Overview
The MAX1240BESA/V+ is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1240/MAX1241 series, known for its excellent AC characteristics, very low power consumption, and ease of use. The MAX1240 operates with a single supply voltage ranging from +2.7V to +3.6V, making it suitable for applications with stringent power and space requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Supply Voltage | +2.7V to +3.6V |
| Sampling Rate | Up to 73ksps |
| Conversion Time | 7.5µs (including track/hold time) |
| Track/Hold Time | 1.5µs |
| Power Consumption | 37mW at 73ksps (VDD = 3V) |
| Shutdown Current | 2µA |
| Reference Voltage | Internal 2.5V reference (MAX1240) |
| Interface | High-speed, 3-wire serial interface (compatible with SPI, QSPI, MICROWIRE) |
| Package Type | 8-pin SOIC |
Key Features
- Low power consumption with a maximum of 37mW at 73ksps and a shutdown mode of 2µA.
- Fast successive-approximation ADC with a conversion time of 7.5µs and a track/hold time of 1.5µs.
- Internal 2.5V reference voltage for the MAX1240, and external reference requirement for the MAX1241.
- High-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE.
- Small package size in 8-pin SOIC, ideal for space-constrained applications.
Applications
The MAX1240BESA/V+ is ideal for various applications requiring low power consumption and high precision, such as:
- Remote sensor applications.
- Data acquisition systems.
- Circuits with demanding power and space requirements.
Q & A
- What is the resolution of the MAX1240BESA/V+ ADC?
The MAX1240BESA/V+ has a resolution of 12 bits. - What is the operating supply voltage range for the MAX1240BESA/V+?
The operating supply voltage range is from +2.7V to +3.6V. - What is the maximum sampling rate of the MAX1240BESA/V+?
The maximum sampling rate is up to 73ksps. - How long does the conversion process take for the MAX1240BESA/V+?
The conversion time, including track/hold time, is 7.5µs. - What is the power consumption of the MAX1240BESA/V+ at maximum sampling rate?
The power consumption is 37mW at 73ksps (VDD = 3V). - Does the MAX1240BESA/V+ have an internal reference voltage?
Yes, the MAX1240 has an internal 2.5V reference voltage. - What type of interface does the MAX1240BESA/V+ use?
The MAX1240BESA/V+ uses a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE. - In what package type is the MAX1240BESA/V+ available?
The MAX1240BESA/V+ is available in an 8-pin SOIC package. - What is the shutdown current of the MAX1240BESA/V+?
The shutdown current is 2µA. - What are some typical applications for the MAX1240BESA/V+?
Typical applications include remote sensor applications, data acquisition systems, and circuits with demanding power and space requirements.
