Overview
The LTC2158-14 is a dual 14-bit, 310 Msps analog-to-digital converter (ADC) designed by Analog Devices Inc. This device is optimized for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications applications. It features simultaneous sampling on two channels, a single 1.8V supply, and low power consumption of 724 mW. The ADC boasts a 1.25 GHz full power bandwidth and supports double data rate (DDR) LVDS outputs. Its high signal-to-noise ratio (SNR) of 68.8 dBFS and spurious free dynamic range (SFDR) of 88 dB ensure excellent AC performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 14 | - |
| Sampling Rate | 310 Msps | - |
| Number of A/D Converters | 2 | - |
| Input Type | Differential | - |
| Analog Supply Voltage | 1.74 - 1.9 | V |
| Digital Supply Voltage | 1.74 - 1.9 | V |
| Power Dissipation | 724 mW | mW |
| Input Bandwidth | 1.25 GHz | GHz |
| SNR | 68.8 dBFS | dBFS |
| SFDR | 88 dB | dB |
| Package Type | 64-QFN (9x9 mm) | - |
| Operating Temperature | 0°C - 70°C | °C |
Key Features
- Simultaneous sampling on two channels
- Single 1.8V supply voltage
- Low power consumption: 724 mW total
- DDR LVDS outputs
- Easy-to-drive 1.32V peak-to-peak input range
- 1.25 GHz full power bandwidth
- Optional clock duty cycle stabilizer
- Low power sleep and nap modes
- Serial SPI port for configuration
- Pin-compatible 12-bit version
Applications
- Communications
- Cellular Basestations
- Software Defined Radios
- Medical Imaging
- High Definition Video
- Testing and Measurement Instruments
Q & A
- What is the sampling rate of the LTC2158-14 ADC?
The sampling rate of the LTC2158-14 ADC is 310 Msps.
- How many bits does the LTC2158-14 ADC have?
The LTC2158-14 ADC is a 14-bit converter.
- What is the input bandwidth of the LTC2158-14?
The input bandwidth of the LTC2158-14 is 1.25 GHz.
- What is the power consumption of the LTC2158-14?
The total power consumption of the LTC2158-14 is 724 mW.
- What type of output does the LTC2158-14 use?
The LTC2158-14 uses DDR LVDS outputs.
- What are the typical applications of the LTC2158-14?
The LTC2158-14 is typically used in communications, cellular basestations, software defined radios, medical imaging, high definition video, and testing and measurement instruments.
- What is the operating temperature range of the LTC2158-14?
The operating temperature range of the LTC2158-14 is from 0°C to 70°C.
- Does the LTC2158-14 support low power modes?
Yes, the LTC2158-14 supports low power sleep and nap modes.
- What is the package type of the LTC2158-14?
The LTC2158-14 comes in a 64-QFN (9x9 mm) package.
- Is the LTC2158-14 RoHS compliant?
Yes, the LTC2158-14 is lead-free and RoHS compliant.
