Overview
The MAX156BCWI, produced by Analog Devices Inc./Maxim Integrated, is a high-speed, 8-bit, multichannel analog-to-digital converter (ADC) designed for precise and simultaneous sampling of multiple analog input channels. This component is part of the MAX156 series, which features 4 analog input channels, each with its own track/hold (T/H) circuit. This design eliminates timing differences between input channel samples, making it ideal for applications requiring accurate and synchronized data acquisition.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Analog Input Channels | 4 | |
| Conversion Time Per Channel | 3.6µs | |
| Resolution | 8-bit | |
| Input Range | Unipolar or Bipolar, Single-Ended or Differential | |
| Internal Reference Voltage | 2.5V | V |
| Supply Voltage | Single +5V or Dual ±5V | V |
| Power Consumption (Active) | 18-24 mA (MAX155), 9-12 mA (MAX156) | mA |
| Power Consumption (Power-Down) | 25-100 µA | µA |
| Package Type | 24-pin narrow PDIP, 28-pin wide SO |
Key Features
- Simultaneously sampling track/hold inputs to eliminate timing differences between channel samples.
- High-speed conversion time of 3.6µs per channel.
- Support for unipolar or bipolar, single-ended or differential input configurations.
- Mixed input configurations possible.
- Internal 2.5V reference voltage.
- Single +5V or dual ±5V supply operation.
- Power-down capability for low power consumption.
Applications
- Phase-sensitive data acquisition.
- Vibration and waveform analysis.
- DSP analog input.
- AC power meters.
- Portable data loggers.
Q & A
- What is the number of analog input channels on the MAX156BCWI?
The MAX156BCWI has 4 analog input channels. - What is the conversion time per channel for the MAX156BCWI?
The conversion time per channel is 3.6µs. - What types of input ranges does the MAX156BCWI support?
The MAX156BCWI supports unipolar or bipolar, single-ended or differential input ranges. - What is the internal reference voltage of the MAX156BCWI?
The internal reference voltage is 2.5V. - What are the possible supply voltage configurations for the MAX156BCWI?
The MAX156BCWI can operate from a single +5V supply or dual ±5V supplies. - How does the MAX156BCWI handle power consumption in power-down mode?
In power-down mode, the MAX156BCWI consumes between 25-100 µA. - What are the package types available for the MAX156BCWI?
The MAX156BCWI is available in 24-pin narrow PDIP and 28-pin wide SO packages. - What is the significance of the simultaneous track/hold feature in the MAX156BCWI?
The simultaneous track/hold feature eliminates timing differences between input channel samples, ensuring accurate and synchronized data acquisition. - Can the MAX156BCWI be used for both unipolar and bipolar conversions?
Yes, the MAX156BCWI supports both unipolar and bipolar conversions. - What are some common applications of the MAX156BCWI?
Common applications include phase-sensitive data acquisition, vibration and waveform analysis, DSP analog input, AC power meters, and portable data loggers.
