ADS131E08IPAGR from Texas Instruments, in a TQFP-64(10x10). 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	IN8N	input	Negative analog input for channel 8. Connect unused input pins to AVDD via a resistor.
2	IN8P	input	Positive analog input for channel 8. Connect unused input pins to AVDD via a resistor.
3	IN7N	input	Negative analog input for channel 7. Connect unused input pins to AVDD via a resistor.
4	IN7P	input	Positive analog input for channel 7. Connect unused input pins to AVDD via a resistor.
5	IN6N	input	Negative analog input for channel 6. Connect unused input pins to AVDD via a resistor.
6	IN6P	input	Positive analog input for channel 6. Connect unused input pins to AVDD via a resistor.
7	IN5N	input	Negative analog input for channel 5. Connect unused input pins to AVDD via a resistor.
8	IN5P	input	Positive analog input for channel 5. Connect unused input pins to AVDD via a resistor.
9	IN4N	input	Negative analog input for channel 4. Connect unused input pins to AVDD via a resistor.
10	IN4P	input	Positive analog input for channel 4. Connect unused input pins to AVDD via a resistor.
11	IN3N	input	Negative analog input for channel 3. Connect unused input pins to AVDD via a resistor.
12	IN3P	input	Positive analog input for channel 3. Connect unused input pins to AVDD via a resistor.
13	IN2N	input	Negative analog input for channel 2. Connect unused input pins to AVDD via a resistor.
14	IN2P	input	Positive analog input for channel 2. Connect unused input pins to AVDD via a resistor.
15	IN1N	input	Negative analog input for channel 1. Connect unused input pins to AVDD via a resistor.
16	IN1P	input	Positive analog input for channel 1. Connect unused input pins to AVDD via a resistor.
17	TESTP	bidirectional	Test signal, positive pin. See the Unused Inputs and Outputs section for unused pin handling.
18	TESTN	bidirectional	Test signal, negative pin. See the Unused Inputs and Outputs section for unused pin handling.
19	AVDD	power_in	Analog supply (3 V to 5 V unipolar, or ±2.5 V bipolar). Connect a 1-µF (or larger) capacitor to AVSS for each AVDD pin.
20	AVSS	power_in	Analog ground.
21	AVDD	power_in	Analog supply. Connect a 1-µF (or larger) capacitor to AVSS for each AVDD pin.
22	AVDD	power_in	Analog supply. Connect a 1-µF (or larger) capacitor to AVSS for each AVDD pin.
23	AVSS	power_in	Analog ground.
24	VREFP	bidirectional	Positive reference voltage. Connect a minimum 10-µF capacitor to VREFN.
25	VREFN	input	Negative reference voltage. Connect to AVSS.
26	VCAP4	output	Analog bypass capacitor. Connect a 1-µF capacitor to AVSS.
27	NC	unconnected	No connection; leave floating. May be tied to AVDD or AVSS through a 10-kΩ or higher resistor.
28	VCAP1	output	Analog bypass capacitor. Connect a 22-µF capacitor to AVSS.
29	NC	unconnected	No connection; leave floating. May be tied to AVDD or AVSS through a 10-kΩ or higher resistor.
30	VCAP2	output	Analog bypass capacitor. Connect a 1-µF capacitor to AVSS.
31	RESV1	input	Reserved for future use. Connect directly to DGND.
32	AVSS	power_in	Analog ground.
33	DGND	power_in	Digital ground.
34	DIN	input	Serial data input (SPI MOSI).
35	PWDN	input	Power-down; active low.
36	RESET	input	System reset; active low.
37	CLK	input	Master clock input. Connect to DGND if unused (internal oscillator selected via CLKSEL).
38	START	input	Start conversion. A rising edge (or held high) starts ADC conversions.
39	CS	input	Chip select; active low. Enables the SPI interface.
40	SCLK	input	Serial clock input (SPI SCLK).
41	DAISY_IN	input	Daisy-chain data input for cascading multiple devices on the SPI bus. Connect to DGND if unused.
42	GPIO1	bidirectional	General-purpose input/output pin 1. Connect to DGND via a 10-kΩ resistor if unused.
43	DOUT	output	Serial data output (SPI MISO).
44	GPIO2	bidirectional	General-purpose input/output pin 2. Connect to DGND via a 10-kΩ resistor if unused.
45	GPIO3	bidirectional	General-purpose input/output pin 3. Connect to DGND via a 10-kΩ resistor if unused.
46	GPIO4	bidirectional	General-purpose input/output pin 4. Connect to DGND via a 10-kΩ resistor if unused.
47	DRDY	output	Data ready; active low. Indicates new conversion data is available. Connect to DGND with a 10-kΩ resistor if unused.
48	DVDD	power_in	Digital core power supply (1.8 V to 3.6 V). Connect a 1-µF (or larger) capacitor to DGND for each DVDD pin.
49	DGND	power_in	Digital ground.
50	DVDD	power_in	Digital core power supply. Connect a 1-µF (or larger) capacitor to DGND for each DVDD pin.
51	DGND	power_in	Digital ground.
52	CLKSEL	input	Master clock select: chooses between the external CLK input and the internal oscillator.
53	AVSS1	power_in	Charge-pump analog ground.
54	AVDD1	power_in	Charge-pump analog supply. Connect a 1-µF (or larger) capacitor to AVSS1.
55	VCAP3	output	Analog bypass capacitor. Connect a parallel combination of 1-µF and 0.1-µF capacitors to AVSS.
56	AVDD	power_in	Analog supply. Connect a 1-µF (or larger) capacitor to AVSS for each AVDD pin.
57	AVSS	power_in	Analog ground.
58	AVSS	power_in	Analog ground.
59	AVDD	power_in	Analog supply. Connect a 1-µF (or larger) capacitor to AVSS for each AVDD pin.
60	OPAMPP	input	Op-amp noninverting input; leave floating and power the op amp down if unused.
61	OPAMPN	input	Op-amp inverting input; leave floating and power the op amp down if unused.
62	NC	unconnected	No connection; leave floating. May be tied to AVDD or AVSS through a 10-kΩ or higher resistor.
63	OPAMPOUT	output	Op-amp output; leave floating and power the op amp down if unused.
64	NC	unconnected	No connection; leave floating. May be tied to AVDD or AVSS through a 10-kΩ or higher resistor.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TQFP-64(10x10)
Category	Data Acquisition
Pins	64

Ordering variants

Same part, different packaging or reel option.

ADS131E08IPAGR

CAD (KiCad official)

Symbol: ADS131E08IPAGR
Footprint: Package_QFP:TQFP-64_10x10mm_P0.5mm
3D model: TQFP-64(10x10) (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (75 pp, sha256 be5dbbec27fb28d4, retrieved 2026-08-17, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF