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AFE539A4

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10-bit 4-channel smart DAC with voltage output, ADC, EEPROM and PI loop for DC/DC based TEC control

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Data sheet

AFE539A4

ACTIVE
Data sheet Order now

Product details

Resolution (Bits) 10 Number of DAC channels 4 Interface type I2C, SPI Output type Buffered Current, Buffered Voltage Settling time (µs) 25 Features Small Size, Smart DAC Reference type Ext, Int Architecture String Rating Catalog Output range (max) (mA/V) 5.5 Output range (min) (mA/V) 0 Sample/update rate (Msps) 0.25 Power consumption (typ) (mW) 1 Operating temperature range (°C) -40 to 125
Resolution (Bits) 10 Number of DAC channels 4 Interface type I2C, SPI Output type Buffered Current, Buffered Voltage Settling time (µs) 25 Features Small Size, Smart DAC Reference type Ext, Int Architecture String Rating Catalog Output range (max) (mA/V) 5.5 Output range (min) (mA/V) 0 Sample/update rate (Msps) 0.25 Power consumption (typ) (mW) 1 Operating temperature range (°C) -40 to 125
WQFN (RTE) 16 9 mm² 3 x 3
  • Integrated proportional-integral (PI) control
    • Standalone operation from nonvolatile memory (NVM)
    • Programmable proportional and integral gain
    • Comparator input for output clamping
    • Programmable min, max, and common-mode values for output
    • Programmable loop-phase inversion
  • AFE639D2
    • I 2C controller for external digital temperature sensor interface
    • 12-bit DAC output: 4-LSB DNL, 1-LSB DNL
  • AFE539A4
    • 10-bit ADC input: 2-LSB INL, 1-LSB DNL
    • 10-bit DAC output: 1-LSB INL and DNL
  • AFE439A2
    • 8-bit ADC input: 1-LSB INL and DNL
    • 7-bit duty-cycle PWM output
  • Programmable comparator for fault management
  • High impedance output on DAC channel when VDD is off
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin selects between programming and standalone modes
  • User-programmable NVM
  • Internal, external, or power supply as reference
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
    • Temperature range: –40˚C to +125˚C
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)
  • Integrated proportional-integral (PI) control
    • Standalone operation from nonvolatile memory (NVM)
    • Programmable proportional and integral gain
    • Comparator input for output clamping
    • Programmable min, max, and common-mode values for output
    • Programmable loop-phase inversion
  • AFE639D2
    • I 2C controller for external digital temperature sensor interface
    • 12-bit DAC output: 4-LSB DNL, 1-LSB DNL
  • AFE539A4
    • 10-bit ADC input: 2-LSB INL, 1-LSB DNL
    • 10-bit DAC output: 1-LSB INL and DNL
  • AFE439A2
    • 8-bit ADC input: 1-LSB INL and DNL
    • 7-bit duty-cycle PWM output
  • Programmable comparator for fault management
  • High impedance output on DAC channel when VDD is off
  • Automatically detects I 2C or SPI
    • 1.62-V V IH with V DD = 5.5 V
  • VREF/MODE pin selects between programming and standalone modes
  • User-programmable NVM
  • Internal, external, or power supply as reference
  • Wide operating range
    • Power supply: 1.8 V to 5.5 V
    • Temperature range: –40˚C to +125˚C
  • Tiny package: 16-pin WQFN (3 mm × 3 mm)

The 8-bit AFE439A2, 10-bit AFE539A4, and 12-bit AFE639D2 ( AFEx39xx) are smart analog front ends (AFE) for thermoelectric cooling (TEC) control using voltage or PWM output. The AFE639D2 supports an I 2C controller interface to interface with external digital temperature sensors. The AFE639D2 and AFE539A4 support voltage output and AFE439A2 supports PWM output. The AFEx39xx support a comparator channel for fault management. These devices also support Hi-Z power-down mode and Hi-Z output on the DAC channel during power off. These devices have an integrated state machine that is preprogrammed as a proportional-integral (PI) controller. The AFEx39xx are an excellent choice for TEC control, temperature control, and dynamic headroom control applications. The AFEx39xx integrate advanced features, internal reference, and NVM that enable this smart AFE for processor-less applications and design reuse.

