Overview
The LTC2255CUH#TRPBF is a 14-bit, 125Msps low power analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding applications in imaging and communications. The ADC operates on a single 3V supply and features a separate output supply that allows the outputs to drive 0.5V to 3.3V logic. It is packaged in a 32-lead QFN (5mm x 5mm x 0.75mm) package, which is lead-free and available in tape and reel format.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution (No Missing Codes) | 14 | 14 | 14 | Bits | |
| Integral Linearity Error | Differential Analog Input | -5 | ±1 | 5 | LSB |
| Differential Linearity Error | Differential Analog Input | -1 | ±0.5 | 1 | LSB |
| Offset Error | -12 | ±2 | 12 | mV | |
| Gain Error | External Reference | -2.5 | ±0.5 | 2.5 | %FS |
| Offset Drift | ±10 | ±10 | µV/°C | ||
| Full-Scale Drift | Internal Reference | ±30 | ppm/°C | ||
| Full-Scale Drift | External Reference | ±5 | ppm/°C | ||
| Transition Noise | SENSE = 1V | 1.3 | LSBRMS | ||
| Signal-to-Noise Ratio (SNR) | 5MHz Input | 72.4 | 72.5 | dB | |
| Sampling Rate | 125 | Msps | |||
| Full Power Bandwidth | 640 | MHz |
Key Features
- 14-bit resolution with no missing codes over temperature
- 125Msps sampling rate
- Low power operation on a single 3V supply
- Separate output supply allowing outputs to drive 0.5V to 3.3V logic
- High AC performance: 72.3dB SNR and 85dB SFDR for signals at the Nyquist frequency
- Optional clock duty cycle stabilizer for high performance at full speed
- Shutdown and nap modes for power management
- 32-lead QFN package (5mm x 5mm x 0.75mm)
Applications
- Wireless and Wired Broadband Communication
- Imaging Systems
- Ultrasound
- Spectral Analysis
- Portable Instrumentation
Q & A
- What is the resolution of the LTC2255CUH#TRPBF?
The LTC2255CUH#TRPBF has a 14-bit resolution with no missing codes over temperature. - What is the sampling rate of the LTC2255CUH#TRPBF?
The sampling rate is 125Msps. - What is the power supply requirement for the LTC2255CUH#TRPBF?
The device operates on a single 3V supply. - What is the full power bandwidth of the sample-and-hold amplifier?
The full power bandwidth of the sample-and-hold amplifier is 640MHz. - Does the LTC2255CUH#TRPBF have any power-saving modes?
Yes, it features shutdown and nap modes for power management. - What are the typical applications of the LTC2255CUH#TRPBF?
Typical applications include wireless and wired broadband communication, imaging systems, ultrasound, spectral analysis, and portable instrumentation. - What is the package type and size of the LTC2255CUH#TRPBF?
The device is packaged in a 32-lead QFN package (5mm x 5mm x 0.75mm). - Is the LTC2255CUH#TRPBF lead-free?
Yes, the LTC2255CUH#TRPBF is lead-free and available in tape and reel format. - What is the signal-to-noise ratio (SNR) of the LTC2255CUH#TRPBF for a 5MHz input?
The SNR is 72.4 to 72.5 dB for a 5MHz input. - Does the LTC2255CUH#TRPBF have an optional clock duty cycle stabilizer?
Yes, it has an optional clock duty cycle stabilizer for high performance at full speed.
