Overview
The MAX1187BEUI+ is a 16-bit, low-power, successive-approximation analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1179/MAX1187/MAX1189 family and is designed for high-performance, battery-powered data-acquisition applications. It features a single +4.75V to +5.25V analog supply voltage and a separate digital supply input for direct interface with +2.7V to +5.25V digital logic. The MAX1187BEUI+ is particularly suited for applications requiring high DC accuracy and excellent AC performance, such as industrial process control, instrumentation, and medical devices.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Analog Input Voltage Range | 0 | - | +10V | V |
| Resolution | - | - | 16 Bits | - |
| Sampling Rate | - | - | 135ksps | - |
| Analog Supply Voltage (AVDD) | 4.75 | 5.25 | - | V |
| Digital Supply Voltage (DVDD) | 2.70 | 5.25 | - | V |
| Analog Supply Current (IAVDD) | - | 3.8 | 5.2 | mA |
| Shutdown Supply Current (ISHDN) | - | - | 0.4mA | mA |
| Integral Nonlinearity (INL) | -4 | - | +4 LSB | - |
| Signal-to-Noise Plus Distortion (SINAD) | 86 | 90 | - | dB |
| Total Harmonic Distortion (THD) | -100 | -92 | - | dB |
| Operating Temperature Range | -40°C | - | +85°C | °C |
Key Features
- Analog Input Voltage Range: 0 to +10V, ±5V, or ±10V depending on the model variant.
- 16-bit wide parallel interface for high-resolution data transfer.
- Single +4.75V to +5.25V analog supply voltage and separate digital supply input for +2.7V to +5.25V digital logic.
- Low power consumption: 23mW at 135ksps with external reference, and 29mW with internal reference.
- AutoShutdown feature reduces supply current to 0.4mA at 10ksps.
- Excellent AC performance with SINAD of 86dB to 90dB and THD of -100dB to -92dB.
- High DC accuracy with INL of ±4LSB.
- Available in a 28-pin TSSOP package.
- Fully specified over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.
Applications
- Industrial process control: The MAX1187BEUI+ is ideal for applications requiring precise measurement and control in industrial settings.
- Precision instrumentation: Its high accuracy and low noise make it suitable for various instrumentation applications.
- Medical devices: The device's high performance and reliability make it a good fit for medical equipment that requires accurate data acquisition.
- Data-acquisition systems: It is well-suited for battery-powered data-acquisition systems due to its low power consumption.
- Temperature sensing and monitoring: The device can be used in temperature sensing applications due to its high accuracy and stability.
Q & A
- What is the analog input voltage range of the MAX1187BEUI+?
The MAX1187BEUI+ accepts an analog input voltage range from 0 to +10V.
- What is the resolution of the MAX1187BEUI+?
The MAX1187BEUI+ has a resolution of 16 bits.
- What is the sampling rate of the MAX1187BEUI+?
The MAX1187BEUI+ has a sampling rate of up to 135ksps.
- What is the power consumption of the MAX1187BEUI+ at 135ksps?
The device consumes 23mW at 135ksps with an external reference and 29mW with the internal reference.
- What is the AutoShutdown feature of the MAX1187BEUI+?
The AutoShutdown feature reduces the supply current to 0.4mA at 10ksps.
- What are the typical operating temperature ranges for the MAX1187BEUI+?
The device is fully specified over the -40°C to +85°C extended temperature range and the 0°C to +70°C commercial temperature range.
- What is the package type of the MAX1187BEUI+?
The MAX1187BEUI+ is available in a 28-pin TSSOP package.
- What are some common applications of the MAX1187BEUI+?
Common applications include industrial process control, precision instrumentation, medical devices, and data-acquisition systems.
- How does the MAX1187BEUI+ interface with digital logic?
The device has a separate digital supply input for direct interface with +2.7V to +5.25V digital logic.
- What is the AC performance of the MAX1187BEUI+?
The device has excellent AC performance with a SINAD of 86dB to 90dB and THD of -100dB to -92dB.
