Overview
The MAX1241BEPA+ 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 MAX1241 operates with a single supply voltage ranging from +2.7V to +5.25V, making it versatile for various applications. It features a successive-approximation ADC with a fast track/hold time of 1.5µs and a high-speed, 3-wire serial interface, allowing for efficient data transfer and integration with microcontrollers.
Key Specifications
| Parameter | Min | Typ | Max | Units | Conditions |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 2.7 | - | 5.25 | V | - |
| Resolution | - | 12 | - | bits | - |
| Conversion Time | - | 7.5µs | - | - | - |
| Track/Hold Time | - | 1.5µs | - | - | - |
| Supply Current (IDD) | 1.4 | - | 3.8 | mA | VDD = 3.6V |
| Shutdown Current | 0.9 | - | 2.8 | µA | Power-down, digital inputs at 0V or VDD |
| Integral Nonlinearity (INL) | - | ±1 | - | LSB | - |
Key Features
- Low-power consumption: Only 37mW at 73ksps maximum sampling speed and a 2µA shutdown mode for reduced power at slower throughput rates.
- High-speed, 3-wire serial interface: Compatible with standard microcontroller I/O ports.
- Fast track/hold time: 1.5µs for quick signal acquisition.
- On-chip clock: Simplifies system design by eliminating the need for an external clock source.
- External reference input: The MAX1241 accepts signals from 0V to VREF, with the reference input range including the positive supply rail.
- Compact packaging: Available in 8-pin packages, making it suitable for space-constrained applications.
Applications
- Industrial automation: For precise measurement and control in industrial environments.
- Medical devices: Suitable for low-power, high-accuracy ADC requirements in medical equipment.
- Consumer electronics: Ideal for battery-powered devices requiring efficient and accurate analog-to-digital conversion.
- Aerospace and defense: Where low power consumption and high reliability are critical.
Q & A
- What is the supply voltage range for the MAX1241BEPA+? The supply voltage range is from +2.7V to +5.25V.
- What is the resolution of the MAX1241BEPA+ ADC? The resolution is 12 bits.
- How long does the MAX1241BEPA+ take to convert an analog signal to digital? The conversion time is 7.5µs.
- What is the track/hold time of the MAX1241BEPA+? The track/hold time is 1.5µs.
- Does the MAX1241BEPA+ have an internal clock? Yes, it has an on-chip clock.
- Can the MAX1241BEPA+ operate with an external reference? Yes, it accepts an external reference input.
- What is the power consumption of the MAX1241BEPA+ at maximum sampling speed? The power consumption is 37mW at 73ksps.
- How much current does the MAX1241BEPA+ consume in shutdown mode? The shutdown current is 2µA.
- What is the integral nonlinearity (INL) of the MAX1241BEPA+? The INL is ±1 LSB.
- In what package is the MAX1241BEPA+ available? It is available in an 8-pin package.
