Overview
The MAX1245BEPP+ is a low-power, 8-channel, serial 12-bit analog-to-digital converter (ADC) produced by Maxim Integrated, now a part of Analog Devices. This device is designed for high-performance data acquisition and is particularly suited for applications requiring low power consumption and high conversion speed. It operates from a single supply voltage ranging from +2.375V to +3.3V and features software-configurable analog inputs for unipolar or bipolar and single-ended or differential operation.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | +2.375V to +3.3V |
| Number of Channels | 8 (single-ended), 4 (differential) |
| Resolution | 12 bits |
| Conversion Rate | Up to 100ksps |
| Power Consumption | 0.8mA (100ksps), 10µA (1ksps), 1µA (power-down mode) |
| Interface | SPI, QSPI, MICROWIRE, TMS320-compatible 4-wire serial interface |
| Package | 20-pin DIP, SSOP |
| Operating Temperature Range | -40°C to +85°C |
| Integral Nonlinearity (INL) | ±1 LSB |
Key Features
- Single +2.375V to +3.3V operation
- 8-channel single-ended or 4-channel differential analog inputs
- Low power consumption: 0.8mA (100ksps), 10µA (1ksps), 1µA (power-down mode)
- Internal track/hold with 100kHz sampling rate
- SPI, QSPI, MICROWIRE, and TMS320-compatible 4-wire serial interface
- Software-configurable unipolar or bipolar inputs
- Hard-wired SHDN pin and software-selectable power-down
- Quick turn-on time and automatic shutdown at the end of a conversion
Applications
- Portable data logging
- Medical instruments
- Battery-powered instruments
- Data acquisition systems
Q & A
- What is the supply voltage range for the MAX1245BEPP+? The MAX1245BEPP+ operates from a single supply voltage ranging from +2.375V to +3.3V.
- How many channels does the MAX1245BEPP+ have? It has 8 single-ended channels or 4 differential channels.
- What is the resolution of the MAX1245BEPP+? The resolution is 12 bits.
- What are the power consumption levels of the MAX1245BEPP+? The power consumption is 0.8mA at 100ksps, 10µA at 1ksps, and 1µA in power-down mode.
- What types of interfaces does the MAX1245BEPP+ support? It supports SPI, QSPI, MICROWIRE, and TMS320-compatible 4-wire serial interfaces.
- What are the available package options for the MAX1245BEPP+? It is available in 20-pin DIP and SSOP packages.
- What is the operating temperature range of the MAX1245BEPP+? The operating temperature range is -40°C to +85°C.
- How does the MAX1245BEPP+ manage power consumption during idle periods? It features a hard-wired SHDN pin and software-selectable power-down, allowing it to automatically shut down at the end of a conversion.
- Can the MAX1245BEPP+ be used in battery-powered devices? Yes, it is suitable for battery-powered instruments due to its low power consumption.
- What are some common applications of the MAX1245BEPP+? Common applications include portable data logging, medical instruments, and data acquisition systems.
