Overview
The LTC2291CUP, produced by Analog Devices Inc., is a dual 12-bit analog-to-digital converter (ADC) designed for high-frequency, wide dynamic range signal digitization. This component is part of the LTC2293/LTC2292/LTC2291 family, each differing in their sample rates. The LTC2291 specifically operates at a sample rate of 25Msps. It is optimized for low power consumption and high performance, making it suitable for demanding applications in imaging and communications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 | Bits (No Missing Codes) |
| Sample Rate | 25 | Msps |
| Supply Voltage | 2.7V to 3.4V | V |
| Power Consumption | 150mW | mW |
| Signal-to-Noise Ratio (SNR) | 71.3dB | dB |
| Spurious Free Dynamic Range (SFDR) | 90dB | dB |
| Channel Isolation at 100MHz | 110dB | dB |
| Analog Input Range | ±0.5V to ±1V | V |
| Full Power Bandwidth S/H | 575MHz | MHz |
| Package Type | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) |
Key Features
- Integrated Dual 12-Bit ADCs
- Single 3V Supply (2.7V to 3.4V)
- Low Power: 150mW
- 71.3dB SNR and 90dB SFDR for signals at the Nyquist frequency
- Multiplexed or Separate Data Bus
- Flexible Input: 1V P-P to 2V P-P Range
- 575MHz Full Power Bandwidth S/H
- Clock Duty Cycle Stabilizer
- Shutdown and Nap Modes
- Pin Compatible Family
Applications
The LTC2291CUP is ideal for demanding imaging and communications applications. Its high AC performance, including 71.3dB SNR and 90dB SFDR, makes it suitable for digitizing high-frequency, wide dynamic range signals. It is particularly useful in applications requiring low power consumption and high data conversion rates.
Q & A
- What is the sample rate of the LTC2291CUP?
The LTC2291CUP operates at a sample rate of 25Msps.
- What is the power consumption of the LTC2291CUP?
The power consumption of the LTC2291CUP is 150mW.
- What is the signal-to-noise ratio (SNR) of the LTC2291CUP?
The SNR of the LTC2291CUP is 71.3dB.
- What is the spurious free dynamic range (SFDR) of the LTC2291CUP?
The SFDR of the LTC2291CUP is 90dB.
- What is the channel isolation at 100MHz for the LTC2291CUP?
The channel isolation at 100MHz is 110dB.
- What is the full power bandwidth of the sample-and-hold (S/H) circuit?
The full power bandwidth of the S/H circuit is 575MHz.
- Does the LTC2291CUP support multiplexed or separate data buses?
Yes, the LTC2291CUP supports both multiplexed and separate data buses.
- What are the shutdown and nap modes in the LTC2291CUP?
The LTC2291CUP features shutdown and nap modes to reduce power consumption when not in active use.
- What is the package type of the LTC2291CUP?
The LTC2291CUP is available in a 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) package.
- Is the LTC2291CUP pin compatible with other family members?
Yes, the LTC2291CUP is pin compatible with other members of the LTC2293/LTC2292/LTC2291 family.
