Overview
The MAX1277ACTC+T, produced by Analog Devices Inc./Maxim Integrated, is a high-performance, low-power, 12-bit analog-to-digital converter (ADC) designed for a variety of applications requiring high-speed and accurate analog-to-digital conversion. This device operates at up to 1.5 million samples per second (Msps) and features true-differential inputs, which provide better noise immunity, distortion improvements, and a wider dynamic range compared to single-ended inputs. The MAX1277ACTC+T is part of the MAX1277/MAX1279 family, with the MAX1277 model specifically offering a unipolar analog input.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Sampling Rate | fS | 1.5 | 1.5 | 1.5 | Msps | |
| Resolution | 12 | bits | ||||
| Supply Voltage | VDD | 2.7 | 3.6 | V | ||
| Internal Reference Voltage | REF | Static, TA = +25°C | 2.038 | 2.048 | 2.058 | V |
| Power Dissipation | 22 | mW | ||||
| Shutdown Current | Full power-down mode | 1 | µA | |||
| Input Voltage Range (Differential) | VIN | MAX1277 | 0 | VREF | V | |
| Input Capacitance Per Input Pin | 16 | pF | ||||
| Operating Temperature Range | TA | -40 | 85 | °C |
Key Features
- High-speed, 1.5Msps sampling rate
- True-differential analog inputs for better noise immunity and distortion improvements
- Internal 2.048V reference voltage
- Low power dissipation: 22mW typical
- Low shutdown current: 1µA maximum in full power-down mode
- Standard SPI™/QSPI™/MICROWIRE™ interface for easy integration with DSPs and microcontrollers
- Partial and full power-down modes for reduced power consumption between conversions
- Separate power-supply input (VL) for direct interfacing to +1.8V to VDD digital logic
- Small 12-pin TQFN package
- Extended temperature range: -40°C to +85°C
Applications
- Industrial process control
- Motor control
- Base-station applications
- Data acquisition
- Communications
- Bill validation
- Portable instrumentation
Q & A
- What is the sampling rate of the MAX1277ACTC+T?
The MAX1277ACTC+T has a sampling rate of up to 1.5 Msps.
- What type of analog inputs does the MAX1277ACTC+T feature?
The MAX1277ACTC+T features true-differential analog inputs.
- What is the internal reference voltage of the MAX1277ACTC+T?
The internal reference voltage is 2.048V.
- What is the typical power dissipation of the MAX1277ACTC+T?
The typical power dissipation is 22mW.
- What are the power-down modes available in the MAX1277ACTC+T?
The device features partial and full power-down modes.
- What is the shutdown current in full power-down mode?
The shutdown current in full power-down mode is 1µA maximum.
- What interface does the MAX1277ACTC+T use for data transfer?
The device uses a standard SPI™/QSPI™/MICROWIRE™ interface.
- What is the operating temperature range of the MAX1277ACTC+T?
The operating temperature range is -40°C to +85°C.
- In what package is the MAX1277ACTC+T available?
The device is available in a 12-pin TQFN package.
- What are some common applications for the MAX1277ACTC+T?
Common applications include industrial process control, motor control, base-station applications, data acquisition, communications, bill validation, and portable instrumentation.
