Overview
The MAX1242BESA+ is a low-power, 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component operates within a single supply voltage range of +2.7V to +5.25V and is available in an 8-pin SO-8 package. It features a successive-approximation ADC with a conversion time of 7.5µs and a fast track/hold time of 1.5µs. The device includes an on-chip clock and a high-speed, 3-wire serial interface, making it suitable for various applications requiring efficient and precise analog-to-digital conversion.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Resolution | 10 bits | |
| Number of Channels | 1 Channel | |
| Interface Type | SPI (3-wire serial interface) | |
| Supply Voltage Range | +2.7V to +5.25V | |
| Conversion Time | 7.5µs | fSCLK = 2.1MHz (50% duty cycle) |
| Track/Hold Time | 1.5µs | |
| Power Consumption | 3mW (VDD = 3V, 73ksps) | |
| Shutdown Current | 2µA | |
| Operating Temperature Range | 0°C to +70°C (C version), -40°C to +85°C (E version) | |
| Storage Temperature Range | -60°C to +150°C |
Key Features
- Low power consumption: 3mW at 73ksps with VDD = 3V.
- Fast conversion time: 7.5µs successive-approximation ADC.
- Fast track/hold time: 1.5µs.
- On-chip clock and high-speed 3-wire serial interface.
- Internal 2.5V reference (MAX1242) or external reference option (MAX1243).
- Shutdown mode with 2µA current to reduce power at slower throughput rates.
Applications
The MAX1242BESA+ is suitable for a variety of applications that require low-power, high-speed analog-to-digital conversion. These include:
- Portable and battery-powered devices due to its low power consumption.
- Industrial control systems where precise and fast data conversion is necessary.
- Medical devices that require high accuracy and low noise.
- Automotive systems where robustness and reliability are critical.
- Data acquisition systems in various fields such as environmental monitoring and scientific research.
Q & A
- What is the resolution of the MAX1242BESA+ ADC?
The MAX1242BESA+ has a resolution of 10 bits.
- What is the supply voltage range for the MAX1242BESA+?
The supply voltage range is +2.7V to +5.25V.
- What is the conversion time of the MAX1242BESA+?
The conversion time is 7.5µs.
- Does the MAX1242BESA+ have an internal reference voltage?
The MAX1242 has an internal 2.5V reference, while the MAX1243 requires an external reference.
- What is the power consumption of the MAX1242BESA+ at maximum sampling speed?
The power consumption is 3mW at 73ksps with VDD = 3V.
- What is the shutdown current of the MAX1242BESA+?
The shutdown current is 2µA.
- What is the operating temperature range for the MAX1242BESA+?
The operating temperature range is 0°C to +70°C (C version) and -40°C to +85°C (E version).
- What type of interface does the MAX1242BESA+ use?
The MAX1242BESA+ uses a high-speed 3-wire serial interface (SPI).
- Is the MAX1242BESA+ suitable for portable devices?
Yes, it is suitable due to its low power consumption.
- What is the storage temperature range for the MAX1242BESA+?
The storage temperature range is -60°C to +150°C.
