Overview
The MAX1240AESA+ is a low-power, 12-bit serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed for applications requiring high precision, low power consumption, and compact packaging. It operates with a single supply voltage ranging from +2.7V to +3.6V, making it suitable for a variety of low-voltage systems. The MAX1240AESA+ features a successive-approximation ADC with a conversion time of 7.5µs and a fast track/hold time of 1.5µs, along with an on-chip clock and a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
Key Specifications
| Parameter | Value | Units | Conditions |
|---|---|---|---|
| Supply Voltage (VDD) | 2.7 to 3.6 | V | |
| Conversion Time | 7.5 | µs | |
| Track/Hold Time | 1.5 | µs | |
| Sampling Rate | Up to 73ksps | ||
| Power Consumption | 37mW (at VDD = 3V) | mW | |
| Shutdown Current | 2µA | µA | |
| Integral Nonlinearity (INL) | ±0.5 LSB | ||
| Package Type | 8-pin SO |
Key Features
- Low power consumption: 37mW at 73ksps sampling rate and 2µA in shutdown mode.
- High-speed conversion: 7.5µs successive-approximation ADC and 1.5µs track/hold time.
- High-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- Internal 2.5V reference voltage for MAX1240.
- Compact 8-pin SO package.
- Excellent AC characteristics, including low distortion and high signal-to-noise ratio.
Applications
- Remote sensor and data-acquisition systems.
- Circuits with demanding power consumption and space requirements.
- Battery-powered devices.
- Industrial automation and control systems.
- Medical devices requiring low power and high precision ADCs.
Q & A
- What is the supply voltage range for the MAX1240AESA+?
The supply voltage range for the MAX1240AESA+ is from +2.7V to +3.6V.
- What is the conversion time of the MAX1240AESA+ ADC?
The conversion time is 7.5µs.
- What is the track/hold time of the MAX1240AESA+?
The track/hold time is 1.5µs.
- What is the maximum sampling rate of the MAX1240AESA+?
The maximum sampling rate is up to 73ksps.
- How much power does the MAX1240AESA+ consume at 73ksps sampling rate?
The power consumption is 37mW at VDD = 3V.
- What is the shutdown current of the MAX1240AESA+?
The shutdown current is 2µA.
- What type of serial interface does the MAX1240AESA+ use?
The MAX1240AESA+ uses a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- Does the MAX1240AESA+ have an internal reference voltage?
Yes, the MAX1240AESA+ has an internal 2.5V reference voltage.
- In what package is the MAX1240AESA+ available?
The MAX1240AESA+ is available in an 8-pin SO package.
- What are some typical applications for the MAX1240AESA+?
Typical applications include remote sensor and data-acquisition systems, battery-powered devices, and industrial automation and control systems.
