Overview
The AMC7891SRHHT, produced by Texas Instruments, is a highly-integrated, low-power analog monitoring and control system. This device is designed to provide comprehensive monitoring and control capabilities in a compact 36-pin, 6-mm x 6-mm QFN package. It features an 8-channel, 10-bit Successive Approximation Register (SAR) analog-to-digital converter (ADC), four independent 10-bit digital-to-analog converters (DACs), an accurate on-chip temperature sensor, and twelve configurable general-purpose input/output (GPIO) ports. The AMC7891SRHHT is ideal for applications requiring low power consumption, small size, and high integration, making it suitable for modern RF transistor modules and general-purpose monitor and control systems.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| ADC Resolution | 10-bit SAR ADC | 10 bits |
| ADC Conversion Rate | ADC conversion rate | 500 kSPS |
| DAC Resolution | Independent 10-bit DACs | 10 bits |
| DAC Output Range | Output voltage range | 0 to 5 V |
| DAC Current Capability | Sink and source current | Up to 10 mA |
| Temperature Sensor Range | Operating temperature range | –40°C to +125°C |
| Temperature Sensor Accuracy | Accuracy of temperature sensor | ±2.5°C |
| GPIO Ports | Number of GPIO ports | 12 |
| GPIO Voltage Range | Operating voltage range for GPIO | 1.8 V to 5.5 V |
| Serial Interface | Serial interface type and clock rate | Low-power SPI-compatible, up to 30 MHz |
| Power Consumption | Power consumption at full operating conditions | 32.5 mW at 5 V |
| Package Type | Package type and size | 36-pin, 6-mm x 6-mm QFN |
Key Features
- High Integration: Combines an 8-channel ADC, four independent DACs, an on-chip temperature sensor, and twelve GPIO ports in a single package.
- Low Power Consumption: Operates at 32.5 mW at 5 V, making it suitable for power-sensitive applications.
- Compact Package: Available in a space-saving 36-pin, 6-mm x 6-mm QFN package.
- Wide Operating Temperature Range: Functional from –40°C to +105°C.
- Flexible Serial Interface: Low-power SPI-compatible serial interface with clock rates up to 30 MHz.
- Internal Reference: Includes an internal 2.5-V reference for driving the ADC and DACs.
- Configurable GPIOs: Twelve general-purpose I/O ports with operating voltage range from 1.8 V to 5.5 V.
Applications
- RF Communication Systems: Ideal for bias control in RF transistor modules such as power amplifiers (PA) and low-noise amplifiers (LNA).
- Cellular Base Stations: Suitable for monitoring and control functions in cellular base stations.
- Optical Networks: Used in optical network applications requiring precise monitoring and control.
- General-Purpose Monitor and Control Systems: Beneficial in various general-purpose monitoring and control systems.
Q & A
- What is the resolution of the ADC in the AMC7891SRHHT?
The ADC resolution is 10 bits.
- How many independent DACs does the AMC7891SRHHT have?
The device has four independent 10-bit DACs.
- What is the output voltage range of the DACs?
The DAC output voltage range is from 0 to 5 V.
- What is the temperature range of the on-chip temperature sensor?
The temperature sensor operates from –40°C to +125°C.
- How many GPIO ports does the AMC7891SRHHT have?
The device has twelve configurable GPIO ports.
- What is the maximum clock rate of the serial interface?
The serial interface can operate at clock rates up to 30 MHz.
- What is the power consumption of the AMC7891SRHHT at full operating conditions?
The power consumption is 32.5 mW at 5 V.
- In what package type is the AMC7891SRHHT available?
The device is available in a 36-pin, 6-mm x 6-mm QFN package.
- What are some typical applications of the AMC7891SRHHT?
Typical applications include RF communication systems, cellular base stations, optical networks, and general-purpose monitor and control systems.
- Does the AMC7891SRHHT have an internal reference for the ADC and DACs?
Yes, it includes an internal 2.5-V reference.
