Overview
The LTC2140CUP-12#PBF is a high-performance, low-power, 2-channel analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high-frequency, wide dynamic range signals, making it suitable for various demanding applications. It features a pipelined architecture, simultaneous sampling capability, and operates at a sampling rate of 25 MS/s. The ADC is powered by a single 1.8V supply and is packaged in a 64-pin QFN (9x9 mm) with an exposed pad, which enhances thermal performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 bits | |
| Number of Channels | 2 | |
| Sampling Rate | 25 MS/s | |
| Analog Supply Voltage | 1.7 V to 1.9 V | V |
| Digital Supply Voltage | 1.7 V to 1.9 V | V |
| Power Dissipation | 48 mW | mW |
| Input Type | Differential/Single-Ended | |
| Architecture | Pipelined | |
| Reference Type | Internal | |
| Package/Case | 64-QFN (9x9 mm) Exposed Pad | |
| Operating Temperature | 0°C to 70°C | °C |
| SNR (Signal to Noise Ratio) | 70.8 dB | dB |
| SFDR (Spurious Free Dynamic Range) | 89 dB | dB |
| DNL (Differential Nonlinearity) | ±0.1 LSB | LSB |
| INL (Integral Nonlinearity) | ±0.3 LSB | LSB |
Key Features
- Simultaneous sampling of two channels
- Low power consumption: 48 mW total, 24 mW per channel
- Single 1.8V supply voltage
- CMOS, DDR CMOS, or DDR LVDS output modes
- Selectable input ranges: 1V P-P to 2V P-P
- 750 MHz full power bandwidth sample-and-hold
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
Applications
- Communications systems
- Cellular base stations
- Software defined radios
- Portable medical imaging
- Multi-channel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2140CUP-12#PBF ADC?
The resolution of the LTC2140CUP-12#PBF is 12 bits.
- How many channels does the LTC2140CUP-12#PBF ADC have?
The LTC2140CUP-12#PBF has 2 channels.
- What is the sampling rate of the LTC2140CUP-12#PBF?
The sampling rate of the LTC2140CUP-12#PBF is 25 MS/s.
- What is the power supply voltage for the LTC2140CUP-12#PBF?
The LTC2140CUP-12#PBF operates on a single 1.8V supply voltage).
- What are the output modes available for the LTC2140CUP-12#PBF?
The output modes available are CMOS, DDR CMOS, and DDR LVDS).
- What is the operating temperature range of the LTC2140CUP-12#PBF?
The operating temperature range is from 0°C to 70°C).
- What is the SNR (Signal to Noise Ratio) of the LTC2140CUP-12#PBF?
The SNR of the LTC2140CUP-12#PBF is 70.8 dB).
- What is the SFDR (Spurious Free Dynamic Range) of the LTC2140CUP-12#PBF?
The SFDR of the LTC2140CUP-12#PBF is 89 dB).
- Does the LTC2140CUP-12#PBF support simultaneous sampling?
Yes, the LTC2140CUP-12#PBF supports simultaneous sampling of two channels).
- What are some typical applications of the LTC2140CUP-12#PBF?
Typical applications include communications systems, cellular base stations, software defined radios, portable medical imaging, multi-channel data acquisition, and nondestructive testing).
