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, wide common mode range inputs and flexible high voltage supplies. It operates from a 5V low voltage supply and utilizes an internal reference and buffer, enabling it to accept a variety of input signal ranges on a conversion-by-conversion basis, including ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V. The LTC2335-16 is designed to simplify signal chain design with its wide input common mode range and high common mode rejection ratio (CMRR) of 118dB.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | - | - | 16 bits | - | - |
| Sampling Frequency | - | - | 1 Msps | - | - |
| Input Voltage Range | - | - | ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V | - | - |
| Integral Nonlinearity (INL) | - | - | ±1 LSB | - | - |
| Signal-to-Noise Ratio (SNR) | - | - | 94.4 dB | - | - |
| Common Mode Rejection Ratio (CMRR) | - | - | 118 dB | - | - |
| Supply Voltage | - | - | 5V | - | - |
| Serial Interface | - | - | SPI CMOS (1.8V to 5V), LVDS | - | - |
| Package | - | - | 48-Lead LQFP (7mm x 7mm) | - | - |
Key Features
- Differential, wide common mode range inputs with 118dB CMRR.
- Flexible input voltage ranges: ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V on a conversion-by-conversion basis.
- Low noise, 16-bit resolution with ±1 LSB INL and no missing codes.
- High signal-to-noise ratio (SNR) of 94.4 dB.
- Pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- Internal 2.048V reference and 2× buffer for simplified operation.
- Ability to cycle through a sequence of channels and ranges without user intervention.
Applications
The LTC2335-16 is ideal for various high voltage applications requiring wide dynamic range, such as:
- Industrial process control and monitoring.
- Automotive systems, including battery management and motor control.
- Medical devices, particularly those requiring high precision and wide input ranges.
- Aerospace and defense applications where robust and reliable data conversion is critical.
- Test and measurement equipment where flexibility in input signal handling is essential.
Q & A
- What is the resolution of the LTC2335-16 ADC?
The LTC2335-16 has a 16-bit resolution.
- What are the input voltage ranges supported by the LTC2335-16?
The LTC2335-16 supports input voltage ranges of ±10.24V, 0V to 10.24V, ±5.12V, and 0V to 5.12V.
- What is the maximum sampling frequency of the LTC2335-16?
The maximum sampling frequency is 1 Msps.
- What is the common mode rejection ratio (CMRR) of the LTC2335-16?
The CMRR is 118 dB.
- Does the LTC2335-16 support multiple serial interfaces?
Yes, it supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- What is the package type of the LTC2335-16?
The LTC2335-16 comes in a 48-Lead LQFP (7mm x 7mm) package.
- Can the LTC2335-16 be configured to cycle through different channels and ranges automatically?
Yes, it can be programmed to cycle through a sequence of channels and ranges without further user intervention.
- What is the signal-to-noise ratio (SNR) of the LTC2335-16?
The SNR is 94.4 dB.
- Does the LTC2335-16 have an internal reference and buffer?
Yes, it has an internal 2.048V reference and a 2× buffer.
- What are some typical applications of the LTC2335-16?
Typical applications include industrial process control, automotive systems, medical devices, aerospace and defense, and test and measurement equipment.
