component
ADS7953SBRHBT
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TEXAS INSTRUMENTS Global Sourcing Parts, VQFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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Symbol & Footprint
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Contents
README
markdownADS7953SBRHBT
TEXAS INSTRUMENTS · Global Sourcing Parts · VQFN-32-EP(5x5)
ADS7953SBRHBT 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 | AGND | power_in | Analog ground pin for the analog supply and ADC circuitry. |
| 2 | MXO | output | Multiplexer output pin that feeds the ADC input path. |
| 3 | AINP | input | ADC input signal pin. |
| 4 | AINM | input | ADC input ground pin. |
| 5 | Ch15 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 6 | Ch14 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 7 | Ch13 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 8 | Ch12 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 9 | Ch11 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 10 | Ch10 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 11 | Ch9 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 12 | Ch8 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 13 | Ch7 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 14 | Ch6 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 15 | Ch5 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 16 | Ch4 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 17 | Ch3 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 18 | Ch2 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 19 | Ch1 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 20 | Ch0 | input | Analog-input channel for the multiplexer, with an absolute input range of AGND to +VA plus 0.3 V. |
| 21 | +VA | power_in | Analog power supply, 2.7 V to 5.25 V. |
| 22 | AGND | power_in | Analog ground pin. |
| 23 | CS | input | Chip-select input pin; active low. |
| 24 | SCLK | input | Serial clock input pin, up to 20 MHz. |
| 25 | SDI | input | Serial data input pin. |
| 26 | SDO | output | Serial data output pin. |
| 27 | BDGND | power_in | Digital ground pin. |
| 28 | +VBD | power_in | Digital I/O supply, 1.7 V to V(+VA). |
| 29 | GPIO0 | bidirectional | General-purpose input or output that also serves as the active high alarm output. |
| 30 | REFM | input | Reference ground pin. |
| 31 | REFP | input | Reference input pin, 2 V to 3 V with 2.5 V nominal. |
| 32 | +VA | power_in | Analog power supply, 2.7 V to 5.25 V. |
| 33 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TEXAS INSTRUMENTS |
| Package | VQFN-32-EP(5x5) |
| Category | Global Sourcing Parts |
| Pins | 33 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Integral linearity | INL | -1 | 0.5 | 1 | LSB | ADS795XSB | 12 |
| Differential linearity | DNL | -0.99 | 0.5 | 1 | LSB | ADS795XSB | 12 |
| Offset error | -3.5 | 1.1 | 3.5 | LSB | 12 | ||
| Gain error | -2 | 0.2 | 2 | LSB | Range 1 | 12 | |
| Total unadjusted error (TUE) | -2 | 2 | LSB | 12 | |||
| Absolute input range | -0.2 | V | Range 1; maximum printed as VREF + 0.2 | 12 | |||
| VIL logic level | VIL | 0.8 | V | +VBD = 5 V | 12 | ||
| VIL logic level | VIL | 0.4 | V | +VBD = 3 V | 12 | ||
| VOL logic level | VOL | 0.4 | V | At Isink = 200 μA | 12 | ||
| Supply current (normal mode) | 2.3 | 3 | mA | At +VA = 4.7 to 5.25 V and 1 MHz throughput | 13 | ||
| Supply current (normal mode, static state) | 1.1 | 1.5 | mA | At +VA = 4.7 to 5.25 V static state | 13 | ||
| High threshold range | 0 | 4092 | LSB | ALARM SETTING | 13 | ||
| Low threshold range | 0 | 4092 | LSB | ALARM SETTING | 13 | ||
| VREF reference voltage at REFP | VREF | 2 | 2.5 | 3 | V | 13 | |
| Analog power-supply voltage | V(+VA) | 2.7 | 3.3 | 5.25 | V | 10 | |
| Digital I/O-supply voltage | V(+VBD) | 1.7 | 3.3 | V | Maximum printed as V(+VA) | 10 | |
| Reference voltage | V(REF) | 2 | 2.5 | 3 | V | 10 | |
| SCLK frequency | ƒ(SCLK) | 20 | MHz | 10 | |||
| Operating temperature range | TA | -40 | 125 | °C | 10 | ||
| Analog power supply to AGND | +VA | -0.3 | 7 | V | +VA to AGND and +VBD to BDGND | 10 | |
| Digital input voltage to BDGND | -0.3 | 7 | V | 10 | |||
| AINP or CHn to AGND | -0.3 | V | Maximum printed as VA + 0.3 | 10 | |||
| Digital output to BDGND | -0.3 | V | Maximum printed as VA + 0.3 | 10 | |||
| Input current to any pin except supply pins | -10 | 10 | mA | 10 | |||
| Operating temperature | -40 | 125 | °C | 10 | |||
| Junction temperature (TJ Max) | TJ | 150 | °C | 10 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 10 | ||
| Junction-to-ambient thermal resistance (RHB 32-pin) | RθJA | 40.6 | °C/W | 11 | |||
| Junction-to-case (top) thermal resistance (RHB 32-pin) | RθJC(top) | 32.1 | °C/W | 11 | |||
| Junction-to-board thermal resistance (RHB 32-pin) | RθJB | 13.1 | °C/W | 11 | |||
| Junction-to-top characterization parameter (RHB 32-pin) | ψJT | 0.8 | °C/W | 11 | |||
| Junction-to-board characterization parameter (RHB 32-pin) | ψJB | 13 | °C/W | 11 | |||
| Junction-to-case (bottom) thermal resistance (RHB 32-pin) | RθJC(bot) | 5.7 | °C/W | 11 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | • A copper fill area underneath the device ties the AGND, BDGND, AINM, and REFM pins together. This | 52 |
CAD (KiCad official)
- Symbol:
ADS7953SBRHBT - 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:
ads7953sbrhbt-etched.step/ads7953sbrhbt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ads7953sbrhbt.step/ads7953sbrhbt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TEXAS INSTRUMENTS datasheet (87 pp, sha256
e7922065e4d1691d, retrieved 2026-11-02, tier: manufacturer) - 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).