Overview
The MAX1415EUE+T is a low-power, 2-channel, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc./Maxim Integrated. This device utilizes a sigma-delta modulator with a digital filter to achieve high-resolution conversions. It is designed to be a pin-compatible upgrade to the MX7705/AD7705 and features an internal oscillator, an on-chip input buffer, and a programmable gain amplifier (PGA). The MAX1415EUE+T is suitable for various applications requiring precise and reliable analog-to-digital conversion.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|---|
| Operating Supply Voltage | VDD | 2.7 | 3.6 | V | ||
| Input Capacitance (Gain = 1) | AIN | 34 | pF | |||
| Input Sampling Rate (fs) | Gain = 1 to 128 | fCLKIN / 64 | MHz | |||
| Integral Nonlinearity (INL) | -0.0015 | 0.0015 | % FSR | |||
| Common-Mode Rejection Ratio (CMR) at 50Hz | CMR | Gain = 1 | 105 | dB | ||
| Power-Supply Rejection Ratio (PSRR) | PSRR | VDD = 2.7V to 3.6V | dB |
Key Features
- 16-bit resolution with no missing codes
- Internal oscillator (1MHz or 2.4576MHz)
- On-chip input buffer and programmable gain amplifier (PGA)
- SPI-/QSPI-/MICROWIRE®-compatible serial interface
- Excellent DC accuracy and low noise
- High common-mode rejection ratio (CMR) and power-supply rejection ratio (PSRR)
- Available in 16-pin PDIP, SO, and TSSOP packages
Applications
- Industrial Instruments
- Weigh Scales
- Strain-Gauge Measurements
- Loop-Powered Systems
- Flow and Gas Meters
- Medical Instrumentation
- Pressure Transducers
- Thermocouple Measurements
- RTD Measurements
Q & A
- What is the resolution of the MAX1415EUE+T ADC?
The MAX1415EUE+T has a 16-bit resolution with no missing codes.
- What types of packages are available for the MAX1415EUE+T?
The device is available in 16-pin PDIP, SO, and TSSOP packages.
- What is the operating supply voltage range for the MAX1415EUE+T?
The operating supply voltage range is from 2.7V to 3.6V.
- What is the common-mode rejection ratio (CMR) at 50Hz for the MAX1415EUE+T?
The CMR at 50Hz is 105 dB for a gain of 1.
- Does the MAX1415EUE+T have an internal oscillator?
Yes, it has an internal oscillator that can operate at 1MHz or 2.4576MHz.
- What types of serial interfaces are supported by the MAX1415EUE+T?
The device supports SPI-, QSPI-, and MICROWIRE®-compatible serial interfaces.
- What is the input sampling rate for the MAX1415EUE+T?
The input sampling rate is fCLKIN / 64 MHz.
- What are some typical applications of the MAX1415EUE+T?
Typical applications include industrial instruments, weigh scales, strain-gauge measurements, loop-powered systems, and medical instrumentation.
- What is the integral nonlinearity (INL) of the MAX1415EUE+T?
The INL is ±0.0015% FSR.
- Does the MAX1415EUE+T have on-chip input buffering and PGA?
Yes, it includes an on-chip input buffer and a programmable gain amplifier (PGA).
