Overview
The MAX1274AETC+ is a high-performance, low-power, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1274/MAX1275 series, known for its high-speed conversion rates and true-differential input capabilities. The MAX1274AETC+ operates from a single supply voltage and is designed to provide excellent noise immunity, distortion improvements, and a wider dynamic range compared to single-ended input ADCs.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Sampling Rate | 1.8 | Msps | |||
| Power Dissipation | 45 | mW | |||
| Shutdown Current | 1 | µA | |||
| Supply Voltage | 4.75 | 5.25 | V | ||
| Analog Input Range (MAX1274) | 0 | VREF | V | ||
| Analog Input Range (MAX1275) | -VREF/2 | +VREF/2 | V | ||
| Signal-to-Noise Ratio (SNR) | fIN = 525kHz | 70.82 | dB | ||
| Spurious-Free Dynamic Range (SFDR) | fIN = 100kHz | 87.07 | dB | ||
| Total Harmonic Distortion (THD) | fIN = 100kHz | -88.63 | dB | ||
| Full-Power Bandwidth | 20 | MHz | |||
| Track-and-Hold Acquisition Time | 104 | ns | |||
| Aperture Delay | 5 | ns | |||
| Aperture Jitter | 30 | ps | |||
| External Clock Frequency | 28.8 | MHz |
Key Features
- High-speed sampling rate of up to 1.8 Msps
- Low power dissipation of 45mW (typ)
- True-differential inputs for improved noise immunity and dynamic range
- High-speed, SPI-compatible, 3-wire serial interface
- External reference input
- No pipeline delays
- Partial and full power-down modes for reduced power consumption
- Separate power-supply input (VL) for direct interfacing to +1.8V to VDD digital logic
- Small 12-pin TQFN package
- Operating temperature range of -40°C to +85°C
Applications
- Industrial process control
- Motor control
- Base-station applications
- Bill validation
- Communications
- Data acquisition
- Portable instrumentation
Q & A
- What is the maximum sampling rate of the MAX1274AETC+?
The MAX1274AETC+ has a maximum sampling rate of 1.8 Msps.
- What is the typical power dissipation of the MAX1274AETC+?
The typical power dissipation is 45mW.
- What type of analog input does the MAX1274AETC+ have?
The MAX1274AETC+ has a unipolar analog input, while the MAX1275 has a bipolar analog input.
- What is the supply voltage range for the MAX1274AETC+?
The supply voltage range is from +4.75V to +5.25V.
- Does the MAX1274AETC+ require an external reference?
Yes, the MAX1274AETC+ requires an external reference.
- What is the shutdown current of the MAX1274AETC+ in full power-down mode?
The shutdown current in full power-down mode is 1µA (max).
- What is the track-and-hold acquisition time of the MAX1274AETC+?
The track-and-hold acquisition time is 104 ns.
- What is the aperture delay of the MAX1274AETC+?
The aperture delay is 5 ns.
- What is the aperture jitter of the MAX1274AETC+?
The aperture jitter is 30 ps.
- What are some common applications of the MAX1274AETC+?
Common applications include industrial process control, motor control, base-station applications, bill validation, communications, data acquisition, and portable instrumentation.
