Overview
The MAX1280BEUP+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, offering high conversion speed and low power consumption. The MAX1280 operates from a single +4.5V to +5.5V supply, while the MAX1281, its counterpart, operates from a single +2.7V to +3.6V supply. The MAX1280BEUP+T is particularly suited for applications requiring high accuracy, low noise, and versatile power management.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 8 (single-ended) or 4 (pseudo-differential) |
| Supply Voltage | +4.5V to +5.5V (MAX1280) |
| Sampling Rate | 400ksps (MAX1280) |
| Internal Reference | +2.5V with ±1.5% voltage-adjustment range |
| Power Modes | Normal operation, reduced power, fast power-down, full power-down |
| Power Consumption | 2.5mA (400ksps), 1.3mA (reduced-power mode), 0.9mA (fast power-down mode), 2µA (full power-down mode) |
| Package Type | 20-pin TSSOP |
| Operating Temperature Range | 0°C to +70°C |
Key Features
- 8-channel single-ended or 4-channel pseudo-differential inputs
- Internal multiplexer and track/hold
- Single-supply operation
- Internal +2.5V reference with a ±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
- Quick turn-on time and automatic power-up via serial interface access
Applications
- Portable Data Logging
- Data Acquisition
- Medical Instruments
- Battery-Powered Instruments
- Pen Digitizers
- Process Control
Q & A
- What is the resolution of the MAX1280BEUP+T ADC?
The MAX1280BEUP+T has a resolution of 12 bits. - How many analog input channels does the MAX1280BEUP+T have?
The MAX1280BEUP+T has 8 single-ended or 4 pseudo-differential analog input channels. - What is the supply voltage range for the MAX1280?
The MAX1280 operates from a single +4.5V to +5.5V supply. - What is the sampling rate of the MAX1280?
The MAX1280 has a sampling rate of 400ksps. - Does the MAX1280 have an internal reference voltage?
Yes, the MAX1280 has an internal +2.5V reference with a ±1.5% voltage-adjustment range. - What are the power modes available for the MAX1280?
The MAX1280 has four software-selectable power modes: normal operation, reduced power, fast power-down, and full power-down. - How does the MAX1280 manage power consumption during idle periods?
The MAX1280 can be programmed to automatically shut down at the end of a conversion or to operate with reduced power, and accessing the serial interface automatically powers up the device. - What is the package type of the MAX1280BEUP+T?
The MAX1280BEUP+T is available in a 20-pin TSSOP package. - What is the operating temperature range of the MAX1280?
The operating temperature range of the MAX1280 is 0°C to +70°C. - Can the MAX1280 be used with different types of serial interfaces?
Yes, the MAX1280 has a 4-wire serial interface compatible with SPI™/QSPI™/MICROWIRE™ devices and includes a serial strobe output for direct connection to TMS320-family digital signal processors.
