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ADS1148IRHBR

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Texas Instruments Analog To Digital Converters (ADCs), VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ADS1148IRHBR

Texas Instruments · Analog To Digital Converters (ADCs) · VQFN-32-EP(5x5)

ADS1148IRHBR from Texas Instruments, in a VQFN-32-EP(5x5). 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 DIN input Serial data input, shifted into the device on the falling edge of SCLK.
2 SCLK input Serial clock input for the SPI-compatible interface (Schmitt-trigger input).
3 NC unconnected No internal connection; connect pin to AVSS or leave floating.
4 NC unconnected No internal connection; connect pin to AVSS or leave floating.
5 NC unconnected No internal connection; connect pin to AVSS or leave floating.
6 NC unconnected No internal connection; connect pin to AVSS or leave floating.
7 DVDD power_in Digital power supply; connect a 0.1-µF capacitor to DGND (digital supply range 2.7 V to 5.25 V).
8 DGND power_in Digital ground.
9 CLK input External clock input; tie to DGND to activate the internal oscillator.
10 RESET input Reset input, active low.
11 REFP0/GPIO0 bidirectional Positive external reference input 0, or general-purpose digital input/output pin 0.
12 REFN0/GPIO1 bidirectional Negative external reference input 0, or general-purpose digital input/output pin 1.
13 REFP1 input Positive external reference input 1.
14 REFN1 input Negative external reference input 1.
15 VREFOUT output Positive internal reference voltage output; connect a capacitor in the range of 1 µF to 47 µF to VREFCOM.
16 VREFCOM output Negative internal reference voltage output; connect to AVSS when using a unipolar supply or to the mid-voltage ground when using a bipolar supply.
17 AIN0/IEXC input Analog input 0, optional excitation current output.
18 AIN1/IEXC input Analog input 1, optional excitation current output.
19 AIN4/IEXC/GPIO4 bidirectional Analog input 4, optional excitation current output, or general-purpose digital input/output pin 4.
20 AIN5/IEXC/GPIO5 bidirectional Analog input 5, optional excitation current output, or general-purpose digital input/output pin 5.
21 AIN6/IEXC/GPIO6 bidirectional Analog input 6, optional excitation current output, or general-purpose digital input/output pin 6.
22 AIN7/IEXC/GPIO7 bidirectional Analog input 7, optional excitation current output, or general-purpose digital input/output pin 7.
23 AIN2/IEXC/GPIO2 bidirectional Analog input 2, optional excitation current output, or general-purpose digital input/output pin 2.
24 AIN3/IEXC/GPIO3 bidirectional Analog input 3, optional excitation current output, or general-purpose digital input/output pin 3.
25 IEXC2 output Excitation current output 2 (IDAC output).
26 IEXC1 output Excitation current output 1 (IDAC output).
27 AVSS power_in Negative analog power supply.
28 AVDD power_in Positive analog power supply; connect a 0.1-µF capacitor to AVSS (analog supply 2.7 V to 5.25 V unipolar, or ±2.5 V bipolar).
29 START input Conversion start input.
30 CS input Chip select, active low.
31 DRDY output Data ready output, active low.
32 DOUT/DRDY output Serial data output, or data output combined with data ready; goes high-impedance when CS is high.
33 Thermal Pad passive Thermal pad; connect pin to AVSS or leave floating.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-32-EP(5x5)
Category ADC/DAC/Data Conversion
Pins 33

CAD (KiCad official)

  • Symbol: ADS1148IRHBR
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: VQFN-32-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: ads1148irhbr-etched.step / ads1148irhbr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ads1148irhbr.step / ads1148irhbr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (100 pp, sha256 45e0fc75c85fcf9e, retrieved 2026-10-10, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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