component
ADS1148IRHBR
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADCs), VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownADS1148IRHBR
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads1148irhbr.step/ads1148irhbr.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).