Overview
The ADC12048CIVF from Texas Instruments is a 12-bit plus sign, parallel I/O, self-calibrating, sampling analog-to-digital converter (ADC). This component operates from a single 5V power supply and features an eight-channel programmable differential or single-ended multiplexer. The ADC12048 is designed to provide high accuracy and flexibility, making it suitable for a variety of applications. It includes built-in sample-and-hold, programmable acquisition times, and user-controllable throughput rates. The device also supports auto-calibration and auto-zero cycles to ensure high linearity and minimal errors.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 12-Bits + Sign | |
| Conversion Time (13-Bit) | 3.6 μs, Max | fCLK = 12 MHz |
| Throughput Rate (13-Bit) | 216 ksamples/s, Min | fCLK = 12 MHz |
| Integral Linearity Error (ILE) | ±1 LSB, Max | After Auto-Cal |
| Supply Voltage | +5 V ±10% | |
| VIN Range | GND to VA+ | |
| Power Consumption (Normal Operation) | 34 mW, Max | |
| Power Consumption (Stand-By Mode) | 75 μW, Max | |
| Operating Temperature Range | −40°C ≤ TA ≤ 85°C |
Key Features
- 8-Channel Programmable Differential or Single-Ended Multiplexer
- Programmable Acquisition Times and User-Controllable Throughput Rates
- Programmable Data Bus Width (8/13 bits)
- Built-in Sample-and-Hold
- Programmable Auto-Calibration and Auto-Zero Cycles
- Low Power Standby Mode
- No Missing Codes
Applications
- Medical Instrumentation
- Process Control Systems
- Test Equipment
- Data Logging
- Inertial Guidance
Q & A
- What is the resolution of the ADC12048?
The ADC12048 has a resolution of 12 bits plus sign. - What is the maximum sampling rate of the ADC12048?
The maximum sampling rate is 216 kHz. - What types of multiplexer configurations are supported by the ADC12048?
The ADC12048 supports single-ended, differential, or pseudo-differential modes. - Does the ADC12048 support auto-calibration?
Yes, the ADC12048 supports programmable auto-calibration and auto-zero cycles. - What is the power consumption in normal operation and standby mode?
In normal operation, the power consumption is 34 mW (max), and in standby mode, it is 75 μW (max). - What is the operating temperature range of the ADC12048?
The operating temperature range is −40°C to 85°C. - Can the ADC12048 be used with various microprocessors/microcontrollers?
Yes, it can be configured to work with many popular microprocessors/microcontrollers and DSPs. - What is the typical conversion time for a 13-bit conversion?
The typical conversion time for a 13-bit conversion is 3.6 μs (max). - Does the ADC12048 have a low power standby mode?
Yes, it has a low power standby mode. - What is the integral linearity error after auto-calibration?
The integral linearity error after auto-calibration is ±1 LSB (max).
