Overview
The MAX1240BCSA+ 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 high performance and low power consumption. The MAX1240 operates with a single supply voltage ranging from +2.7V to +3.6V, making it suitable for a variety of applications where power efficiency and precision are crucial.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Units | Conditions |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | - | 3.6 | V | - |
| Supply Current (IDD) | 1.6 | 3.5 | 3.8 | mA | VDD = 3.6V, 73ksps |
| Power Consumption | - | 37 | - | mW | VDD = 3V, 73ksps |
| Conversion Time | - | 7.5 | - | μs | Successive-approximation ADC |
| Track/Hold Time | - | 1.5 | - | μs | - |
| Sampling Rate | - | 73 | - | ksps | - |
| Resolution | - | 12 | - | bits | - |
| Shutdown Current | - | 2 | - | μA | Power-down mode |
Key Features
- Low Power Consumption: Operates with a power consumption of only 37mW at 73ksps with VDD = 3V.
- High-Speed Conversion: Features a 7.5μs successive-approximation ADC and a fast track/hold time of 1.5μs.
- High-Speed Serial Interface: Supports SPI, QSPI, and MICROWIRE interfaces with a 3-wire serial connection.
- Internal Reference: The MAX1240 has an internal 2.5V reference, while the MAX1241 requires an external reference.
- Small Package Size: Available in 8-pin SO and PDIP packages, making it ideal for space-constrained applications.
- Shutdown Mode: Reduces power consumption to 2μA in shutdown mode.
Applications
- Remote Sensor Applications: Ideal for remote sensor and data-acquisition systems due to its low power consumption and high performance.
- Data Acquisition Systems: Suitable for various data-acquisition applications requiring low power and high precision.
- Instrumentation: Used in instrumentation applications where precision and low power are essential.
- Communications: Can be used in communication systems that require high-speed ADCs with low power consumption.
Q & A
- What is the supply voltage range for the MAX1240BCSA+?
The MAX1240BCSA+ operates with a single supply voltage ranging from +2.7V to +3.6V.
- What is the typical power consumption of the MAX1240BCSA+ at 73ksps?
The typical power consumption is 37mW at 73ksps with VDD = 3V.
- What is the conversion time of the MAX1240BCSA+?
The conversion time is 7.5μs using a successive-approximation ADC.
- Does the MAX1240BCSA+ have an internal reference voltage?
Yes, the MAX1240 has an internal 2.5V reference voltage.
- What is the shutdown current of the MAX1240BCSA+?
The shutdown current is 2μA.
- What types of serial interfaces does the MAX1240BCSA+ support?
The device supports SPI, QSPI, and MICROWIRE interfaces.
- What is the resolution of the MAX1240BCSA+ ADC?
The resolution is 12 bits.
- What are the typical package types for the MAX1240BCSA+?
The device is available in 8-pin SO and PDIP packages.
- What are some common applications for the MAX1240BCSA+?
Common applications include remote sensor systems, data acquisition systems, instrumentation, and communication systems.
- How does the MAX1240BCSA+ reduce power consumption in low-activity states?
The device reduces power consumption to 2μA in shutdown mode.
