Overview
The LTC2297CUP#TRPBF, produced by Analog Devices Inc., is a dual 14-bit analog-to-digital converter (ADC) designed for high-performance applications requiring the digitization of high-frequency, wide dynamic range signals. This component is part of the LTC2298/LTC2297/LTC2296 family, which offers various sample rates to suit different application needs. The LTC2297 specifically operates at a sample rate of 40 Msps, making it suitable for demanding imaging and communications applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14 bits (no missing codes) |
| Sample Rate | 40 Msps |
| Supply Voltage | Single 3V (2.7V to 3.4V) |
| Power Consumption | 235 mW |
| Signal-to-Noise Ratio (SNR) | 74.3 dB |
| Spurious Free Dynamic Range (SFDR) | 90 dB |
| Channel Isolation at 100 MHz | 110 dB |
| Integral Linearity Error | ±1.2 LSB |
| Differential Linearity Error | ±0.5 LSB |
| Full Power Bandwidth S/H | 575 MHz |
| Package | 64-Lead QFN (9mm x 9mm x 0.75mm) |
Key Features
- Integrated Dual 14-Bit ADCs
- Sample Rate: 40 Msps
- Single 3V Supply (2.7V to 3.4V)
- Low Power: 235 mW
- 74.3 dB SNR and 90 dB SFDR for signals at the Nyquist frequency
- Multiplexed or Separate Data Bus
- Flexible Input: 1 V P-P to 2 V P-P Range
- 575 MHz Full Power Bandwidth S/H
- Clock Duty Cycle Stabilizer
- Shutdown and Nap Modes
- Pin Compatible Family with other LTC22xx models
Applications
The LTC2297 is ideal for demanding imaging and communications applications. Its high AC performance, including 74.3 dB SNR and 90 dB SFDR, makes it suitable for digitizing high-frequency signals. Typical applications include:
- Imaging Systems
- Communications Systems
- High-Speed Data Acquisition
- Radar and Surveillance Systems
Q & A
- What is the sample rate of the LTC2297?
The LTC2297 operates at a sample rate of 40 Msps. - What is the resolution of the LTC2297?
The LTC2297 has a resolution of 14 bits with no missing codes. - What is the power consumption of the LTC2297?
The power consumption of the LTC2297 is 235 mW. - What is the signal-to-noise ratio (SNR) of the LTC2297?
The SNR of the LTC2297 is 74.3 dB. - What is the spurious free dynamic range (SFDR) of the LTC2297?
The SFDR of the LTC2297 is 90 dB. - What is the channel isolation at 100 MHz for the LTC2297?
The channel isolation at 100 MHz is 110 dB. - Does the LTC2297 support multiplexed or separate data buses?
Yes, the LTC2297 supports both multiplexed and separate data buses. - What is the full power bandwidth of the sample and hold (S/H) for the LTC2297?
The full power bandwidth of the S/H is 575 MHz. - Does the LTC2297 have shutdown and nap modes?
Yes, the LTC2297 includes shutdown and nap modes for power management. - What package type is the LTC2297 available in?
The LTC2297 is available in a 64-Lead QFN package (9mm x 9mm x 0.75mm).
