Overview
The LTC2335-16, produced by Analog Devices Inc., is a 16-bit, low noise, 8-channel multiplexed successive approximation register (SAR) analog-to-digital converter (ADC). This device is characterized by its differential inputs with a wide common mode range, allowing it to directly digitize a variety of signals. It operates from a 5V low voltage supply and can be configured to accept different input voltage ranges on a conversion-by-conversion basis, including ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V. The ADC features an internal 2.048V reference and a 2× buffer, which simplifies its operation and enhances its signal-to-noise ratio (SNR).
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 16 |
| Sampling Rate | 1 Msps |
| Number of Channels | 8 |
| Input Type | Differential |
| Input Voltage Range | ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V |
| Supply Voltage | 5V (low voltage supply) |
| Package | 48-Lead LQFP (7mm x 7mm) |
| Integral Nonlinearity (INL) | ±1 LSB |
| Signal-to-Noise Ratio (SNR) | 94.4 dB |
| Common Mode Rejection Ratio (CMRR) | 118 dB |
| Serial Interface | SPI CMOS (1.8V to 5V), LVDS |
Key Features
- Flexible SoftSpan™ interface allowing conversion-by-conversion control of the input voltage span on a per-channel basis.
- Internal 2.048V reference and 2× buffer for simplified operation and enhanced SNR.
- Wide input common mode range and high CMRR, enabling direct digitization of various signals.
- No missing codes at 16 bits and low noise operation.
- Pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- Ability to cycle through a sequence of channels and ranges without user intervention.
Applications
The LTC2335-16 is ideal for high voltage applications requiring wide dynamic range. It is suitable for various industrial, medical, and automotive applications where precise and flexible analog-to-digital conversion is necessary. The device's ability to handle a wide range of input signals and its high accuracy make it a versatile choice for complex signal processing tasks.
Q & A
- What is the resolution of the LTC2335-16 ADC?
The LTC2335-16 is a 16-bit ADC.
- How many channels does the LTC2335-16 support?
The LTC2335-16 supports 8 channels.
- What is the sampling rate of the LTC2335-16?
The sampling rate is 1 Msps (1 million samples per second).
- What are the input voltage ranges supported by the LTC2335-16?
The ADC can be configured to accept ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V signals on any channel.
- What type of serial interfaces does the LTC2335-16 support?
The device supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- What is the package type of the LTC2335-16?
The package is a 48-Lead LQFP (7mm x 7mm).
- What is the integral nonlinearity (INL) of the LTC2335-16?
The INL is ±1 LSB.
- What is the signal-to-noise ratio (SNR) of the LTC2335-16?
The SNR is 94.4 dB.
- What is the common mode rejection ratio (CMRR) of the LTC2335-16?
The CMRR is 118 dB.
- Can the LTC2335-16 cycle through a sequence of channels and ranges automatically?
