Overview
The LTC2351IUH-14#PBF, produced by Analog Devices Inc., is a 14-bit, 6-channel simultaneous sampling Analog-to-Digital Converter (ADC). This device is part of the LTC2351-14 series and is known for its high precision and low power consumption. It features six differential inputs that are sampled simultaneously, making it suitable for applications requiring multiple channel conversions. The ADC operates from a single 3V supply, drawing only 5.5mA, and includes a sleep shutdown mode that reduces power consumption to 12µW. This makes it an ideal choice for portable and power-sensitive applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits |
| Number of Channels | 6 |
| Sampling Rate | 1.5 Msps (250 ksps per channel) |
| Input Type | Differential |
| Input Range | 0V to 2.5V (unipolar), ±1.25V (bipolar) |
| Supply Voltage | 3V |
| Power Consumption | 5.5mA (active), 12µW (shutdown) |
| Package | 32-Lead QFN (5mm x 5mm x 0.75mm) |
| Common Mode Rejection | 83dB |
Key Features
- Simultaneous sampling of six differential inputs on the rising edge of the CONV signal.
- Low power consumption: 5.5mA from a single 3V supply and 12µW in shutdown mode.
- High common mode rejection of 83dB 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.
- Abbreviated conversion sequence to convert fewer than six channels using SEL2, SEL1, and SEL0 inputs.
- Serial interface compatible with standard serial interfaces, sending out six conversion results in 96 clocks.
Applications
The LTC2351IUH-14#PBF is suitable for a variety of applications, including:
- Portable and battery-powered devices due to its low power consumption.
- Industrial automation and control systems requiring multiple channel conversions.
- Medical devices where high precision and low noise are critical.
- Aerospace and defense applications needing reliable and compact ADC solutions.
- Test and measurement equipment requiring simultaneous sampling of multiple channels.
Q & A
- What is the resolution of the LTC2351IUH-14#PBF ADC?
The LTC2351IUH-14#PBF has a resolution of 14 bits. - How many channels does the LTC2351IUH-14#PBF support?
The device supports six differential input channels. - What is the sampling rate of the LTC2351IUH-14#PBF?
The sampling rate is 1.5 Msps, with each channel sampled at 250 ksps. - What is the power consumption of the LTC2351IUH-14#PBF?
The device consumes 5.5mA in active mode and 12µW in shutdown mode. - What is the common mode rejection ratio of the LTC2351IUH-14#PBF?
The common mode rejection ratio is 83dB. - Can the input range of the LTC2351IUH-14#PBF be adjusted?
Yes, the input range can be set to either 0V to 2.5V unipolar or ±1.25V bipolar, depending on the state of the BIP pin. - What package type is the LTC2351IUH-14#PBF available in?
The device is available in a 32-Lead QFN package (5mm x 5mm x 0.75mm). - How does the LTC2351IUH-14#PBF handle simultaneous sampling?
The device samples all six differential inputs simultaneously on the rising edge of the CONV signal. - Can the conversion sequence be abbreviated to convert fewer channels?
Yes, the conversion sequence can be abbreviated using the SEL2, SEL1, and SEL0 inputs. - What is the serial interface compatibility of the LTC2351IUH-14#PBF?
The serial interface sends out the six conversion results in 96 clocks, compatible with standard serial interfaces.
