Overview
The MAX1112EPP+ is a low-power, 8-bit, multi-channel analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device features an internal track/hold, voltage reference, clock, and a serial interface, making it suitable for a variety of applications requiring precise and efficient analog-to-digital conversion. The MAX1112EPP+ operates from a single 4.5V to 5.5V supply and is known for its low power consumption, with a current draw of only 135µA while sampling at rates up to 50ksps.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Number of A/D Converters | 1 |
| Sampling Rate (Per Second) | 50k |
| Number of Inputs | 4, 8 |
| Input Type | Differential, Single Ended |
| Data Interface | SPI |
| Configuration | MUX-S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Architecture | SAR |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Through Hole |
| Package/Case | 20-PDIP |
Key Features
- Low power consumption: 135µA at 50ksps and 13µA at 1ksps in power-down mode.
- Internal track/hold, voltage reference, and clock.
- Software-configurable unipolar or bipolar inputs and single-ended or differential operation.
- SPI, QSPI, and MICROWIRE-compatible serial interface.
- Serial-strobe output for end-of-conversion signal.
- Automatic power-down mode to minimize power consumption.
- Internal 4.096V reference or externally applied reference from 1V to VDD.
Applications
- Portable data logging and hand-held measurement devices.
- Medical instruments.
- System diagnostics.
- Solar-powered remote systems.
- 4mA to 20mA-powered remote data-acquisition systems.
Q & A
- What is the resolution of the MAX1112EPP+ ADC?
The MAX1112EPP+ is an 8-bit analog-to-digital converter.
- How many analog inputs does the MAX1112EPP+ have?
The MAX1112EPP+ has 8 analog inputs, which can be configured as single-ended or differential inputs.
- What is the sampling rate of the MAX1112EPP+?
The MAX1112EPP+ can sample at rates up to 50ksps.
- What is the power supply range for the MAX1112EPP+?
The MAX1112EPP+ operates from a single 4.5V to 5.5V supply.
- What type of serial interface does the MAX1112EPP+ use?
The MAX1112EPP+ uses a SPI, QSPI, and MICROWIRE-compatible serial interface.
- Does the MAX1112EPP+ have an internal voltage reference?
Yes, the MAX1112EPP+ has an internal 4.096V voltage reference, but it also supports an externally applied reference.
- How does the MAX1112EPP+ manage power consumption?
The MAX1112EPP+ has a software-programmable power-down mode that reduces supply current to 13µA at 1ksps and 82µA at 10ksps.
- What is the operating temperature range of the MAX1112EPP+?
The MAX1112EPP+ operates over a temperature range of -40°C to 85°C.
- What package type is the MAX1112EPP+ available in?
The MAX1112EPP+ is available in a 20-pin PDIP package.
- Is the MAX1112EPP+ suitable for portable applications?
Yes, the MAX1112EPP+ is suitable for portable applications due to its low power consumption and compact design.
