Overview
The MAX1281BEUP+ 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 various high-speed data acquisition applications. The MAX1281 operates from a single supply voltage of +2.7V to +3.6V, ensuring low power consumption and high conversion speed.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 8 (single-ended or 4 pseudo-differential) |
| Supply Voltage | +2.7V to +3.6V |
| Sampling Rate | 300 ksps |
| Integral Nonlinearity (INL) | ±1 LSB |
| Power Consumption | 2.5 mA (normal operation), 1.3 mA (reduced-power mode), 0.9 mA (fast power-down mode), 2 µA (full power-down mode) |
| Operating Temperature | -40°C to +85°C |
| Package Type | μMAX-8EP (8-pin) |
Key Features
- 8-channel single-ended or 4-channel pseudo-differential inputs
- Internal multiplexer and track/hold
- Single-supply operation with an internal +2.5V reference
- 400 ksps sampling rate (MAX1280), 300 ksps (MAX1281)
- Low power consumption with multiple power-down modes
- 4-wire serial interface compatible with SPI™/QSPI™/MICROWIRE™ devices
- 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 MAX1281BEUP+ ADC?
The MAX1281BEUP+ has a resolution of 12 bits. - How many analog input channels does the MAX1281BEUP+ have?
The device has 8 single-ended or 4 pseudo-differential analog input channels. - What is the operating supply voltage range for the MAX1281BEUP+?
The MAX1281BEUP+ operates from a single supply voltage of +2.7V to +3.6V. - What is the sampling rate of the MAX1281BEUP+?
The sampling rate of the MAX1281BEUP+ is 300 ksps. - What are the power consumption modes of the MAX1281BEUP+?
The device has normal operation, reduced-power mode, fast power-down mode, and full power-down mode with respective power consumptions. - Is the MAX1281BEUP+ compatible with SPI™/QSPI™/MICROWIRE™ devices?
Yes, the MAX1281BEUP+ has a 4-wire serial interface compatible with SPI™/QSPI™/MICROWIRE™ devices. - What is the purpose of the serial strobe output in the MAX1281BEUP+?
The serial strobe output allows direct connection to TMS320-family digital signal processors. - What are some typical applications of the MAX1281BEUP+?
Typical applications include portable data logging, data acquisition, medical instruments, battery-powered instruments, pen digitizers, and process control. - What is the package type of the MAX1281BEUP+?
The MAX1281BEUP+ is available in a μMAX-8EP (8-pin) package. - What is the operating temperature range of the MAX1281BEUP+?
The operating temperature range is -40°C to +85°C.
