Overview
The LTC2351HUH-14#PBF is a high-performance, 14-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2351-14 series and is distinguished by its ability to simultaneously sample six differential inputs. It operates at a sampling rate of 1.5 Msps and is designed for low power consumption, making it suitable for a variety of applications, including portable and battery-powered devices.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 1.5 Msps (250 ksps per channel) |
| Number of Channels | 6 differential inputs |
| Power Supply | Single 3V supply |
| Power Consumption | 5.5 mA (active), 12 µW (shutdown mode) |
| Common Mode Rejection | 83 dB |
| Input Range | 0V to 2.5V unipolar, ±1.25V bipolar (differential) |
| Package | 32-Lead QFN (5mm x 5mm x 0.75mm) |
Key Features
- Simultaneous sampling of six differential inputs on the rising edge of the CONV signal.
- Low power consumption with a sleep shutdown mode reducing power to 12 µW.
- High common mode rejection of 83 dB to eliminate ground loops and common mode noise.
- Flexible input range: 0V to 2.5V unipolar or ±1.25V bipolar, depending on the BIP pin state.
- Ability to convert fewer than six channels based on SEL2, SEL1, and SEL0 inputs.
- Serial interface compatible with standard serial interfaces, sending out six conversion results in 96 clocks.
Applications
The LTC2351HUH-14#PBF is suitable for a variety of applications where simultaneous sampling and low power consumption are critical. These include:
- Portable and battery-powered devices.
- Industrial measurement and control systems.
- Medical devices requiring high precision and low noise.
- Aerospace and defense applications where reliability and performance are paramount.
Q & A
- What is the resolution of the LTC2351HUH-14#PBF ADC?
The LTC2351HUH-14#PBF has a resolution of 14 bits. - What is the sampling rate of the LTC2351HUH-14#PBF?
The sampling rate is 1.5 Msps, with each channel sampled at 250 ksps. - How many differential inputs does the LTC2351HUH-14#PBF have?
The device has six differential inputs that are sampled simultaneously. - What is the power supply requirement for the LTC2351HUH-14#PBF?
The device operates from a single 3V supply. - What is the power consumption of the LTC2351HUH-14#PBF in active and shutdown modes?
In active mode, the device consumes 5.5 mA, and in shutdown mode, it reduces to 12 µW. - What is the common mode rejection ratio (CMRR) of the LTC2351HUH-14#PBF?
The CMRR is 83 dB. - What are the input range options for the LTC2351HUH-14#PBF?
The input range can be either 0V to 2.5V unipolar or ±1.25V bipolar, depending on the BIP pin state. - What package type is the LTC2351HUH-14#PBF available in?
The device is available in a 32-Lead QFN package (5mm x 5mm x 0.75mm). - Can the LTC2351HUH-14#PBF convert fewer than six channels?
Yes, the conversion sequence can be abbreviated to convert fewer than six channels based on the logic state of the SEL2, SEL1, and SEL0 inputs. - How does the serial interface of the LTC2351HUH-14#PBF work?
The serial interface sends out the six conversion results in 96 clocks, compatible with standard serial interfaces.
