Overview
The MAX1178ACUP+ is a 16-bit, low-power, successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed for high-performance, battery-powered data-acquisition applications. It operates from a single +4.75V to +5.25V analog supply and features a separate digital supply input for direct interface with +2.7V to +5.25V digital logic. The MAX1178ACUP+ is known for its excellent AC and DC performance, making it suitable for a variety of precision measurement tasks.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | Up to 135 ksps |
| Analog Supply Voltage | +4.75V to +5.25V |
| Digital Supply Voltage | +2.7V to +5.25V |
| Analog Input Voltage Range | ±5V |
| Power Consumption | 26.5 mW at 135 ksps (external reference), 31 mW (internal reference) |
| AutoShutdown Current | 0.4 mA at 10 ksps |
| Interface | Byte-wide parallel interface |
| Package | 20-pin TSSOP |
Key Features
- Successive-approximation (SAR) conversion technique with an inherent track-and-hold (T/H) stage.
- Automatic power-down and AutoShutdown™ to reduce power consumption.
- Factory-trimmed internal clock for precise timing.
- Input scaler allows conversion of true bipolar input voltages and input voltages greater than the power supply.
- Excellent AC performance with Total Harmonic Distortion (THD) of -100 dB.
- Byte-wide parallel interface for high-speed data transfer to microprocessors.
Applications
The MAX1178ACUP+ is ideal for high-performance, battery-powered data-acquisition applications. It is particularly suited for:
- Precision measurement systems.
- Portable medical devices.
- Industrial automation and control systems.
- Automotive and aerospace applications requiring high accuracy and low power consumption.
Q & A
- What is the resolution of the MAX1178ACUP+ ADC?
The MAX1178ACUP+ has a resolution of 16 bits.
- What is the sampling rate of the MAX1178ACUP+?
The MAX1178ACUP+ can sample at rates up to 135 ksps.
- What is the analog input voltage range of the MAX1178ACUP+?
The analog input voltage range is ±5V.
- How much power does the MAX1178ACUP+ consume?
The device consumes no more than 26.5 mW at 135 ksps when using an external reference, and 31 mW when using the internal reference.
- What is the purpose of the AutoShutdown™ feature?
The AutoShutdown™ feature reduces the supply current to 0.4 mA at 10 ksps to minimize power consumption during idle periods.
- What type of conversion technique does the MAX1178ACUP+ use?
The MAX1178ACUP+ uses a successive-approximation (SAR) conversion technique with an inherent track-and-hold (T/H) stage.
- What is the interface type of the MAX1178ACUP+?
The device features a byte-wide parallel interface for high-speed data transfer to microprocessors.
- What is the package type of the MAX1178ACUP+?
The MAX1178ACUP+ is packaged in a 20-pin TSSOP.
- What are some typical applications of the MAX1178ACUP+?
Typical applications include precision measurement systems, portable medical devices, industrial automation, and automotive/aerospace applications.
- How does the input scaler function in the MAX1178ACUP+?
The input scaler allows conversion of true bipolar input voltages and input voltages greater than the power supply by attenuating and shifting the analog input to match the input range of the internal DAC.
