Overview
The MAX1261, 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 successive-approximation ADC features automatic power-down, fast wake-up (2µs), an on-chip clock, and a +2.5V internal reference. It operates with a single +3V analog supply and supports a digital supply range of +1.8V to +5.5V through the VLOGIC pin.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Sampling Rate | 250 ksps | |
| Analog Supply Voltage | +3V | V |
| Digital Supply Voltage | +1.8V to +5.5V | V |
| Reference Voltage | +2.5V (internal) | V |
| Power Consumption | 5.7 mW (max sampling rate) | mW |
| Power-Down Current | < 10 µA | µA |
| Number of Input Channels | 8 (single-ended), 4 (pseudo-differential) | |
| Package Type | 28-pin QSOP | |
| Operating Temperature Range | 0°C to +70°C | °C |
Key Features
- Successive-approximation ADC architecture
- Automatic power-down and fast wake-up (2µs)
- On-chip clock and +2.5V internal reference
- High-speed, byte-wide parallel interface
- Software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differential operation
- Low power consumption with reduced power-down modes
- Compact 28-pin QSOP package
Applications
The MAX1261 is ideal for battery-powered and data-acquisition applications, as well as other circuits with demanding power consumption and space requirements. It is particularly suited for use in:
- Battery-powered devices
- Data-acquisition systems
- Space-constrained designs
- Low-power embedded systems
Q & A
- What is the resolution of the MAX1261 ADC?
The MAX1261 has a 12-bit resolution.
- What is the maximum sampling rate of the MAX1261?
The MAX1261 has a maximum sampling rate of 250 ksps.
- What is the analog supply voltage for the MAX1261?
The MAX1261 operates with a single +3V analog supply.
- What is the range of the digital supply voltage for the MAX1261?
The digital supply voltage range is +1.8V to +5.5V.
- What type of reference voltage does the MAX1261 use?
The MAX1261 uses a +2.5V internal reference voltage.
- How much power does the MAX1261 consume at maximum sampling rate?
The MAX1261 consumes 5.7 mW at the maximum sampling rate.
- What is the power-down current of the MAX1261?
The power-down current is less than 10 µA.
- How many input channels does the MAX1261 have?
The MAX1261 has 8 single-ended or 4 pseudo-differential input channels.
- What type of package is the MAX1261 available in?
The MAX1261 is available in a 28-pin QSOP package.
- What is the operating temperature range of the MAX1261?
The operating temperature range is 0°C to +70°C.
