Overview
The MAX1415EWE is a 16-bit, low-power, 2-channel, sigma-delta analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device is designed to offer high-resolution conversion with no missing codes, making it suitable for a variety of precision measurement applications. The MAX1415EWE is pin-compatible with the MX7705/AD7705 and features an internal oscillator, an on-chip input buffer, and a programmable gain amplifier (PGA). It supports SPI-, QSPI-, and MICROWIRE-compatible serial interfaces, enhancing its versatility in different system designs.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 16 bits | ||||
| Power Supply Voltage (VDD) | 2.7 | 3.6 | V | ||
| Internal Clock Frequency (fCLK) | CLK = 0 or 1 | 1 MHz or 2.4576 MHz | |||
| External Reference Input Range (VREF) | 1 | 3.5 | V | ||
| Digital Input High Voltage (VIH) | 2 | V | |||
| Digital Input Low Voltage (VIL) | 0.8 | V | |||
| Digital Output Low Voltage (VOL) | ISINK = 800µA | 0.4 | V |
Key Features
- High Resolution: 16-bit resolution with no missing codes, ensuring high accuracy in measurements.
- Low Power Consumption: Designed for low power operation, making it suitable for battery-powered and energy-efficient systems.
- Programmable Gain Amplifier (PGA): Allows for adjustable gain settings to accommodate various input signal levels.
- Internal Oscillator: Offers internal clock frequencies of 1 MHz or 2.4576 MHz, reducing the need for external clock sources.
- On-Chip Input Buffer: Enhances signal integrity and reduces noise susceptibility.
- Serial Interface Compatibility: Supports SPI, QSPI, and MICROWIRE interfaces for flexible system integration.
- Multiple Package Options: Available in 16-pin PDIP, SO, and TSSOP packages to fit various design requirements.
Applications
- Industrial Instruments: Suitable for precision measurement and control in industrial settings.
- Weigh Scales: Used in weight measurement applications requiring high accuracy.
- Strain-Gauge Measurements: Ideal for strain-gauge based measurements in various industrial and medical applications.
- Loop-Powered Systems: Compatible with loop-powered systems, which are common in process control and automation.
- Flow and Gas Meters: Used in flow and gas measurement applications where precision is critical.
- Medical Instrumentation: Suitable for medical devices requiring accurate and reliable analog-to-digital conversion.
- Pressure Transducers: Used in pressure measurement applications across various industries.
- Thermocouple and RTD Measurements: Ideal for temperature measurements using thermocouples and RTDs.
Q & A
- What is the resolution of the MAX1415EWE ADC?
The MAX1415EWE has a 16-bit resolution with no missing codes.
- What are the power supply voltage ranges for the MAX1415EWE?
The power supply voltage range is from 2.7V to 3.6V.
- What are the available internal clock frequencies for the MAX1415EWE?
The internal clock frequencies are 1 MHz or 2.4576 MHz.
- Does the MAX1415EWE have an on-chip input buffer?
Yes, the MAX1415EWE features an on-chip input buffer.
- What types of serial interfaces does the MAX1415EWE support?
The MAX1415EWE supports SPI, QSPI, and MICROWIRE serial interfaces.
- In what packages is the MAX1415EWE available?
The MAX1415EWE is available in 16-pin PDIP, SO, and TSSOP packages.
- What are some common applications of the MAX1415EWE?
Common applications include industrial instruments, weigh scales, strain-gauge measurements, loop-powered systems, flow and gas meters, medical instrumentation, pressure transducers, and thermocouple and RTD measurements.
- Does the MAX1415EWE have a programmable gain amplifier (PGA)?
Yes, the MAX1415EWE features a programmable gain amplifier (PGA).
- What is the typical power consumption of the MAX1415EWE?
The MAX1415EWE is designed for low power consumption, but specific values depend on the operating conditions and can be found in the detailed datasheet.
- Is the MAX1415EWE compatible with other ADC models?
The MAX1415EWE is pin-compatible with the MX7705/AD7705.
