Overview
The MAX157ACPA from Analog Devices Inc. (now part of Maxim Integrated) is a low-power, 10-bit analog-to-digital converter (ADC) designed for high-performance and low-power applications. This device operates with a single supply voltage ranging from +2.7V to +5.25V and is available in an 8-pin µMAX package. It features a successive-approximation ADC with a conversion rate of 108 ksps and includes automatic power-down and fast wake-up capabilities, making it ideal for battery-powered and data acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | +2.7V to +5.25V |
| Number of Channels | 2 (single-ended) |
| Resolution | 10 bits |
| Conversion Rate | 108 ksps |
| Interface | SPI, QSPI, MICROWIRE compatible |
| Power Consumption | 3.2mW (at VDD = +3.6V, 108ksps) |
| Automatic Shutdown Current | 0.2µA |
| Wake-Up Time | 2.5µs |
| Operating Temperature | -40°C to 70°C |
| Package | 8-pin µMAX |
Key Features
- Single-supply operation (+2.7V to +5.25V)
- Two single-ended input channels
- Successive-approximation ADC with 7.4µs conversion time
- Automatic power-down and fast wake-up (2.5µs)
- On-chip clock and high-speed, 3-wire serial interface (SPI, QSPI, MICROWIRE compatible)
- Low power consumption (3.2mW at VDD = +3.6V, 108ksps)
- Excellent dynamic performance
Applications
The MAX157ACPA is well-suited for various applications requiring low power and high performance, including:
- Battery-powered systems
- Data acquisition systems
- Medical and scientific instrumentation
- Industrial control and automation
- Any circuit with demanding power-consumption and space requirements
Q & A
- What is the supply voltage range for the MAX157ACPA?
The supply voltage range is +2.7V to +5.25V. - How many channels does the MAX157ACPA have?
The MAX157ACPA has two single-ended channels. - What is the resolution of the MAX157ACPA?
The resolution is 10 bits. - What is the conversion rate of the MAX157ACPA?
The conversion rate is 108 ksps. - What type of interface does the MAX157ACPA use?
The interface is SPI, QSPI, and MICROWIRE compatible. - How much power does the MAX157ACPA consume at maximum sampling rate?
The power consumption is 3.2mW at VDD = +3.6V and 108ksps. - What is the wake-up time for the MAX157ACPA?
The wake-up time is 2.5µs. - What is the operating temperature range for the MAX157ACPA?
The operating temperature range is -40°C to 70°C. - In what package is the MAX157ACPA available?
The MAX157ACPA is available in an 8-pin µMAX package. - What are some typical applications for the MAX157ACPA?
Typical applications include battery-powered systems, data acquisition systems, medical and scientific instrumentation, and industrial control and automation.
