Overview
The LTC2273CUJ, produced by Analog Devices Inc., is a high-performance 16-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This ADC operates at a sampling rate of 80 Msps and features a high-speed serial interface compliant with the JEDEC JESD204 specification. It is particularly suited for demanding applications where isolating sensitive analog circuits from noisy digital logic is crucial. The device boasts an input bandwidth of 700 MHz and offers excellent AC performance, including a 77.7 dBFS noise floor and 100 dB spurious free dynamic range (SFDR).
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 16 | - |
| Sampling Rate | 80 Msps | - |
| Number of Inputs | 1 | - |
| Input Type | Differential | - |
| Data Interface | JESD204 | - |
| Configuration | S/H-ADC | - |
| Ratio - S/H:ADC | 1:1 | - |
| Architecture | Pipelined | - |
| Reference Type | External, Internal | - |
| Voltage - Supply, Analog | 3.135V ~ 3.465V | V |
| Voltage - Supply, Digital | 3.135V ~ 3.465V | V |
| Operating Temperature | 0°C ~ 70°C | °C |
| Package / Case | 40-WFQFN Exposed Pad | - |
| Noise Floor | 77.7 dBFS | dBFS |
| Spurious Free Dynamic Range (SFDR) | 100 dB | dB |
| Full Power Bandwidth S/H | 700 MHz | MHz |
| Power Dissipation | 1100 mW | mW |
Key Features
- High-speed serial interface compliant with JEDEC JESD204 specification
- Sample rate of 80 Msps
- 16-bit resolution
- PGA front end with 2.25V P-P or 1.5V P-P input range
- 700 MHz full power bandwidth sample-and-hold amplifier
- Optional internal dither
- Single 3.3V supply
- Low internal jitter of 80 fs RMS
- Clock duty cycle stabilizer
- Pin-compatible family with different sampling rates (LTC2274, LTC2273, LTC2272)
Applications
- Telecommunications
- Receivers
- Cellular Base Stations
- Spectrum Analysis
- Imaging Systems
- Automatic Test Equipment (ATE)
Q & A
- What is the sampling rate of the LTC2273CUJ?
The LTC2273CUJ has a sampling rate of 80 Msps.
- What type of serial interface does the LTC2273CUJ use?
The LTC2273CUJ uses a high-speed serial interface compliant with the JEDEC JESD204 specification.
- What is the resolution of the LTC2273CUJ?
The LTC2273CUJ has a 16-bit resolution.
- What is the input bandwidth of the LTC2273CUJ?
The input bandwidth of the LTC2273CUJ is 700 MHz.
- What are the power supply requirements for the LTC2273CUJ?
The LTC2273CUJ requires a single 3.3V supply, with the analog and digital supply voltages ranging from 3.135V to 3.465V.
- What is the noise floor of the LTC2273CUJ?
The noise floor of the LTC2273CUJ is 77.7 dBFS.[
- What is the spurious free dynamic range (SFDR) of the LTC2273CUJ?
The SFDR of the LTC2273CUJ is 100 dB.[
- Does the LTC2273CUJ have an internal dither option?
Yes, the LTC2273CUJ has an optional internal dither feature.[
- What is the package type of the LTC2273CUJ?
The LTC2273CUJ comes in a 40-lead QFN (6mm x 6mm) package with an exposed pad.
- What are some typical applications of the LTC2273CUJ?
The LTC2273CUJ is used in telecommunications, receivers, cellular base stations, spectrum analysis, imaging systems, and automatic test equipment (ATE).[
- How does the LTC2273CUJ handle clock duty cycle variations?
The LTC2273CUJ features a clock duty cycle stabilizer to ensure high performance across a wide range of clock duty cycles.[
