Overview
The MAX1240AESA+T, produced by Analog Devices Inc./Maxim Integrated, is a low-power, 12-bit analog-to-digital converter (ADC) designed for high-performance and low-power applications. This device operates with a single supply voltage ranging from +2.7V to +3.6V and is available in an 8-pin SOIC package. It features a successive-approximation ADC with a fast track/hold time of 1.5µs and an on-chip clock, enabling efficient and accurate analog-to-digital conversions.
The MAX1240AESA+T includes a high-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols, making it easy to integrate with standard microcontroller I/O ports. The device also includes a 2µA shutdown mode to reduce power consumption at slower throughput rates.
Key Specifications
| Parameter | Min | Typ | Max | Units | Conditions |
|---|---|---|---|---|---|
| Resolution | 12 bits | ||||
| Sampling Rate | 73 kSPS | ||||
| Supply Voltage | 2.7 | 3.6 | V | ||
| Input Channel Type | Single Ended | ||||
| Data Interface | 3 Wire, Microwire, QSPI, Serial, SPI | ||||
| No. of Pins | 8 | ||||
| Operating Temperature | -40 | 85 | °C | ||
| Power Consumption | 37 mW | VDD = 3V, fSAMPLE = 73 kSPS | |||
| Shutdown Current | 2 µA | ||||
Key Features
- Low-power operation with a maximum power consumption of 37 mW at 73 kSPS sampling rate.
- Fast track/hold time of 1.5µs and successive-approximation ADC conversion time of 7.5µs.
- High-speed, 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- Internal 2.5V reference voltage for the MAX1240, eliminating the need for an external reference.
- Shutdown mode with a current of 2 µA to reduce power consumption during idle periods.
- Operating temperature range from -40°C to 85°C, making it suitable for a wide range of environments.
- AEC-Q100 automotive qualification standard, ensuring reliability in automotive applications.
Applications
The MAX1240AESA+T is ideal for various applications requiring high accuracy, low power consumption, and compact design. These include:
- Remote sensor and data-acquisition systems.
- Automotive systems, given its AEC-Q100 qualification.
- Battery-powered devices and portable electronics.
- Industrial control and monitoring systems.
- Medical devices and diagnostic equipment.
Q & A
- What is the resolution of the MAX1240AESA+T ADC?
The MAX1240AESA+T has a resolution of 12 bits.
- What is the sampling rate of the MAX1240AESA+T?
The sampling rate is up to 73 kSPS.
- What is the supply voltage range for the MAX1240AESA+T?
The supply voltage range is from +2.7V to +3.6V.
- What type of data interface does the MAX1240AESA+T use?
The device uses a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols.
- Does the MAX1240AESA+T have an internal reference voltage?
Yes, the MAX1240AESA+T has an internal 2.5V reference voltage.
- What is the power consumption of the MAX1240AESA+T at maximum sampling rate?
The power consumption is 37 mW at 73 kSPS with VDD = 3V.
- What is the shutdown current of the MAX1240AESA+T?
The shutdown current is 2 µA.
- What is the operating temperature range of the MAX1240AESA+T?
The operating temperature range is from -40°C to 85°C.
- Is the MAX1240AESA+T qualified for automotive applications?
Yes, it is qualified to the AEC-Q100 automotive standard.
- What package types are available for the MAX1240AESA+T?
The device is available in 8-pin SOIC packages.
