AMC7891
- 10-Bit, 500-kSPS SAR ADC:
- 8 External Analog Inputs
- VREF, 2 × VREF Input Ranges
- Four 10-Bit Monotonic DACs:
- 0 to 5-V Output Range
- Up to 10-mA Sink and Source Capability
- Power-On Reset to 0 V
- Internal 2.5-V Reference
- Internal Temperature Sensor:
- –40°C to +125°C Operation
- Accuracy of ±2.5°C
- 12 General-Purpose I/O Ports:
- 1.8-V to 5.5-V Operation
- Low-Power SPI-Compatible Serial Interface:
- 4-Wire Mode, 1.8-V to 5.5-V Operation
- SCLK up to 30 MHz
- Temperature Range: –40°C to +105°C
- Low Power: 32.5 mW at 5 V, Full Operating Conditions
- Space-Saving Package: 36-pin, 6-mm × 6-mm QFN
The AMC7891 is a highly-integrated, low-power, complete analog monitoring and control system in a very small package.
For monitoring functions, the AMC7891 has 8 uncommitted inputs multiplexed into a 10-bit SAR analog-to-digital converter (ADC) and an accurate on-chip temperature sensor. Control signals are generated through four, independent, 10-bit digital-to-analog converters (DACs). Additional digital signal monitoring and control is accomplished through twelve configurable GPIOs. An internal reference can be used to drive the ADC and DACs.
Communication to the device is performed through a versatile, four-wire serial interface compatible with industry-standard microprocessors and microcontrollers. The serial interface can operate at clock rates up to 30 MHz, allowing quick access to critical system data.
The device is characterized for operation over the temperature range of –40ºC to 105ºC and is available in a very small, 36-pin, 6-mm × 6-mm QFN package.
The AMC7891’s low power, small size and high-integration make it an ideal low-cost, bias control circuit for modern RF transistor modules such as the power amplifiers (PA) and low-noise amplifiers (LNA) found in RF communication systems. The AMC7891 feature set is similarly beneficial in general purpose monitor and control systems.
For applications that require a different channel count, additional features, or converter resolutions, Texas Instruments offers a complete family of Analog Monitor and Control (AMC) Products. See http://www.ti.com/amc.
Technical documentation
Type | Title | Date | ||
---|---|---|---|---|
* | Data sheet | Analog Monitoring & Control Circuit w/Multi-Ch ADC, 4 DACs, Temp Sens, 12 GPIOs datasheet (Rev. A) | 13 Dec 2011 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
VQFN (RHH) | 36 | 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
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
TI E2E™ forums with technical support from TI engineers
Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.
If you have questions about quality, packaging or ordering TI products, see TI support.