Overview
The MAX195, produced by Analog Devices Inc./Maxim Integrated, is a 16-bit successive-approximation analog-to-digital converter (ADC) known for its high speed, high accuracy, and low power consumption. This component is designed to provide reliable performance across a wide operating temperature range without the need for external adjustments, thanks to its internal calibration circuitry. The MAX195 supports both unipolar and bipolar input ranges and features separate analog and digital supplies to minimize digital noise coupling.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | 85 ksps |
| Input Range | Unipolar (0V to VREF), Bipolar (-VREF to VREF) |
| Reference Voltage | Up to +5V |
| Power Consumption (Active) | |
| Shutdown Current | 10 µA |
| Differential Nonlinearity (DNL) | ±2 LSB |
| Operating Temperature Range | TMIN to TMAX (specified in datasheet) |
| Supply Voltages | VDDD = 4.75V to 5.25V, VSSD = -5V |
| Serial Clock Frequency | Up to 5 Mbps |
Key Features
- High-speed conversion with 85 ksps sampling rate
- Internal calibration for linearity and offset correction
- Low power consumption with 10 µA shutdown mode
- Pin-selectable unipolar or bipolar input range
- Separate analog and digital supplies to reduce digital noise coupling
- Capacitive-DAC architecture for inherent track/hold function
- Serial data output with up to 5 Mbps clock frequency
- End-of-conversion (EOC) output for interrupting a processor
Applications
The MAX195 is suitable for a variety of applications requiring high accuracy and low power consumption, such as:
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Data acquisition systems
Q & A
- What is the resolution of the MAX195 ADC?
The MAX195 has a resolution of 16 bits. - What is the sampling rate of the MAX195?
The MAX195 has a sampling rate of 85 ksps. - What are the input range options for the MAX195?
The MAX195 supports both unipolar (0V to VREF) and bipolar (-VREF to VREF) input ranges. - What is the reference voltage range for the MAX195?
The reference voltage for the MAX195 can be up to +5V. - How much power does the MAX195 consume in active mode?
The MAX195 typically consumes 15 mA at VDDD = 5V in active mode. - What is the shutdown current of the MAX195?
The shutdown current of the MAX195 is 10 µA. - What is the differential nonlinearity (DNL) of the MAX195?
The DNL of the MAX195 is ±2 LSB. - What is the operating temperature range of the MAX195?
The operating temperature range is specified in the datasheet as TMIN to TMAX. - What are the supply voltage ranges for the MAX195?
The supply voltage ranges are VDDD = 4.75V to 5.25V and VSSD = -5V. - What is the maximum serial clock frequency for the MAX195?
The maximum serial clock frequency for the MAX195 is up to 5 Mbps.
