Overview
The MAX1240BESA/V+T is a low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed to operate with a single supply voltage ranging from +2.7V to +3.6V, making it suitable for applications where power consumption and space are critical. The MAX1240 features a successive-approximation ADC with a fast track/hold (T/H) circuit, an on-chip clock, and a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. The device is available in an 8-pin SO package, which is compact and suitable for various embedded systems and data acquisition applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Type of Integrated Circuit | A/D Converter |
| Number of Channels | 1 |
| Converter Resolution | 12-bit |
| Sampling Speed | 73 ksps |
| Case | SO8 |
| Mounting | SMD |
| Operating Temperature | -40°C to +85°C |
| Operating Voltage | +2.7V to +3.6V |
| Operating Current | 1.4 mA |
| Power Consumption | 37 mW (VDD = 3V) |
| Shutdown Current | 2 µA |
| Reference Voltage | Internal 2.5V reference |
Key Features
- Low power consumption: 37 mW at 73 ksps sampling speed and 2 µA in shutdown mode.
- Fast track/hold (T/H) circuit with 1.5 µs acquisition time.
- Successive-approximation ADC with 7.5 µs conversion time.
- High-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- Internal 2.5V reference voltage.
- No external hold capacitor required for the T/H circuit.
- Compact 8-pin SO package.
Applications
The MAX1240BESA/V+T is ideal for various applications requiring low power consumption and high precision, such as:
- Remote sensor applications.
- Data acquisition systems.
- Embedded systems with stringent power and space constraints.
- Circuits demanding excellent AC characteristics and low power consumption.
Q & A
- What is the operating voltage range of the MAX1240BESA/V+T?
The operating voltage range is +2.7V to +3.6V. - What is the resolution of the MAX1240BESA/V+T ADC?
The resolution is 12 bits. - What is the maximum sampling speed of the MAX1240BESA/V+T?
The maximum sampling speed is 73 ksps. - Does the MAX1240BESA/V+T require an external reference voltage?
No, it has an internal 2.5V reference voltage. - What is the power consumption of the MAX1240BESA/V+T at maximum sampling speed?
The power consumption is 37 mW at VDD = 3V. - What is the shutdown current of the MAX1240BESA/V+T?
The shutdown current is 2 µA. - What type of serial interface does the MAX1240BESA/V+T use?
The device uses a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. - What is the operating temperature range of the MAX1240BESA/V+T?
The operating temperature range is -40°C to +85°C. - What is the package type of the MAX1240BESA/V+T?
The device is available in an 8-pin SO package. - Is an external hold capacitor required for the T/H circuit?
No, an external hold capacitor is not required.
