AD7843
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AD7843

Touch Screen Digitizer

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 6
1ku List Price Starting From $1.47
Features
  • 4-wire touch screen interface
  • Specified throughput rate of 125 kSPS
  • Low power consumption: 1.37 mW max at 125 kSPS with VCC = 3.6 V
  • Single supply, VCC of 2.2 V to 5.25 V
  • Ratiometric conversion
  • High speed serial interface
  • Programmable 8-bit or 12-bit resolution
  • 2 auxiliary analog inputs
  • Shutdown mode: 1 µA max
  • 16-lead QSOP and TSSOP packages
Additional Details
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The AD7843 is a 12-bit successive-approximation ADC with a synchronous serial interface and low on resistance switches for driving touch screens. The part operates from a single 2.2 V to 5.25 V power supply and features throughput rates greater than 125 kSPS. The external reference applied to the AD7843 can be varied from 1 V to +VCC, while the analog input range is from 0 V to VREF. The device includes a shutdown mode that reduces the current consumption to less than 1 µA. This part is available in a 16-lead 0.15" Quarter Size Outline (QSOP) package and a 16-lead Thin Shrink Small Outline (TSSOP) package. 

Also see the AD7843 sister part, which is the AD7873. This part is similar to the AD7843 but has added functionality such as an on-chip temperature sensor (-40°C to + 85°C), on-chip 2.5 V reference and direct battery and touch-pressure measurement.

Part Models 6
1ku List Price Starting From $1.47

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD51/064Z-0REEL
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AD7843ARQZ
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AD7843ARQZ-REEL
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AD7843ARQZ-REEL7
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AD7843ARUZ
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AD7843ARUZ-REEL7
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Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

Amkor Philippines as an Alternate Site for TSSOP_4.4

Jan 16, 2012

- 11_0244

Halogen Free Material Change for Select TSSOP Products Assembled at Amkor

AD51/064Z-0REEL

AD7843ARUZ

PRODUCTION

AD7843ARUZ-REEL7

PRODUCTION

Aug 26, 2010

- 10_0001

Halogen Free Material Change for QSOP Products

AD7843ARQZ

PRODUCTION

AD7843ARQZ-REEL

PRODUCTION

AD7843ARQZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

AD7843ARQZ

PRODUCTION

AD7843ARQZ-REEL

PRODUCTION

AD7843ARQZ-REEL7

PRODUCTION

AD7843ARUZ

PRODUCTION

AD7843ARUZ-REEL7

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

arrow down

Amkor Philippines as an Alternate Site for TSSOP_4.4

Jan 16, 2012

- 11_0244

arrow down

Halogen Free Material Change for Select TSSOP Products Assembled at Amkor

AD51/064Z-0REEL

AD7843ARUZ

PRODUCTION

AD7843ARUZ-REEL7

PRODUCTION

Aug 26, 2010

- 10_0001

arrow down

Halogen Free Material Change for QSOP Products

AD7843ARQZ

PRODUCTION

AD7843ARQZ-REEL

PRODUCTION

AD7843ARQZ-REEL7

PRODUCTION

Feb 8, 2010

- 04_0080

arrow down

Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland.

AD7843ARQZ

PRODUCTION

AD7843ARQZ-REEL

PRODUCTION

AD7843ARQZ-REEL7

PRODUCTION

AD7843ARUZ

PRODUCTION

AD7843ARUZ-REEL7

PRODUCTION

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