Overview
The MAX1117EKA+ is a single-supply, low-power, 2-channel, serial 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is part of the MAX1117/MAX1118/MAX1119 family and is known for its high efficiency and compact design. It features an internal track/hold (T/H) voltage reference, clock, and a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE devices. The MAX1117EKA+ operates within a voltage range of +2.7V to +3.6V and consumes only 175µA at a sampling rate of 100ksps, making it suitable for power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 8 |
| Sampling Rate | Up to 100ksps |
| Number of Inputs | 2 (dual-channel) |
| Input Type | Single-ended |
| Data Interface | SPI, QSPI, MICROWIRE |
| Reference Type | Internal (2.048V for MAX1117) |
| Voltage - Supply, Analog/Digital | +2.7V to +3.6V |
| Operating Temperature | -40°C to +85°C |
| Package | SOT-23-8 |
| Mounting Type | Surface Mount |
| Power Consumption at 100ksps | 175µA |
| Shutdown Current | < 1µA |
Key Features
- Low power consumption: 175µA at 100ksps and < 1µA in shutdown mode.
- Internal track/hold (T/H) voltage reference and clock.
- 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE.
- Dual-channel operation with single-ended inputs.
- Compact SOT-23-8 package.
- Automatic shutdown mode to reduce power consumption when not in use.
- High accuracy with relative accuracy of ±1 LSB and differential nonlinearity of ±1 LSB.
Applications
The MAX1117EKA+ is suitable for a variety of applications where low power consumption and high accuracy are critical. These include:
- Battery-powered devices and portable electronics.
- Industrial control and automation systems.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense applications where power efficiency is paramount.
- Data acquisition systems in various fields such as environmental monitoring and automotive systems.
Q & A
- What is the operating voltage range of the MAX1117EKA+?
The MAX1117EKA+ operates within a voltage range of +2.7V to +3.6V. - How many channels does the MAX1117EKA+ have?
The MAX1117EKA+ is a dual-channel ADC. - What is the maximum sampling rate of the MAX1117EKA+?
The maximum sampling rate is up to 100ksps. - What type of data interface does the MAX1117EKA+ use?
The MAX1117EKA+ uses a 3-wire serial interface compatible with SPI, QSPI, and MICROWIRE. - What is the power consumption of the MAX1117EKA+ at 100ksps?
The power consumption is 175µA at 100ksps. - How does the MAX1117EKA+ reduce power consumption when not in use?
The device features an automatic shutdown mode that reduces supply current to < 1µA when not in use. - What is the operating temperature range of the MAX1117EKA+?
The operating temperature range is -40°C to +85°C. - What type of package does the MAX1117EKA+ come in?
The MAX1117EKA+ comes in an SOT-23-8 package. - Is the MAX1117EKA+ RoHS compliant?
Yes, the MAX1117EKA+ is RoHS compliant. - What is the resolution of the MAX1117EKA+?
The resolution is 8 bits.
