Overview
The AMC7823IRTARG4, produced by Texas Instruments, is a comprehensive integrated circuit designed for analog monitoring and control applications. This device is housed in a 40-lead QFN package and is fully specified over the temperature range of –40°C to +85°C. It combines an 8-channel, 12-bit analog-to-digital converter (ADC), eight 12-bit digital-to-analog converters (DACs), four analog input out-of-range alarms, and six general-purpose digital I/Os. The AMC7823 also features an internal temperature sensor, a precision current source, and an SPI serial interface, making it ideal for multichannel applications where low power and small size are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| ADC Resolution | 12 Bits | |
| ADC Sample Rate | 200 kSPS | |
| Number of Analog Inputs | 8 | |
| Analog Input Range | 0 to 2 × VREF | V |
| DAC Resolution | 12 Bits | |
| DAC Settling Time | 2 μs | μs |
| Internal Reference Voltage | 1.25V or 2.5V | V |
| Power Supply Voltage | 3V to 5V | V |
| Quiescent Current (AVDD) | 15 mA (typical) | mA |
| Power Dissipation | 100 mW (typical) | mW |
| Operating Temperature Range | –40°C to +85°C | °C |
| Package Type | 40-lead QFN |
Key Features
- 8-channel, 12-bit ADC with a sample rate of 200 kSPS
- Eight 12-bit DACs with a settling time of 2 μs
- Four analog input out-of-range alarms
- Six general-purpose digital I/Os
- Internal temperature sensor
- Precision current source for driving remote thermistors or RTDs
- Programmable internal reference voltage (1.25V or 2.5V)
- SPI serial interface, 3V or 5V logic compatible
- Single 3V to 5V power supply
- Low power dissipation (100 mW typical)
- Small package size (QFN-40, 6 x 6 mm)
Applications
- Communications Equipment
- Optical Networks
- Automatic Test Equipment
- Industrial Control and Monitoring
- Medical Equipment
Q & A
- What is the resolution of the ADC in the AMC7823?
The ADC in the AMC7823 has a resolution of 12 bits.
- How many analog inputs does the AMC7823 have?
The AMC7823 has eight analog inputs.
- What is the range of the analog input voltage?
The analog input voltage range is 0 to 2 × VREF.
- What is the settling time of the DACs in the AMC7823?
The DACs have a settling time of 2 μs.
- Does the AMC7823 have an internal temperature sensor?
Yes, the AMC7823 includes an internal temperature sensor.
- What is the power supply voltage range for the AMC7823?
The power supply voltage range is 3V to 5V.
- What is the typical power dissipation of the AMC7823?
The typical power dissipation is 100 mW.
- What is the operating temperature range of the AMC7823?
The operating temperature range is –40°C to +85°C.
- What type of package does the AMC7823 come in?
The AMC7823 is housed in a 40-lead QFN package.
- Is the AMC7823 compatible with SPI serial interface?
Yes, the AMC7823 is compatible with SPI serial interface and supports 3V or 5V logic.
