Overview
The MAX1280BCUP+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 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) / 4 (pseudo-differential) | |
| Supply Voltage | +4.5V to +5.5V | V |
| Sampling Rate | 400 kS/s | S/s |
| Interface Type | SPI, QSPI, MICROWIRE | |
| Input Type | Single-ended, Pseudo-differential | |
| Internal Reference Voltage | +2.5V | V |
| Power Consumption (Normal Operation) | 2.5 mA (400 kS/s) | mA |
| Power Consumption (Reduced-Power Mode) | 1.3 mA | mA |
| Power Consumption (Fast Power-Down Mode) | 0.9 mA | mA |
| Power Consumption (Full Power-Down Mode) | 2 µA | µA |
| Operating Temperature Range | 0°C to +70°C | °C |
| 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
- Internal +2.5V reference with ±1.5% voltage-adjustment range
- 400 kS/s sampling rate
- Low power consumption: 2.5 mA (400 kS/s), 1.3 mA (reduced-power mode), 0.9 mA (fast power-down mode), 2 µA (full power-down mode)
- 4-wire serial interface compatible with SPI, QSPI, and MICROWIRE
- 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
Applications
- Portable data logging
- Data acquisition
- Medical instruments
- Battery-powered instruments
- Pen digitizers
- Process control
- Industrial automation
Q & A
- What is the resolution of the MAX1280BCUP+T ADC?
The MAX1280BCUP+T has a 12-bit resolution.
- How many channels does the MAX1280BCUP+T support?
The device supports 8 single-ended channels or 4 pseudo-differential channels.
- What is the supply voltage range for the MAX1280BCUP+T?
The supply voltage range is +4.5V to +5.5V.
- What is the maximum sampling rate of the MAX1280BCUP+T?
The maximum sampling rate is 400 kS/s.
- What types of interfaces does the MAX1280BCUP+T support?
The device supports SPI, QSPI, and MICROWIRE interfaces.
- What is the internal reference voltage of the MAX1280BCUP+T?
The internal reference voltage is +2.5V.
- How much power does the MAX1280BCUP+T consume in normal operation?
In normal operation, the device consumes 2.5 mA at 400 kS/s.
- What are the power-down modes available for the MAX1280BCUP+T?
The device has four software-selectable power modes: normal operation, reduced power, fast power-down, and full power-down.
- What is the operating temperature range for the MAX1280BCUP+T?
The operating temperature range is 0°C to +70°C.
- In what package type is the MAX1280BCUP+T available?
The device is available in a 20-pin TSSOP package.
