AD7873ARUZ Resistive Touch Controllers by Analog Devices

Resistive Touch Controllers
Status: Production
Series: AD7873
RoHS: Compliant
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The AD7873 is a 12-bit successive approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The AD7873 operates from a single 2.2 V to 5.25 V supply, with a throughput rate of 125 kSPS.The AD7873 features direct battery measurement, temperature measurement, and touch pressure measurement. The AD7873 also has an on-board reference of 2.5 V that can be used for the auxiliary input, battery monitor, and temperature measurement modes. When not in use, the internal reference can be shut down to conserve power. An external reference can also be applied and varied from 1 V to VCC with an analog input range from 0 V to VREF. The device includes a shutdown mode that reduces the current consumption to less than 1 µA.The AD7873 features on-board switches. This, coupled with low power and high speed operation, makes the device ideal for battery-powered systems with resistive touch screens. The part is available in a 16-lead, 0.15 inch quarter size outline package (QSOP), a 16-lead, thin shrink small outline package (TSSOP), and a 16-lead, lead frame chip scale package (LFCSP).PRODUCT HIGHLIGHTS Ratiometric conversion mode available, eliminating errors due to on-board switch resistances. On-board temperature sensor: −40°C to +85°C. Battery monitor input. Touch pressure measurement capability. Low power consumption of 1.37 mW maximum with the reference off, or 2.41 mW typical with the reference on, at 125 kSPS and VCC at 3.6 V. Package options include 4 mm × 4 mm LFCSP. Analog input range from 0 V to VREF. Versatile serial I/O ports.

Where to Buy

Prices starting from US$2.99

Distributor Stock
Logo for Rochester Electronics
Rochester Electronics
from US$2.99
5,061
in stock
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Logo for Newark
Newark Electronics
from US$4.24
73
in stock
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Logo for element14 Singapore
element14
from US$4.60
73
in stock
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Logo for Farnell UK
Farnell
from US$4.15
73
in stock
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Logo for RS UK
RS
from US$7.53
1
in stock
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Logo for Richardson RFPD
Richardson RFPD
from US$3.76
0
in stock
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Features

4-Wire touch screen interface
On-chip temperature sensor: –40°C to +85°C
On-chip 2.5 V reference
Direct battery measurement (0 V to 6 V)
Touch pressure measurement
Specified throughput rate of 125 kSPS
Single supply, VCC of 2.2 V to 5.25 V
Ratiometric conversion
High speed serial interface
Programmable
8- or 12-bit resolution
One auxiliary analog input
Shutdown mode: 1 µA maximum
16-lead QSOP, TSSOP, and LFCSP packages

Last 6 months Inventory & Pricing History

Alternative Descriptions

Touch Screen Digitizer, 12Bit, Tssop | Newark Electronics
TOUCH SCREEN DIGITIZER, 12BIT, TSSOP | element14
AD7873ARUZ 12-bit touch screen digitizer | RS
2-Channel Single ADC SAR 125ksps 12-bit Serial 16-Pin TSSOP Tube | Richardson RFPD

Frequently Asked Questions

Where can I find additional details, specifications and documents for a AD7873ARUZ?

Additional datasheets, footprints and schematics for AD7873ARUZ are listed on our Part Details page. You can also find images and similar parts to AD7873ARUZ on this page.

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What category does AD7873ARUZ fall under?

The AD7873ARUZ is listed under Resistive Touch Controllers.

Can I view similar or alternative parts?

You can view similar parts to AD7873ARUZ when available in the Resistive Touch Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the AD7873ARUZ you can contact the distributor directly for product support, shipping queries etc.

Is the AD7873ARUZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for AD7873ARUZ have stock available?

Authorised distributors including Rochester Electronics, Newark Electronics, element14, Farnell and RS have stock available or on a lead time for AD7873ARUZ.

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