Overview
The AMC7836IPAPR, produced by Texas Instruments, is a highly-integrated, low-power analog monitoring and control solution. This device is designed to significantly reduce component count and simplify closed-loop system designs, making it ideal for multichannel applications where board space, size, and low power consumption are critical. The AMC7836 includes a 21-channel, 12-bit analog-to-digital converter (ADC), sixteen 12-bit digital-to-analog converters (DACs) with programmable output ranges, eight general-purpose I/O ports (GPIOs), an internal reference, and a local temperature sensor channel.
Key Specifications
| Parameter | Description |
|---|---|
| ADC Resolution | 12-bit SAR ADC |
| ADC Channels | 21 external analog inputs (16 bipolar, 5 high-precision) |
| ADC Input Range | Bipolar: –12.5 V to +12.5 V, High-Precision: 0 V to 5 V |
| DAC Resolution | 12-bit |
| DAC Channels | 16 monotonic DACs |
| DAC Output Ranges | Selectable: –10 V to 0 V, –5 V to 0 V, 0 V to 5 V, 0 V to 10 V |
| DAC Current Drive | Up to ±15 mA |
| Temperature Sensor | Internal, –40°C to +125°C operation, ±2.5°C accuracy |
| GPIOs | Eight general-purpose I/O ports |
| Serial Interface | Low-power SPI-compatible, 4-wire mode, 1.8-V to 5.5-V operation |
| Package | 64-Pin HTQFP with exposed thermal pad |
| Operating Temperature | –40°C to +125°C |
Key Features
- High-density integration with 21-channel ADC and 16-channel DAC
- Programmable DAC output ranges and high current drive capability up to ±15 mA
- Internal 2.5-V reference and temperature sensor with ±2.5°C accuracy
- Eight general-purpose I/O ports (GPIOs)
- Low-power SPI-compatible serial interface
- Auto-range detector and selectable clamp voltage
- Programmable out-of-range alarms
- Wide operating temperature range: –40°C to +125°C
Applications
- Communications Infrastructure: Cellular Base Stations, Microwave Backhaul, Optical Networks
- General-Purpose Monitor and Control Systems
- Data Acquisition Systems
- Bias-Control Circuits for Power Amplifiers in RF Communication Systems (e.g., LDMOS, GaAs, GaN)
Q & A
- What is the resolution of the ADC in the AMC7836?
The ADC resolution is 12-bit SAR ADC.
- How many analog input channels does the AMC7836 have?
The device has 21 external analog input channels, including 16 bipolar and 5 high-precision inputs.
- What are the selectable output ranges for the DACs?
The DACs have selectable output ranges of –10 V to 0 V, –5 V to 0 V, 0 V to 5 V, and 0 V to 10 V.
- What is the current drive capability of the DACs?
The DACs have a current drive capability of up to ±15 mA.
- Does the AMC7836 include a temperature sensor?
Yes, it includes an internal temperature sensor with an operating range of –40°C to +125°C and ±2.5°C accuracy.
- How many GPIO ports are available on the AMC7836?
There are eight general-purpose I/O ports (GPIOs) available.
- What type of serial interface does the AMC7836 use?
The device uses a low-power SPI-compatible serial interface in 4-wire mode, operating from 1.8 V to 5.5 V.
- In what package is the AMC7836 available?
The AMC7836 is available in a 64-Pin HTQFP package with an exposed thermal pad.
- What is the operating temperature range of the AMC7836?
The operating temperature range is –40°C to +125°C.
- What are some typical applications of the AMC7836?
Typical applications include communications infrastructure, general-purpose monitor and control systems, data acquisition systems, and bias-control circuits for power amplifiers in RF communication systems.
