Overview
The LTC2143IUP-14 is a 14-bit, 80Msps low power dual analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for digitizing high frequency, wide dynamic range signals, making it ideal for demanding communications applications. It features two-channel simultaneous sampling, which ensures accurate and synchronized data acquisition. The ADC boasts high AC performance with a signal-to-noise ratio (SNR) of 73.1dB and a spurious free dynamic range (SFDR) of 90dB. Additionally, it has ultralow jitter of 0.08ps RMS, allowing for excellent noise performance even when undersampling IF frequencies.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14 | Bits |
| Sampling Rate | 80 | Msps |
| Signal-to-Noise Ratio (SNR) | 73.1 | dB |
| Spurious Free Dynamic Range (SFDR) | 90 | dB |
| Jitter | 0.08 | ps RMS |
| Analog Supply Voltage | 1.7 to 1.9 | V |
| Output Supply Voltage | 1.1 to 1.9 | V |
| Analog Supply Current | 62.8 to 116 | mA |
| Digital Supply Current | 5.4 to 8.5 | mA |
| Power Dissipation | 113 to 189 | mW |
| Input Range | 1V to 2V P-P | |
| Full Power Bandwidth S/H | 750 | MHz |
| Package Type | 64-Pin QFN (9mm x 9mm x 0.75mm) |
Key Features
- Two-channel simultaneous sampling ADC
- Low power consumption: 113mW to 189mW total, 57mW to 95mW per channel
- Single 1.8V supply voltage
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1V P-P to 2V P-P
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Support for differential or single-ended inputs with various signal types (sine wave, PECL, LVDS, TTL, CMOS)
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 LTC2143IUP-14 ADC?
The LTC2143IUP-14 has a resolution of 14 bits.
- What is the sampling rate of the LTC2143IUP-14?
The sampling rate is 80 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2143IUP-14?
The SNR is 73.1 dB.
- What types of output modes are supported by the LTC2143IUP-14?
The ADC supports full rate CMOS, double data rate CMOS, and double data rate LVDS outputs.
- What is the power consumption of the LTC2143IUP-14?
The total power consumption ranges from 113mW to 189mW, with per channel consumption ranging from 57mW to 95mW.
- What input ranges are supported by the LTC2143IUP-14?
The input ranges are selectable from 1V P-P to 2V P-P.
- Does the LTC2143IUP-14 support differential or single-ended inputs?
Yes, it supports both differential and single-ended inputs with various signal types such as sine wave, PECL, LVDS, TTL, and CMOS.
- What is the package type of the LTC2143IUP-14?
The package type is a 64-Pin QFN (9mm x 9mm x 0.75mm).
- Does the LTC2143IUP-14 have power management features?
Yes, it includes shutdown and nap modes for power management.
- How is the LTC2143IUP-14 configured?
It can be configured via a serial SPI port.
