Overview
The MAX189CCPA+ is a 12-bit serial analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device operates from a single +5V supply and is designed for low-power applications. It features an 8.5 clock cycle successive-approximation ADC, a fast track/hold circuit, and an on-chip clock. The MAX189CCPA+ communicates through a high-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols. This ADC is ideal for remote DSP and sensor applications where power consumption and space are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Supply Voltage | +5V ±5% | V |
| Analog Input Range | 0 to 5V | V |
| Conversion Rate | 75 ksps | samples per second |
| Conversion Time | 5.5 to 8.5 clock cycles | |
| Track/Hold Acquisition Time | 1.5 clock cycles | |
| Integral Nonlinearity (INL) | ±½ LSB | |
| Power Consumption | 7.5 mW (active), 10 fW (shutdown) | W |
| Package Types | 8-pin PDIP, 16-pin SO |
Key Features
- 12-bit resolution with ±½ LSB integral nonlinearity
- Single +5V operation with low power consumption (7.5 mW active, 10 fW shutdown)
- High-speed 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE protocols
- Fast track/hold circuit with 1.5 clock cycle acquisition time
- On-chip clock and external clock capability
- Small package options (8-pin PDIP and 16-pin SO)
- External reference voltage range from +2.5V to VDD
Applications
The MAX189CCPA+ is suitable for various applications where low power consumption and high accuracy are required. These include:
- Remote DSP and sensor applications
- Circuits where power consumption and space are critical
- Industrial and automotive systems
- Consumer electronics requiring precise analog-to-digital conversion
Q & A
- What is the resolution of the MAX189CCPA+ ADC?
The MAX189CCPA+ has a 12-bit resolution.
- What is the operating supply voltage for the MAX189CCPA+?
The MAX189CCPA+ operates from a single +5V supply.
- What is the conversion rate of the MAX189CCPA+?
The MAX189CCPA+ has a conversion rate of 75 ksps.
- What types of serial interfaces does the MAX189CCPA+ support?
The MAX189CCPA+ supports SPI, QSPI, and MICROWIRE protocols.
- What is the power consumption of the MAX189CCPA+ in active and shutdown modes?
The power consumption is 7.5 mW in active mode and 10 fW in shutdown mode.
- What are the package options available for the MAX189CCPA+?
The MAX189CCPA+ is available in 8-pin PDIP and 16-pin SO packages.
- Does the MAX189CCPA+ require an external reference voltage?
- What is the integral nonlinearity (INL) of the MAX189CCPA+?
The integral nonlinearity (INL) is ±½ LSB.
- What is the track/hold acquisition time for the MAX189CCPA+?
The track/hold acquisition time is 1.5 clock cycles.
- In what types of applications is the MAX189CCPA+ commonly used?
The MAX189CCPA+ is commonly used in remote DSP and sensor applications, and in circuits where power consumption and space are critical.
