Overview
The MAX1112CPP+ is a low-power, 8-bit, multi-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1112 series, known for its high performance and low power consumption. The MAX1112CPP+ features an internal track/hold, voltage reference, clock, and serial interface, making it suitable for a variety of applications requiring precise analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Sampling Rate | Up to 50 ksps |
| Number of Inputs | 8 (single-ended or 4 differential) |
| Input Type | Single-ended or differential |
| Data Interface | SPI, QSPI, MICROWIRE |
| Supply Voltage | 4.5V to 5.5V |
| Power Consumption | 135µA at 50ksps, 13µA at 1ksps |
| Operating Temperature Range | 0°C to +70°C (MAX1112CAP), -40°C to +85°C (MAX1112EAP) |
| Package Type | 20-pin SSOP |
Key Features
- Internal track/hold, voltage reference, and clock
- Software-configurable unipolar or bipolar inputs
- Single-ended or differential input operation
- SPI, QSPI, and MICROWIRE-compatible serial interface
- Low power consumption: 135µA at 50ksps, 13µA at 1ksps
- Automatic power-down mode to minimize power consumption
- Serial-strobe output for end-of-conversion signal
Applications
The MAX1112CPP+ is suitable for various applications requiring low-power, high-precision analog-to-digital conversion. These include:
- Data-acquisition systems
- Remote sensing and monitoring systems
- Industrial control systems
- Medical devices requiring low power consumption
- Automotive and aerospace applications where low power and high reliability are crucial
Q & A
- What is the sampling rate of the MAX1112CPP+?
The MAX1112CPP+ can sample at rates up to 50 ksps. - How many analog inputs does the MAX1112CPP+ have?
The MAX1112CPP+ has 8 analog inputs, which can be configured as single-ended or differential inputs. - What is the power consumption of the MAX1112CPP+ at 50 ksps?
The power consumption is 135µA at 50 ksps. - What are the supported serial interfaces for the MAX1112CPP+?
The device supports SPI, QSPI, and MICROWIRE serial interfaces. - What is the operating temperature range for the MAX1112CPP+?
The operating temperature range is 0°C to +70°C for the MAX1112CAP and -40°C to +85°C for the MAX1112EAP. - How is power-down controlled in the MAX1112CPP+?
Power-down can be controlled using the active-low SHDN input pin or through software. - What is the package type of the MAX1112CPP+?
The MAX1112CPP+ is available in a 20-pin SSOP package. - Can the MAX1112CPP+ operate with an external reference voltage?
Yes, the full-scale analog input range can be determined by an externally applied reference ranging from 1V to VDD. - What is the total unadjusted error of the MAX1112CPP+?
The total unadjusted error is ±1 LSB (max) and ±0.3 LSB (typ). - How does the serial-strobe output work?
The serial-strobe output provides the end-of-conversion signal for interrupt-driven processors.
