Overview
The MAX187BEPA+ is a low-power, 12-bit serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component is designed for applications where power consumption and space are critical. It features a successive-approximation ADC with an internal track/hold circuit and an on-chip clock, enabling high-speed conversions. The MAX187BEPA+ is compatible with various digital interfaces, including SPI, QSPI, and MICROWIRE, making it versatile for integration with digital signal processors and microcontrollers.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 12 bits | ||||
| Integral Nonlinearity | ±½ LSB | ||||
| Sampling Rate | 75 kHz | ||||
| Supply Voltage | 4.75 | 5.0 | 5.25 | V | |
| Supply Current (Operating) | 1.5 | 2.0 | 2.5 | mA | |
| Supply Current (Power-down) | 2 | 10 | µA | ||
| Operating Temperature Range | -40 | 85 | °C | ||
| Storage Temperature Range | -60 | 150 | °C |
Key Features
- 12-bit resolution with ±½ LSB integral nonlinearity
- Internal track/hold circuit with a 1.5 Fs acquisition time and a 75 kHz sampling rate
- Single +5V operation with low power consumption (7.5 mW in operating mode and 10 µW in shutdown mode)
- High-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE
- On-chip clock and internal buffered reference (for MAX187)
- Compact 8-pin PDIP and 16-pin SO packages
- Excellent AC characteristics, including -80 dB THD and 80 dB SFDR
Applications
- Remote DSP and sensor applications where power consumption and space are crucial
- Data acquisition systems requiring low power and high accuracy
- Circuits where space and power efficiency are key, such as in industrial automation and medical devices
Q & A
- What is the resolution of the MAX187BEPA+ ADC?
The MAX187BEPA+ has a 12-bit resolution
- What is the sampling rate of the MAX187BEPA+?
The sampling rate is 75 kHz
- What is the power consumption of the MAX187BEPA+ in operating mode?
The power consumption is 7.5 mW in operating mode
- What is the power consumption of the MAX187BEPA+ in shutdown mode?
The power consumption is 10 µW in shutdown mode
- What types of packages are available for the MAX187BEPA+?
The MAX187BEPA+ is available in 8-pin PDIP and 16-pin SO packages
- Is the MAX187BEPA+ compatible with external references?
No, the MAX187 has an internal buffered reference, but the MAX189, a similar model, requires an external reference
- What are the operating temperature ranges for the MAX187BEPA+?
The operating temperature range is -40°C to +85°C
- What is the storage temperature range for the MAX187BEPA+?
The storage temperature range is -60°C to +150°C
- What interfaces is the MAX187BEPA+ compatible with?
The MAX187BEPA+ is compatible with SPI, QSPI, and MICROWIRE interfaces
- How does the MAX187BEPA+ handle shutdown?
The MAX187BEPA+ has a shutdown feature that reduces power consumption to 10 µW when activated
