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AD7879-1WARUZ-RL7

Public Made by Adom

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Analog Devices Touch Screen Controllers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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AD7879-1WARUZ-RL7

Analog Devices · Touch Screen Controllers · TSSOP-16

AD7879-1WARUZ-RL7 from Analog Devices, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VCC/REF power_in Power supply input and ADC reference, operating from 1.6 V to 3.6 V.
2 NC unconnected No connect.
3 X+ bidirectional Touch screen input channel.
4 Y+ bidirectional Touch screen input channel.
5 X− bidirectional Touch screen input channel.
6 Y− bidirectional Touch screen input channel.
7 NC unconnected No connect.
8 ADD1 input I2C address bit 1 for the AD7879-1W, tied high or low to determine the device address.
9 GND power_in Ground reference point for all circuitry; analog input signals and any external reference should be referred to this voltage.
10 NC unconnected No connect.
11 SCL input Serial interface clock input.
12 SDA bidirectional I2C serial data input and output for the AD7879-1W.
13 PENIRQ/INT/DAV output Active-low interrupt output with internal 50 kΩ pull-up, asserted on screen touch (PENIRQ), when a measurement exceeds the programmed limits (INT), or when new data is available (DAV).
14 AUX/VBAT/GPIO bidirectional Programmable as an auxiliary ADC input (AUX), a battery measurement ADC input (VBAT), or a general-purpose digital input/output (GPIO).
15 NC unconnected No connect.
16 ADD0 input I2C address bit 0 for the AD7879-1W, tied high or low to determine the device address.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package TSSOP-16
Category Data Converters
Pins 16

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC 1.6 3.6 V 3
Operating temperature TA -40 85 °C 3
No Missing Codes 11 12 Bits 3
Integral Nonlinearity INL 3 LSB LSB size = 390 µV; ±3 printed 3
Negative DNL DNL -0.99 LSB LSB size = 390 µV 3
Positive DNL DNL 2 LSB LSB size = 390 µV 3
Offset Error 2 6 LSB ±2 and ±6 printed 3
Gain Error 4 LSB ±4 printed 3
Noise 70 µV rms 3
Power Supply Rejection 60 dB 3
Internal Clock Frequency 2 MHz 3
Internal Clock Accuracy 1.8 2.2 MHz 3
On Resistance Y+, X+ RON 6 Ω Y+, X+ 3
On Resistance Y−, X− RON 5 Ω Y−, X− 3
Analog Input Voltage Range 0 V 0 to VCC printed 3
Analog Input DC Leakage Current 0.1 µA ±0.1 printed 3
Analog Input Capacitance 30 pF 3
Analog Input Accuracy 0.3 % 3
Temperature Measurement Range -40 85 °C 3
Temperature Resolution 0.3 °C 3
Temperature Accuracy 2 °C Calibrated at 25°C; ±2 printed 3
Battery Monitor Input Voltage Range 0.5 5 V 3
Battery Monitor Input Impedance 16 kΩ 3
Battery Monitor Accuracy 2 5 % Uncalibrated accuracy 3
Logic Input Current IIN 0.01 µA VIN = 0 V or VCC 3
Logic Input Capacitance CIN 10 pF 3
Output Low Voltage VOL 0.4 V 3
Floating-State Leakage Current 0.1 µA ±0.1 printed 3
Floating-State Output Capacitance 5 pF 3
Conversion Time 9.5 µs Including 2 µs of acquisition time, MAV filter off 3
Throughput Rate 105 kSPS 3
SCL clock frequency fSCL 400 kHz 5
Start condition hold time t1 0.6 µs tHD;STA 5
Clock low period t2 1.3 µs tLOW 5
Clock high period t3 0.6 µs tHIGH 5
Data setup time t4 100 ns tSU;DAT 5
Data hold time t5 300 ns tHD;DAT 5
Stop condition setup time t6 0.6 µs tSU;STO 5
Start condition setup time t7 0.6 µs tSU;STA 5
Bus-free time between stop and start t8 1.3 µs tBUF 5
Clock/data rise time tR 300 ns 5
Clock/data fall time tF 300 ns 5
VCC to GND VCC -0.3 3.6 V TA = 25°C 6
AUX/VBAT to GND -0.3 5 V TA = 25°C 6
Input Current to Any Pin Except Supplies 10 mA Transient currents up to 100 mA do not cause SCR latch-up 6
Storage Temperature Range -65 150 °C 6
Junction Temperature TJ 150 °C 6
Power Dissipation TSSOP 577.2 mW 4-Layer Board 6
Lead Temperature (Soldering 10 sec) 300 °C 6
Thermal resistance 16-Lead TSSOP θJA 112.6 °C/W 4-layer board 6

CAD (KiCad official)

  • Symbol: AD7879-1WARUZ-RL7
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: ad7879-1waruz-rl7-etched.step / ad7879-1waruz-rl7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ad7879-1waruz-rl7.step / ad7879-1waruz-rl7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (40 pp, sha256 0c946639855c2c1c, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF