Overview
The MAX1284ACSA+T is a 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device combines a high-bandwidth track/hold (T/H) circuit, a serial interface with high conversion speed, an internal +2.5V reference, and low power consumption. It operates from a single +4.5V to +5.5V supply, making it suitable for a variety of applications requiring high-speed data acquisition and low power consumption.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | 4.5 | 5.5 | V | ||
| Conversion Rate | 300 | 400 | ksps | ||
| Resolution | 12 | bits | |||
| Input Voltage Range (AIN) | 0 | 2.5 | V | ||
| Internal Reference Voltage (VREF) | 2.48 | 2.50 | 2.52 | V | |
| Signal-to-Noise Plus Distortion Ratio (SINAD) | 100kHz sine wave, 2.5VP-P, clock = 6.4MHz | 70 | dB | ||
| Total Harmonic Distortion (THD) | Up to the 5th harmonic | -80 | dB | ||
| Full-Power Bandwidth | -3dB point | 6 | MHz | ||
| Serial Clock Frequency (fSCLK) | 0.5 | 6.4 | MHz | ||
| Package Type | 8-pin SO |
Key Features
- High-bandwidth track/hold (T/H) circuit and successive-approximation register (SAR) circuitry for high-speed conversions.
- Internal +2.5V reference voltage.
- Low power consumption, making it ideal for remote-sensor and data-acquisition applications.
- 3-wire serial interface compatible with SPI™/QSPI™/MICROWIRE™ devices without external logic.
- Small 8-pin SO package for space-efficient designs.
- Pin-compatible with higher-speed versions of the MAX1240/MAX1241.
Applications
- Remote-sensor applications.
- Data-acquisition systems.
- Circuits with demanding power consumption and space requirements.
- Industrial automation and control systems.
- Medical devices and diagnostic equipment.
Q & A
- What is the resolution of the MAX1284ACSA+T ADC?
The MAX1284ACSA+T has a resolution of 12 bits.
- What is the operating voltage range of the MAX1284ACSA+T?
The MAX1284ACSA+T operates from a single +4.5V to +5.5V supply.
- What is the conversion rate of the MAX1284ACSA+T?
The conversion rate is up to 400ksps.
- Does the MAX1284ACSA+T have an internal reference voltage?
Yes, it has an internal +2.5V reference voltage.
- What type of serial interface does the MAX1284ACSA+T use?
The MAX1284ACSA+T uses a 3-wire serial interface compatible with SPI™/QSPI™/MICROWIRE™ devices.
- What is the package type of the MAX1284ACSA+T?
The MAX1284ACSA+T is available in an 8-pin SO package.
- What are some typical applications of the MAX1284ACSA+T?
Typical applications include remote-sensor and data-acquisition systems, and circuits with demanding power consumption and space requirements.
- How does the MAX1284ACSA+T manage power consumption?
The MAX1284ACSA+T is designed for low power consumption, making it suitable for battery-powered and power-sensitive applications.
- Is the MAX1284ACSA+T pin-compatible with other ADC models?
Yes, it is pin-compatible with higher-speed versions of the MAX1240/MAX1241.
- What is the full-power bandwidth of the MAX1284ACSA+T?
The full-power bandwidth is up to 6 MHz.
