Overview
The MAX1085BESA+ is a 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1084/MAX1085 series, known for its high-bandwidth track/hold, serial interface, and low power consumption. The MAX1085BESA+ operates from a single supply voltage of +2.7V to +3.6V, making it suitable for battery-powered and space-constrained applications. It features an internal +2.5V reference and a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols, facilitating easy integration with microprocessors.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Type of Integrated Circuit | A/D Converter |
| Number of Channels | 1 |
| Converter Resolution | 10-bit |
| Sampling Speed | 300ksps |
| Operating Voltage | +2.7V to +3.6V |
| Operating Current | 2.5mA |
| Interface | SPI, QSPI, MICROWIRE |
| Package Type | SO8, SMD |
| Operating Temperature | -40°C to +85°C |
| Relative Accuracy | 1LSB |
Key Features
- Single-supply operation: +2.7V to +3.6V
- 10-bit resolution
- 300ksps sampling rate
- Internal track/hold and successive-approximation register (SAR) circuitry
- Internal +2.5V reference
- Low power consumption: 2.5mA at 300ksps
- 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols
- Pin-compatible, high-speed upgrade to MAX1242/MAX1243
- 8-pin SO package, SMD mounting
- Shutdown mode with low supply current (2µA typical)
Applications
- Portable data logging
- Data acquisition
- Medical instruments
- Battery-powered instruments
- Pen digitizers
- Process control
Q & A
- What is the operating voltage range of the MAX1085BESA+?
The MAX1085BESA+ operates from a single supply voltage of +2.7V to +3.6V.
- What is the resolution of the MAX1085BESA+ ADC?
The MAX1085BESA+ has a 10-bit resolution.
- What is the sampling speed of the MAX1085BESA+?
The MAX1085BESA+ has a sampling speed of 300ksps.
- What type of interface does the MAX1085BESA+ use?
The MAX1085BESA+ uses a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- How much power does the MAX1085BESA+ consume?
The MAX1085BESA+ consumes 2.5mA at 300ksps.
- What is the package type of the MAX1085BESA+?
The MAX1085BESA+ is available in an 8-pin SO package with SMD mounting.
- What is the operating temperature range of the MAX1085BESA+?
The MAX1085BESA+ operates over a temperature range of -40°C to +85°C.
- How accurate is the MAX1085BESA+?
The MAX1085BESA+ has a relative accuracy of 1LSB.
- What are some common applications of the MAX1085BESA+?
Common applications include portable data logging, data acquisition, medical instruments, battery-powered instruments, pen digitizers, and process control.
- How does the shutdown mode work on the MAX1085BESA+?
Pulling the SHDN pin low shuts the device down, reducing the supply current to 2µA typical.
