface. It operates from 2.7V to 5V and features 125kHz conversion rate.
✓ Total Stock: 9,036 pcs
$ Price Range: $1.07

ADS7843E/2K5 Available from 4 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
2,750 pcs
On Request
2750 pcs On Request 1 On Request On Request 20+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,709 pcs
On Request
2709 pcs On Request 1 On Request On Request 19+ On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,077 pcs
On Request
1077 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

ADS7843E/2K5 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Interface
Mounting Type
Operating Temperature
Power Dissipation
Resolution (Bits)
Supplier Device Package
Touchscreen
Voltage
Voltage Reference
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ADS7843E/2K5 Description

Short technical summary and product information.

The ADS7843E/2K5 is a 12-bit successive approximation Analog-to-Digital Converter (ADC) with an SPI serial interface, designed for touch screen applications. It integrates low on-resistance switches for driving 4-wire resistive touch screens and includes two auxiliary analog inputs. The device supports single supply operation from 2.7V to 5V and achieves a maximum conversion rate of 125 kHz with typical power dissipation of 750 µW.

 

Key specifications include programmable 8- or 12-bit resolution, external voltage reference, and full power-down control that reduces power dissipation to under 0.5 µW. The operating temperature range is -40°C to +85°C, making it suitable for industrial and portable environments.

 

The ADS7843E/2K5 is housed in a 16-pin SSOP package with a 3.90 mm width, surface mount mounting. The compact package and low power consumption make it ideal for battery-operated systems such as personal digital assistants, portable instruments, point-of-sale terminals, and touch screen monitors.

 

This part is RoHS3 compliant and REACH unaffected, with an MSL classification of Level 1 (unlimited). It is available in tape and reel packaging. The design is based on US Patent No. 6246394.

ADS7843E/2K5 Quick Information

Product Type: Touch Screen Controller
Canonical Name: ADS7843E/2K5 12-bit Touch Screen Controller
Subcategory: Touch Screen Controllers

ADS7843E/2K5 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ADS7843E/2K5 Estimated Pricing

Qty Low High
1+ $1.07 $1.07

Estimated market price range - modelled values for guidance only, not live distributor offers.

ADS7843E/2K5 Features

  • 12-bit ADC with SPI interface.
  • Supports 4-wire resistive touch screens.
  • Operates from 2.7V to 5V supply.
  • 125 kHz maximum conversion rate.
  • Two auxiliary analog inputs.

ADS7843E/2K5 Applications

  • Ideal for personal digital assistants.
  • Used in portable instruments and pagers.
  • Suitable for point-of-sale terminals.
  • Applied in touch screen monitors.

ADS7843E/2K5 FAQs

8 frequently asked questions generated from this part’s specifications.
What is the resolution of the ADS7843E/2K5?

12-bit, programmable to 8-bit.

What interface does this touch screen controller use?

SPI.

What is the supply voltage range?

2.7V to 5V.

What is the operating temperature range?

-40°C to 85°C.

What package is the ADS7843E/2K5 available in?

16-SSOP (0.154", 3.90mm Width).

What is the maximum conversion rate?

125 kHz.

What is the typical power dissipation?

750 µW at 125 kHz and 2.7V.

Is the ADS7843E/2K5 RoHS compliant?

It is marked as RoHS3 compliant, but this information is unverified.

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