Overview
The MAX187BCPA+ is a 12-bit, low-power, serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This component operates from a single +5V supply and is designed for applications where low power consumption and small package size are crucial. The MAX187BCPA+ features an 8.5Fs successive-approximation ADC, a fast track/hold circuit, an on-chip clock, and a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. It is ideal for remote DSP and sensor applications, as well as circuits where power consumption and space are critical factors.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Number of Bits | - | - | - | - | 12 | - |
| Sampling Rate | - | - | - | - | 75 ksps | - |
| Input Type | - | - | - | - | Single Ended | - |
| Supply Voltage | VDD | - | 4.75 | 5 | 5.25 | V |
| Supply Current (Operating) | IDD | - | 1.5 | 2.5 | mA | |
| Power Consumption (Shutdown) | - | - | - | - | 10 μA | - |
| Integral Nonlinearity | - | - | - | - | ±½ LSB | - |
| Track/Hold Acquisition Time | tACQ | - | - | 1.5 Fs | - | - |
Key Features
- 12-bit resolution with ±½ LSB integral nonlinearity (MAX187A/MAX189A)
- Internal track/hold circuit with a 75 kHz sampling rate
- Single +5V operation with low power consumption (7.5 mW in operating mode, 10 μA in shutdown)
- High-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols
- On-chip clock and external clock access for data retrieval
- Small package options: 8-pin PDIP and 16-pin SO packages
- Excellent AC characteristics, including -80 dB THD and 80 dB SFDR
Applications
The MAX187BCPA+ is suitable for various applications where low power consumption and compact design are essential. These include:
- Remote DSP and sensor applications
- Data acquisition systems, especially those requiring high-speed serial interfaces
- Circuits where power consumption and space are critical, such as in portable devices and embedded systems
Q & A
- What is the resolution of the MAX187BCPA+ ADC?
The MAX187BCPA+ has a 12-bit resolution
- What is the sampling rate of the MAX187BCPA+?
The sampling rate is 75 ksps
- What type of input does the MAX187BCPA+ accept?
The MAX187BCPA+ accepts single-ended analog inputs
- What is the supply voltage range for the MAX187BCPA+?
The supply voltage range is from 4.75V to 5.25V
- How much power does the MAX187BCPA+ consume in operating mode?
The power consumption in operating mode is 7.5 mW
- What is the power consumption in shutdown mode?
The power consumption in shutdown mode is 10 μA
- What kind of serial interface does the MAX187BCPA+ use?
The MAX187BCPA+ uses a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols
- What are the package options for the MAX187BCPA+?
The package options include 8-pin PDIP and 16-pin SO packages
- What are some typical applications for the MAX187BCPA+?
Typical applications include remote DSP and sensor applications, data acquisition systems, and circuits where power consumption and space are critical
- Is there an evaluation kit available for the MAX187BCPA+?
Yes, there is an evaluation kit (MAX187EVC16-DIP) available for comprehensive evaluation of the MAX187BCPA+
