Overview
The MAX1281BCUP+T is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device combines an 8-channel analog-input multiplexer, high-bandwidth track/hold, and a serial interface, making it suitable for a variety of applications requiring high conversion speed and low power consumption. The MAX1281 operates from a single supply voltage of +2.7V to +3.6V, making it ideal for battery-powered and low-voltage systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 8 single-ended or 4 pseudo-differential |
| Resolution | 12 bits |
| Sampling Rate | 300 kS/s |
| Supply Voltage | +2.7V to +3.6V |
| Operating Temperature | 0°C to +70°C |
| Package | 20-Pin TSSOP |
| Interface Type | SPI/QSPI/MICROWIRE |
| Internal Reference | +2.5V |
| Power Consumption | 2.5mA (normal mode), 1.3mA (reduced-power mode), 0.9mA (fast power-down mode), 2µA (full power-down mode) |
Key Features
- 8-channel single-ended or 4-channel pseudo-differential inputs
- Internal multiplexer and track/hold
- Single-supply operation: +2.7V to +3.6V
- Internal +2.5V reference
- High conversion speed: 300 kS/s
- Low power consumption with multiple power-down modes
- 4-wire serial interface compatible with SPI/QSPI/MICROWIRE
- Serial strobe output for direct connection to TMS320-family digital signal processors
Applications
- Portable data logging
- Data acquisition
- Medical instruments
- Battery-powered instruments
- Pen digitizers
- Process control
Q & A
- What is the resolution of the MAX1281BCUP+T ADC?
The MAX1281BCUP+T has a resolution of 12 bits. - What is the operating supply voltage range for the MAX1281BCUP+T?
The operating supply voltage range is +2.7V to +3.6V. - How many channels does the MAX1281BCUP+T support?
The device supports 8 single-ended or 4 pseudo-differential channels. - What is the sampling rate of the MAX1281BCUP+T?
The sampling rate is 300 kS/s. - What types of interfaces does the MAX1281BCUP+T support?
The device supports SPI, QSPI, and MICROWIRE interfaces. - What are the power consumption modes of the MAX1281BCUP+T?
The device has normal, reduced-power, fast power-down, and full power-down modes. - What is the operating temperature range for the MAX1281BCUP+T?
The operating temperature range is 0°C to +70°C. - What package type is the MAX1281BCUP+T available in?
The device is available in a 20-Pin TSSOP package. - Does the MAX1281BCUP+T have an internal reference voltage?
Yes, it has an internal +2.5V reference voltage. - What are some typical applications of the MAX1281BCUP+T?
Typical applications include portable data logging, data acquisition, medical instruments, battery-powered instruments, pen digitizers, and process control.
