Overview
The LTC2141CUP-14 from Analog Devices Inc. is a 2-channel simultaneous sampling 14-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This device is particularly suited for demanding communications applications, offering excellent AC performance with a signal-to-noise ratio (SNR) of 73.2dB and a spurious free dynamic range (SFDR) of 90dB. The ADC features ultralow jitter of 0.08ps RMS, enabling the undersampling of IF frequencies with superior noise performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 14 | |
| Number of Channels | 2 | |
| Sampling Rate | 40 MS/s | |
| Analog Supply Voltage | 1.7V to 1.9V | V |
| Digital Supply Voltage | 1.7V to 1.9V | V |
| Input Type | Differential/Single-Ended | |
| Input Range | 1V P-P to 2V P-P | |
| Full Power Bandwidth S/H | 750 MHz | |
| Integral Nonlinearity (INL) | ±1 LSB (typ) | |
| Differential Nonlinearity (DNL) | ±0.3 LSB (typ) | |
| Power Dissipation | 67 mW (total), 34 mW per channel | mW |
| Package | 64-Pin QFN (9mm x 9mm x 0.75mm w/ EP) | |
| Operating Temperature | 0°C to 70°C | °C |
Key Features
- Two-channel simultaneous sampling ADC
- 73.2dB SNR and 90dB SFDR
- Low power consumption: 67mW total, 34mW per channel
- Single 1.8V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1V P-P to 2V P-P
- 750MHz full power bandwidth S/H
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes
- Serial SPI port for configuration
- 64-Pin QFN package (9mm x 9mm x 0.75mm w/ EP)
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
Q & A
- What is the resolution of the LTC2141CUP-14 ADC?
The LTC2141CUP-14 has a resolution of 14 bits.
- What is the sampling rate of the LTC2141CUP-14?
The sampling rate is 40 MS/s.
- What are the input types supported by the LTC2141CUP-14?
The ADC supports differential and single-ended inputs.
- What is the full power bandwidth of the sample and hold (S/H) circuit?
The full power bandwidth of the S/H circuit is 750 MHz.
- What are the power consumption specifications of the LTC2141CUP-14?
The total power consumption is 67 mW, with 34 mW per channel.
- What are the operating temperature ranges for the LTC2141CUP-14?
The operating temperature range is from 0°C to 70°C.
- What types of output interfaces are available on the LTC2141CUP-14?
The ADC supports CMOS, DDR CMOS, and DDR LVDS output interfaces.
- Does the LTC2141CUP-14 have any power-saving modes?
- How is the LTC2141CUP-14 configured?
The ADC can be configured via a serial SPI port.
- What is the package type of the LTC2141CUP-14?
The package is a 64-Pin QFN (9mm x 9mm x 0.75mm w/ EP).