The 8-bit AFE439A2, 10-bit AFE539A4, and 12-bit AFE639D2 ( AFEx39xx) are smart analog front ends (AFE) for thermoelectric cooling (TEC) control using voltage or PWM output. The AFE639D2 supports an I 2C controller interface to interface with external digital temperature sensors. The AFE639D2 and AFE539A4 support voltage output and AFE439A2 supports PWM output. The AFEx39xx support a comparator channel for fault management. These devices also support Hi-Z power-down mode and Hi-Z output on the DAC channel during power off. These devices have an integrated state machine that is preprogrammed as a proportional-integral (PI) controller. The AFEx39xx are an excellent choice for TEC control, temperature control, and dynamic headroom control applications. The AFEx39xx integrate advanced features, internal reference, and NVM that enable this smart AFE for processor-less applications and design reuse.
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Technical documentation

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Type Title Date
* Data sheet AFEx39xx 12-Bit, 10-Bit, and 8-Bit Smart Analog Front Ends for TEC Control Using Voltage and PWM Output datasheet (Rev. A) PDF | HTML 03 Jul 2023
EVM User's guide AFE539A4 Evaluation Module User's Guide PDF | HTML 28 Aug 2023
Circuit design Closed-Loop TEC Control Circuit Using a Voltage-Output Smart AFE and DC/DC Conv. PDF | HTML 02 May 2023
Application note A Basic Guide to I2C PDF | HTML 08 Nov 2022
Technical article How smart AFEs offer an integrated analog solution for thermoelectric cooling cont PDF | HTML 04 Jan 2022
Technical article What is a smart AFE? PDF | HTML 18 Nov 2021

Design & development

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Evaluation board

AFE539A4EVM — AFE539A4 evaluation module

The AFE539A4EVM is an easy-to-use platform to evaluate the functionality and performance of the AFE539A4. The AFE539A4EVM has an on-board controller for easy interface with the GUI. The AFE539A4EVM hardware is configured for the device most commont application- thermoelectric cooling control. 

User guide: PDF | HTML
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SMART-DAC-EVM-GUI — Smart DAC and smart AFE evaluation module software

This GUI interfaces with the on board controller of the smart DAC and smart AFE EVM ecosystem.
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Supported products & hardware

Supported products & hardware

Products
Precision DACs (≤10 MSPS)
AFE539A4 — Four-channel 10-bit smart analog front end (AFE) with PID/TEC control with built-in ADC and DAC DAC43204 — Four-channel, 8-bit, VOUT and IOUT smart DAC with I²C, SPI and Hi-Z out during power off DAC53001 — Ultra-low-power, single-channel, 10-bit, smart DAC with I²C, SPI and PWM DAC53002 — Ultra-low-power, two-channel, 10-bit, smart DAC with I²C, SPI and PWM DAC53004 — Ultra-low-power four-channel 10-bit smart DAC with I²C, SPI and PWM DAC53004W — Ultra-low-power four-channel 10-bit smart DAC in wafer chip scale package with I²C, SPI and PWM DAC53202 — Two-channel, 12-bit, VOUT and IOUT smart DAC with I²C and SPI and Hi-Z out during power off DAC53204 — Four-channel, 10-bit, VOUT and IOUT smart DAC with I²C, SPI and Hi-Z out during power off DAC53204-Q1 — Automotive, four-channel, 10-bit, VOUT and IOUT smart DAC with I²C, SPI and Hi-Z out DAC53204W — Four-channel, 10-bit, VOUT and IOUT smart DAC in wafer chip scale package with I²C, SPI and Hi-Z out DAC63001 — Ultra-low-power, single-channel 12-bit smart DAC with I²C, SPI and PWM DAC63002 — Ultra-low-power, dual-channel 12-bit smart DAC with I²C, SPI and PWM DAC63004 — Ultra-low-power quad-channel 12-bit smart DAC with I²C, SPI and PWM DAC63004W — Ultra-low-power four-channel 12-bit smart DAC in wafer chip scale package with I²C, SPI and PWM DAC63204 — Four-channel, 12-bit, VOUT and IOUT smart DAC with I²C, SPI and Hi-Z out during power off DAC539G2-Q1 — Automotive, two-channel 10-bit smart DAC for GPI-to-PWM conversion with auto-detected I²C or AFE539F1-Q1 — Automotive single-channel ten-bit smart AFE with PWM active discharge control AFE43902-Q1 — Automotive two-channel 8-bit smart DAC with multislope thermal foldback control with built-in ADC AFE53902-Q1 — Automotive two-channel 10-bit smart DAC with multislope thermal foldback control with built-in ADC DAC539E4W — Four-channel 10-bit smart analog front end (AFE) with IF-THEN-ELSE control in WCSP package
Hardware development
Evaluation board
DAC63204EVM — DAC63204 evaluation module for four-channel, 12-bit, VOUT and IOUT smart DAC AFE532A3WEVM — AFE532A3W evaluation module for 8-bit and 10-bit 300-mA current-source DAC AFE539A4EVM — AFE539A4 evaluation module DAC63004WCSP-EVM — DAC63004W evaluation module for four-channel 12-bit smart DAC in wafer chip scale package (WCSP) SMARTDAC-DIY-EVM — A do-it-yourself evaluation module for smart DAC devices
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Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)
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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 (...)
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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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WQFN (RTE) 16 View options
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