Support software
TLV320ADC3140
Quad-channel 768-kHz Burr-Brown™ audio analog-to-digital converter (ADC) with 106-dB SNR
Data sheet
TLV320ADC3140
- Multichannel high-performance ADC:
- 4-channel analog microphones or line-in,
- 8-channel digital PDM microphones, or
- Combination of analog and digital microphones
- ADC line and microphone differential input performance:
- Dynamic range (DR): 106 dB
- THD+N: –98 dB
- Dynamic range (DR): 106 dB
- ADC channel summing mode, DR performance:
- 109-dB, 2-channel summing
- 112-dB, 4-channel summing
- ADC input voltage:
- Differential, 2-VRMS full-scale inputs
- Single-ended, 1-VRMS full-scale inputs
- ADC sample rate (fS) = 8 kHz to 768 kHz
- Programmable channel settings:
- Channel gain: 0 dB to 42 dB, 1-dB steps
- Digital volume control: –100 dB to 27 dB
- Gain calibration with 0.1-dB resolution
- Phase calibration with 163-ns resolution
- Programmable microphone bias or supply voltage generation
- Low-latency signal processing filter selection
- Programmable HPF and biquad digital filters
- Automatic gain controller (AGC)
- I2C or SPI controls
- Integrated high-performance audio PLL
- Automatic clock divider setting configurations
- Audio serial data interface:
- Format: TDM, I2S, or left-justified (LJ)
- Word length: 16 bits, 20 bits, 24 bits, or 32 bits
- Master or slave interface
- Single-supply operation: 3.3 V or 1.8 V
- I/O-supply operation: 3.3 V or 1.8 V
- Power consumption for 1.8-V AVDD supply:
- 8.5 mW/channel at 16-kHz sample rate
- 9.2 mW/channel at 48-kHz sample rate
The TLV320ADC3140 is a Burr-Brown™ high-performance, audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channels or eight digital channels for the pulse density modulation (PDM) microphone input. The device supports line and microphone inputs, and allows for both single-ended and differential input configurations. The device integrates programable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for sample rates up to 768 kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI interface. These integrated high-performance features, along with the ability to be powered from a single-supply of 3.3 V or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.
The TLV320ADC3140 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.
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Technical documentation
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Evaluation board
ADC3140EVM-PDK — TLV320ADC3140 quad-channel 768-kHz Burr-Brown™ audio ADC evaluation module
The ADC3140EVM-PDK is an evaluation module (EVM) that allows the user to test the capabilities of the TLV320ADC3140 device, which is a quad-channel, high-performance audio analog-to-digital converter (ADC). TLV320ADC3140 is intended for voice-activated systems, professional (...)
User guide: PDF
Driver or library
TLV320ADCX140SW-DRIVERS — TLV320ADCX140 ADC family Linux driver support
These Linux drivers support our low-power audio analog-to-digital converters (ADCs) in the TLV320ADCx1x0 device family. These drivers include both .c and .h files. The "Go to third party" buttons below will allow you to downlod the appropriate drivers from git.kernal.org.
Linux main line status
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Design tool
ADCX140EVM-SW — Evaluation software for ADC3140EVM-PDK, ADC5140EVM-PDK and ADC6140EVM-PDK
Evaluation software for ADC3140EVM-PDK, ADC5140EVM-PDK and ADC6140EVM-PDK
Supported products & hardware
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Hardware development
Evaluation board
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| WQFN (RTW) | 24 | Ultra Librarian |
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