Overview
The MAX1284BCSA+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. The MAX1284 operates from a single +4.5V to +5.5V supply, making it suitable for a variety of applications requiring high precision and low power usage.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Resolution | 12 bits | |
| Conversion Rate | Up to 400 ksps (MAX1284), up to 300 ksps (MAX1285) | |
| Supply Voltage | +4.5V to +5.5V (MAX1284), +2.7V to +3.6V (MAX1285) | |
| Input Voltage Range | 0 to 2.5V | |
| Input Capacitance | 18 pF | |
| Signal-to-Noise Plus Distortion Ratio (SINAD) | 70 dB | At 100kHz sine wave, 2.5VP-P |
| Total Harmonic Distortion (THD) | -80 dB | Up to the 5th harmonic |
| Spurious-Free Dynamic Range (SFDR) | 80 dB | |
| Full-Power Bandwidth | 6 MHz | -3dB point |
| Track/Hold Acquisition Time | 468 ns | |
| Aperture Delay | 10 ns | |
| Aperture Jitter | < 50 ps | |
| Serial Clock Frequency | Up to 6.4 MHz (MAX1284), up to 4.8 MHz (MAX1285) | |
| Operating Temperature | 0°C to 70°C | |
| Package | 8-pin SOIC |
Key Features
- High-bandwidth track/hold (T/H) circuitry and successive-approximation register (SAR) 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 package size (8-pin SOIC) suitable for space-constrained applications.
- 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 requiring high precision and low power consumption.
Q & A
- What is the resolution of the MAX1284BCSA+T ADC?
The MAX1284BCSA+T has a 12-bit resolution.
- What are the operating supply voltage ranges for the MAX1284 and MAX1285?
The MAX1284 operates from +4.5V to +5.5V, while the MAX1285 operates from +2.7V to +3.6V.
- What is the maximum conversion rate of the MAX1284 and MAX1285?
The MAX1284 can convert up to 400 ksps, and the MAX1285 can convert up to 300 ksps.
- What is the input voltage range for the MAX1284BCSA+T?
The input voltage range is 0 to 2.5V.
- What is the signal-to-noise plus distortion ratio (SINAD) of the MAX1284BCSA+T?
The SINAD is 70 dB at a 100kHz sine wave with 2.5VP-P.
- What is the package type of the MAX1284BCSA+T?
The device is packaged in an 8-pin SOIC.
- What is the operating temperature range of the MAX1284BCSA+T?
The operating temperature range is 0°C to 70°C.
- Is the MAX1284BCSA+T compatible with SPI/QSPI/MICROWIRE interfaces?
- What are some typical applications of the MAX1284BCSA+T?
Typical applications include remote-sensor and data-acquisition systems, as well as circuits with demanding power consumption and space requirements.
- Does the MAX1284BCSA+T have an internal reference voltage?
