AFE639D2
Two-channel 12-bit smart analog front end (AFE) with TEC control with built-in ADC and DAC
AFE639D2
- 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.
Technical documentation
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 |
Product overview | Smart DAC Product Selection Guide | PDF | HTML | 01 Jul 2024 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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.
ANALOG-ENGINEER-CALC — Analog engineer's calculator
ADC-DAC-TO-VREF-SELECT-DESIGN-TOOL — The ADC-TO-VREF-SELECT tool enables the pairing of TI ADCs, DACs, and series voltage references.
Supported products & hardware
Products
Series voltage references
Precision ADCs
Biosensing AFEs
Integrated precision ADCs & DACs
High-speed ADCs (≥10 MSPS)
Precision DACs (≤10 MSPS)
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TINA-TI — SPICE-based analog simulation program
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
WQFN (RTE) | 16 | Ultra Librarian |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
- Fab location
- Assembly location
Support & training
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