Overview
The MAX1118 is a low-power, 8-bit, dual-channel, analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1117/MAX1118/MAX1119 family, known for their high efficiency and compact design. The MAX1118 is optimized for single-supply operation and features an internal track/hold (T/H) voltage reference, clock, and a serial interface, making it ideal for various data-acquisition applications.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Supply Voltage Range | +2.7V to +5.5V | |
| Power Consumption | 135µA at 100ksps | |
| Resolution | 8-bit | |
| Conversion Rate | Up to 100ksps | Using internal clock |
| Analog Input Range | Externally applied reference from +1V to VDD | |
| Shutdown Current | < 1µA | Automatic shutdown mode |
| Package | 8-pin SOT23 | |
| Operating Temperature Range | -40°C to +85°C | |
| Serial Interface | 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™ |
Key Features
- Low power consumption: 135µA at 100ksps
- Single-supply operation: +2.7V to +5.5V
- Internal track/hold (T/H) voltage reference and clock
- 3-wire serial interface compatible with SPI™, QSPI™, and MICROWIRE™
- Automatic shutdown mode reducing supply current to < 1µA
- Compact 8-pin SOT23 package
- High-speed conversions up to 100ksps using an internal clock
Applications
- Data-acquisition systems
- Process control
- Panel meters
- Temperature measurement
- Battery-powered devices
- Remote sensing applications
Q & A
- What is the supply voltage range for the MAX1118?
The MAX1118 operates from a single supply voltage ranging from +2.7V to +5.5V.
- How much power does the MAX1118 consume at 100ksps?
The MAX1118 consumes 135µA at a conversion rate of 100ksps.
- What is the resolution of the MAX1118 ADC?
The MAX1118 is an 8-bit analog-to-digital converter.
- What is the maximum conversion rate of the MAX1118?
The MAX1118 can perform conversions up to 100ksps using its internal clock.
- What is the analog input range for the MAX1118?
The full-scale analog input range can be determined by an externally applied reference ranging from +1V to VDD.
- How does the MAX1118 manage power in standby mode?
The MAX1118 features an automatic shutdown mode that reduces the supply current to less than 1µA when the device is not in use.
- What type of package is the MAX1118 available in?
The MAX1118 is available in an 8-pin SOT23 package.
- What is the operating temperature range for the MAX1118?
The MAX1118 operates over a temperature range of -40°C to +85°C.
- Is the MAX1118 compatible with standard serial interfaces?
Yes, the MAX1118 features a 3-wire serial interface that is compatible with SPI™, QSPI™, and MICROWIRE™ standards.
- What are some common applications for the MAX1118?
The MAX1118 is commonly used in data-acquisition systems, process control, panel meters, temperature measurement, and battery-powered devices.
