Overview
The MAX1142AEAP, produced by Analog Devices Inc./Maxim Integrated, is a high-performance 14-bit analog-to-digital converter (ADC) designed for various demanding applications. This ADC operates at a sampling rate of 200ksps and is characterized by its excellent dynamic performance, high speed, and low power consumption. It is particularly suited for industrial process control, instrumentation, and medical applications due to its robust specifications and features.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 200 ksps |
| Input Range | 0 to +12V (unipolar), ±12V (bipolar) |
| Analog Supply Voltage | +4.75V to +5.25V |
| Digital Supply Voltage | +4.75V to +5.25V |
| Power Consumption | 7.5 mA (typical at 200 ksps), < 20 µA (power-down mode) |
| Dynamic Performance | SINAD > 81 dB |
| Package | 20-pin SSOP |
| Interface | SPI, QSPI, MICROWIRE |
| Reference Voltage | +4.096V internal reference |
Key Features
- Internal track/hold and clock, with the option for an external serial-interface clock.
- Internal calibration circuitry to correct linearity and offset errors.
- On-demand calibration for optimized performance.
- Three user-programmable digital output pins for controlling external multiplexers or programmable gain amplifiers (PGAs).
- Serial strobe output (SSTRB) for direct connection to TMS320-family digital signal processors.
- Low power consumption with power-down modes reducing current to 1 mA at 10 ksps and less than 20 µA at slower data rates.
Applications
The MAX1142AEAP is ideal for a variety of applications, including:
- Industrial process control: For precise measurement and control in industrial environments.
- Instrumentation: Suitable for high-accuracy measurements in various instrumentation systems.
- Medical applications: Used in medical devices requiring high precision and reliability.
Q & A
- What is the resolution of the MAX1142AEAP ADC?
The MAX1142AEAP has a resolution of 14 bits. - What is the sampling rate of the MAX1142AEAP?
The sampling rate is 200 ksps. - What are the input voltage ranges for the MAX1142AEAP?
The input voltage ranges are 0 to +12V (unipolar) or ±12V (bipolar). - What are the supply voltage requirements for the MAX1142AEAP?
The analog and digital supply voltages are +4.75V to +5.25V. - How much power does the MAX1142AEAP consume?
The typical power consumption is 7.5 mA at 200 ksps, and less than 20 µA in power-down mode. - What is the dynamic performance of the MAX1142AEAP?
The SINAD (Signal-to-Noise and Distortion Ratio) is greater than 81 dB. - What package is the MAX1142AEAP available in?
The MAX1142AEAP is available in a 20-pin SSOP package. - What interfaces does the MAX1142AEAP support?
The MAX1142AEAP supports SPI, QSPI, and MICROWIRE interfaces. - Does the MAX1142AEAP have an internal reference voltage?
Yes, it has an internal +4.096V reference voltage. - Can the MAX1142AEAP be used with external multiplexers or PGAs?
Yes, it has three user-programmable digital output pins for controlling external multiplexers or PGAs.
