Overview
The LTC2297IUP from Analog Devices Inc. is a high-performance, dual 14-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This converter is part of the LTC2298/LTC2297/LTC2296 family and is optimized for low power consumption and high accuracy. It is particularly suited for demanding applications in imaging and communications due to its excellent AC performance, including a signal-to-noise ratio (SNR) of 74.3dB and a spurious-free dynamic range (SFDR) of 90dB for signals at the Nyquist frequency.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 | Bits |
| Sample Rate | 65Msps / 40Msps / 25Msps | samples per second |
| Supply Voltage | 2.7V to 3.4V | Volt |
| Power Consumption | 400mW / 235mW / 150mW | mWatt |
| SNR | 74.3dB | dB |
| SFDR | 90dB | dB |
| Channel Isolation at 100MHz | 110dB | dB |
| Integral Nonlinearity (INL) | ±1.2LSB | LSB |
| Differential Nonlinearity (DNL) | ±0.5LSB | LSB |
| Package/Case | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) | |
| Input Type | Differential/Single-Ended | |
| Architecture | Pipeline |
Key Features
- Integrated Dual 14-Bit ADCs
- Sample Rate: 65Msps/40Msps/25Msps
- Single 3V Supply (2.7V to 3.4V)
- Low Power: 400mW/235mW/150mW
- 74.3dB SNR and 90dB SFDR for signals at the Nyquist frequency
- 110dB Channel Isolation at 100MHz
- Multiplexed or Separate Data Bus
- Flexible Input: 1V P-P to 2V P-P Range
- 575MHz Full Power Bandwidth Sample-and-Hold
- Clock Duty Cycle Stabilizer
- Shutdown and Nap Modes
- Pin Compatible Family
Applications
- Automotive Systems
- Smart Grid Solutions
- Environmental Monitoring
- Imaging and Communications Applications
Q & A
- What is the resolution of the LTC2297IUP ADC?
The LTC2297IUP has a resolution of 14 bits.
- What are the available sample rates for the LTC2297IUP?
The sample rates available are 65Msps, 40Msps, and 25Msps.
- What is the power consumption of the LTC2297IUP?
The power consumption is 400mW, 235mW, or 150mW depending on the sample rate.
- What is the signal-to-noise ratio (SNR) of the LTC2297IUP?
The SNR is 74.3dB for signals at the Nyquist frequency.
- What is the spurious-free dynamic range (SFDR) of the LTC2297IUP?
The SFDR is 90dB for signals at the Nyquist frequency.
- What is the channel isolation at 100MHz for the LTC2297IUP?
The channel isolation at 100MHz is 110dB.
- What package type is the LTC2297IUP available in?
The LTC2297IUP is available in a 64-Lead QFN package (9mm x 9mm x 0.75mm w/ EP).
- Does the LTC2297IUP support differential and single-ended inputs?
- What are the shutdown modes available for the LTC2297IUP?
The LTC2297IUP has shutdown and nap modes available.
- Is there a clock duty cycle stabilizer in the LTC2297IUP?
