Overview
The MAX1280BEUP+ 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, offering high conversion speed and low power consumption. The MAX1280 operates from a single supply voltage of +4.5V to +5.5V, making it suitable for a variety of applications requiring precise and efficient data acquisition.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Number of Channels | 8 (single-ended or 4 pseudo-differential) | |
| Sampling Rate | 400ksps (MAX1280) | samples per second |
| Supply Voltage | +4.5V to +5.5V | V |
| Power Consumption (Normal Operation) | 2.5mA (400ksps) | mA |
| Power Consumption (Reduced-Power Mode) | 1.3mA | mA |
| Power Consumption (Fast Power-Down Mode) | 0.9mA | mA |
| Power Consumption (Full Power-Down Mode) | 2µA | µA |
| Integral Nonlinearity (INL) | ±1 LSB | |
| Differential Nonlinearity (DNL) | ±6.0 LSB | |
| Offset Error | ±7.0 LSB | |
| Gain Error | See datasheet for detailed specifications | |
| Package Type | 20-pin TSSOP |
Key Features
- 8-channel single-ended or 4-channel pseudo-differential inputs
- Internal multiplexer and track/hold
- Single-supply operation: +4.5V to +5.5V (MAX1280)
- Internal +2.5V reference with ±1.5% voltage-adjustment range
- 4-wire serial interface compatible with SPI™/QSPI™/MICROWIRE™ devices
- Serial strobe output for direct connection to TMS320-family digital signal processors
- Four software-selectable power modes: normal operation, reduced power, fast power-down, and full power-down
- Low power consumption with quick turn-on time
Applications
- Portable Data Logging
- Data Acquisition
- Medical Instruments
- Battery-Powered Instruments
- Pen Digitizers
- Process Control
Q & A
- What is the resolution of the MAX1280BEUP+ ADC?
The MAX1280BEUP+ has a 12-bit resolution.
- How many analog input channels does the MAX1280BEUP+ support?
The device supports 8 single-ended or 4 pseudo-differential analog input channels.
- What is the operating supply voltage range for the MAX1280BEUP+?
The MAX1280BEUP+ operates from a single supply voltage of +4.5V to +5.5V.
- What is the maximum sampling rate of the MAX1280BEUP+?
The maximum sampling rate is 400ksps.
- Does the MAX1280BEUP+ have internal reference voltage?
Yes, it has an internal +2.5V reference with a ±1.5% voltage-adjustment range.
- What types of serial interfaces are supported by the MAX1280BEUP+?
The device supports 4-wire serial interfaces compatible with SPI™/QSPI™/MICROWIRE™ devices.
- Can the MAX1280BEUP+ be used in low-power applications?
Yes, it features four software-selectable power modes to reduce power consumption.
- What are the typical power consumption modes of the MAX1280BEUP+?
The device has normal operation, reduced power, fast power-down, and full power-down modes.
- What is the package type of the MAX1280BEUP+?
The device is available in a 20-pin TSSOP package.
- What are some common applications of the MAX1280BEUP+?
Common applications include portable data logging, data acquisition, medical instruments, battery-powered instruments, pen digitizers, and process control.
