Overview
The LTC2142IUP-12 is a high-performance, 12-bit, dual-channel 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 applications in communications, medical imaging, and multi-channel data acquisition. The ADC features simultaneous sampling of both channels, ensuring accurate and synchronized data capture.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of A/D Converters | 2 | |
| Resolution | 12-bit | |
| Sampling Rate | 65 MS/s | |
| Input Type | Differential/Single-Ended | |
| Architecture | Pipelined | |
| Analog Supply Voltage | 1.7 V to 1.9 V | V |
| Digital Supply Voltage | 1.1 V to 1.9 V | V |
| Analog Supply Current | 51.3 mA (typ) | mA |
| Digital Supply Current | 2.4 mA (typ) at OVDD = 1.2V | mA |
| Power Dissipation | 96.9 mW (typ) | mW |
| Signal-to-Noise Ratio (SNR) | 70.8 dB | dB |
| Spurious Free Dynamic Range (SFDR) | 89 dB | dB |
| Full Power Bandwidth | 750 MHz | MHz |
| Package | 64-Pin QFN (9mm x 9mm) Exposed Pad | |
| RoHS Status | Lead free / RoHS Compliant |
Key Features
- Simultaneous sampling of two channels, ensuring synchronized data capture.
- CMOS, double data rate CMOS, or double data rate LVDS digital outputs to reduce digital noise.
- Selectable input ranges: 1Vpp to 2Vpp.
- Optional clock duty cycle stabilizer for high performance across various clock duty cycles.
- Optional data output randomizer.
- Shutdown and nap modes for power management.
- Serial SPI port for configuration.
- Ultralow jitter of 0.08psRMS, allowing for undersampling of IF frequencies with excellent noise performance.
Applications
- Communications: Cellular base stations, software-defined radios.
- Portable medical imaging.
- Multi-channel data acquisition.
- Nondestructive testing.
- Other high-frequency, wide dynamic range signal processing applications.
Q & A
- What is the resolution and sampling rate of the LTC2142IUP-12?
The LTC2142IUP-12 has a 12-bit resolution and a sampling rate of up to 65 MS/s.
- What types of digital outputs does the LTC2142IUP-12 support?
The LTC2142IUP-12 supports CMOS, double data rate CMOS, and double data rate LVDS digital outputs.
- What is the power consumption of the LTC2142IUP-12?
The typical power dissipation is 96.9 mW, with an analog supply current of 51.3 mA and a digital supply current of 2.4 mA at OVDD = 1.2V.
- What are the key applications of the LTC2142IUP-12?
The LTC2142IUP-12 is used in communications, portable medical imaging, multi-channel data acquisition, and nondestructive testing.
- What is the package type and size of the LTC2142IUP-12?
The LTC2142IUP-12 comes in a 64-Pin QFN (9mm x 9mm) Exposed Pad package.
- Is the LTC2142IUP-12 RoHS compliant?
- What is the signal-to-noise ratio (SNR) and spurious free dynamic range (SFDR) of the LTC2142IUP-12?
The SNR is 70.8 dB, and the SFDR is 89 dB.
- Does the LTC2142IUP-12 support simultaneous sampling?
- What are the optional features of the LTC2142IUP-12?
The LTC2142IUP-12 has optional features such as a clock duty cycle stabilizer, data output randomizer, and shutdown and nap modes.
- How does the LTC2142IUP-12 manage power consumption?
The LTC2142IUP-12 has shutdown and nap modes to manage power consumption effectively.
