ADS7830 8-Channel ADC
8-channel 8-bit ADC. Read up to 8 analog sensors (potentiometers, thermistors, light sensors, etc.) over I2C.
Say it to PAL
“Read the dial on channel 0.”
The code PAL writes
const v = await p.read('qwiic-ads7830', 'channel_0');
const percent = Math.round((v / 3.3) * 100);
p.log('Knob position: ' + percent + '%');“Tell me when any of its inputs change.”
The code PAL writes
const CHANNELS = [
'channel_0', 'channel_1', 'channel_2', 'channel_3',
'channel_4', 'channel_5', 'channel_6', 'channel_7',
] as const;
for (const ch of CHANNELS) {
p.onSensorChange('qwiic-ads7830', ch, (v) => {
p.log(ch + ': ' + v.toFixed(2) + 'V');
});
}
await p.waitUntilStopped();Good to know
- Input must not exceed 3.3V. Higher voltages will damage the IC.
- No differential mode — all channels are single-ended (relative to GND).
About it
The ADS7830 is an 8-channel 8-bit analog-to-digital converter with an I2C interface. Each channel reads 0-3.3V with 8-bit resolution (256 steps, ~13mV per step). Ideal for reading multiple analog sensors that lack I2C, such as potentiometers, thermistors, photoresistors, force-sensitive resistors, and analog outputs. Four configurable addresses allow up to 32 analog channels on one bus.
Where to buy
Facts
Tested
It is in our catalog, but nobody has checked it on a real board. It may not work yet. Its driver is written, but it has not been tested on hardware yet.
I2C address
The ADS7830 8-Channel ADC answers at I2C address 0x48. A jumper or pin moves it to 0x49 or 0x4A or 0x4B.
Current
1.4 mA
The catalog lists a typical draw of 1.4 mA for the ADS7830 ADC, copied from the maker’s description and not measured by Palpable.
Board size
30.48 × 17.78 mm
The ADS7830 ADC board measures 30.48 × 17.78 mm and stands 4.6 mm tall with its parts. It has 4 mounting holes. These dimensions are from the maker’s mechanical drawing.
Chip
ADS7830
Its sensor is the Texas Instruments ADS7830.
Free to reuse
Every fact here is open data under CC BY 4.0. Copy it into your own docs or code, and credit Palpable. Download it
This record was last changed on October 6, 2026.