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Contents

Pinout
Key specifications
CAD (KiCad official)
Provenance

README

markdown

ADS1256IDBR

Texas Instruments · Analog To Digital Converters (ADC) · SSOP-28-208mil

ADS1256IDBR from Texas Instruments, in a SSOP-28-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	AVDD	power_in	Analog supply input, 4.75V to 5.25V regulated
2	AGND	power_in	Analog ground reference
3	VREFN	input	Negative reference input, part of differential reference voltage
4	VREFP	input	Positive reference input, 0.5V to 2.5V differential from VREFN
5	AINCOM	input	Analog input common, used as reference for single-ended measurements
6	AIN0	input	Differential or single-ended analog input channel 0
7	AIN1	input	Differential or single-ended analog input channel 1
8	AIN2	input	Differential or single-ended analog input channel 2
9	AIN3	input	Differential or single-ended analog input channel 3
10	AIN4	input	Differential or single-ended analog input channel 4
11	AIN5	input	Differential or single-ended analog input channel 5
12	AIN6	input	Differential or single-ended analog input channel 6
13	AIN7	input	Differential or single-ended analog input channel 7
14	SYNC/PDWN	input	Active-low synchronization or power-down control input, 5V tolerant
15	RESET	input	Active-low asynchronous reset input, 5V tolerant
16	DVDD	power_in	Digital supply input, 1.8V to 3.6V regulated
17	DGND	power_in	Digital ground reference
18	XTAL2	passive	Crystal oscillator connection, connect 5-20pF capacitor to AGND or leave open
19	XTAL1/CLKIN	input	Crystal oscillator pin or external clock input, 5V tolerant, 2MHz to 10MHz
20	CS	input	Active-low chip select, 5V tolerant, can be tied permanently low
21	DRDY	output	Active-low data ready output, strobed when 24-bit conversion completes
22	DOUT	tri_state	Serial data output, 24-bit shift register with high impedance when deselected
23	DIN	input	Serial data input, 5V tolerant, clocked on SCLK falling edge
24	SCLK	input	Serial clock input, 5V tolerant, 200ns minimum pulse width, 0.1MHz to 10MHz
25	D0/CLKOUT	bidirectional	General-purpose digital I/O 0 or programmable clock output, configurable direction
26	D1	bidirectional	General-purpose digital I/O 1, configurable as input or output
27	D2	bidirectional	General-purpose digital I/O 2, configurable as input or output
28	D3	bidirectional	General-purpose digital I/O 3, configurable as input or output

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SSOP-28-208mil
Category	Data Acquisition
Pins	28

CAD (KiCad official)

Symbol: ADS1256IDBR
Footprint: Package_SO:SSOP-28_5.3x10.2mm_P0.65mm
3D model: SSOP-28-208mil (KiCad packages3D, STEP)
3D model files: ads1256idbr-etched.step / ads1256idbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads1256idbr.step / ads1256idbr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (49 pp, sha256 9da3323db162b593, retrieved 2026-09-21, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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