Overview
The MAX1242BESA/V+T is a low-power, 10-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device operates with a single supply voltage ranging from +2.7V to +5.25V and is available in an 8-pin SOIC package. It features a successive-approximation ADC with a fast track/hold time and a high-speed, 3-wire serial interface compatible with SPI, QSPI™, and MICROWIRE®. The MAX1242BESA/V+T is designed for applications requiring low power consumption and high accuracy, making it ideal for remote sensor and data acquisition systems, among others.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 10 | |
| Sampling Rate | 73 ksamples/s | |
| Number of Inputs | 1 | |
| Input Type | Single Ended | |
| Data Interface | SPI | |
| Reference Type | Internal (MAX1242), External (MAX1243) | |
| Voltage - Supply, Analog/Digital | +2.7V to +5.25V | V |
| Operating Temperature | -40°C to +85°C | °C |
| Package/Case | 8-SOIC | |
| Mounting Type | Surface Mount | |
| Power Consumption (at 3V, 73ksps) | 3 mW | mW |
| Shutdown Current | < 10 µA (VDD ≤ 3.6V) | µA |
Key Features
- Low power consumption: 3mW at 73ksps with VDD = 3V.
- Fast track/hold time: 1.5µs and conversion time: 7.5µs.
- High-speed, 3-wire serial interface compatible with SPI, QSPI™, and MICROWIRE®.
- Internal reference voltage of 2.5V for MAX1242, and external reference capability for MAX1243.
- Shutdown mode reducing power consumption to less than 10µA (VDD ≤ 3.6V).
- ROHS3 compliant and available in 8-pin SOIC and PDIP packages.
Applications
- Remote sensor and data acquisition systems.
- Battery-powered instruments and devices.
- Low-power and space-constrained circuits.
- Industrial automation and control systems.
- Medical devices requiring precise and low-power ADCs.
Q & A
- What is the resolution of the MAX1242BESA/V+T ADC?
The MAX1242BESA/V+T is a 10-bit analog-to-digital converter.
- What is the operating voltage range of the MAX1242BESA/V+T?
The device operates with a single supply voltage ranging from +2.7V to +5.25V.
- What is the sampling rate of the MAX1242BESA/V+T?
The sampling rate is up to 73 ksamples/s.
- What type of data interface does the MAX1242BESA/V+T use?
The device uses a high-speed, 3-wire serial interface compatible with SPI, QSPI™, and MICROWIRE®.
- Does the MAX1242BESA/V+T have an internal reference voltage?
Yes, the MAX1242 has an internal reference voltage of 2.5V, while the MAX1243 requires an external reference.
- What is the power consumption of the MAX1242BESA/V+T at maximum sampling rate?
The power consumption is approximately 3mW at 73ksps with VDD = 3V.
- How does the MAX1242BESA/V+T reduce power consumption in shutdown mode?
In shutdown mode, the power consumption is reduced to less than 10µA (VDD ≤ 3.6V).
- What are the available package types for the MAX1242BESA/V+T?
The device is available in 8-pin SOIC and PDIP packages.
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Yes, the MAX1242BESA/V+T is ROHS3 compliant.
- What are some typical applications of the MAX1242BESA/V+T?
Typical applications include remote sensor and data acquisition systems, battery-powered instruments, and low-power, space-constrained circuits.
