Overview
The LTC2185IUP, manufactured by Analog Devices Inc., is a high-performance, 16-bit, dual-channel analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This device is part of the LTC2185/LTC2184/LTC2183 family and is optimized for demanding applications such as communications, cellular base stations, software-defined radios, and medical imaging. The LTC2185IUP features simultaneous sampling capabilities, low power consumption, and excellent AC performance, making it a versatile choice for various high-speed data acquisition needs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16-bit | |
| Sampling Frequency | 125 Msps | |
| Signal-to-Noise Ratio (SNR) | 76.8 dB | |
| Spurious Free Dynamic Range (SFDR) | 90 dB | |
| Integral Non-Linearity (INL) | ±2 LSB (typ) | |
| Differential Non-Linearity (DNL) | ±0.5 LSB (typ) | |
| Power Consumption | 370 mW (total), 185 mW per channel | |
| Supply Voltage | 1.8 V | |
| Output Types | CMOS, DDR CMOS, DDR LVDS | |
| Input Ranges | 1 Vpp to 2 Vpp | |
| Full Power Bandwidth S/H | 550 MHz | |
| Package Type | 64-Pin QFN (9mm x 9mm x 0.75mm w/ EP) |
Key Features
- Two-channel simultaneous sampling ADC
- Low power consumption: 370 mW total, 185 mW per channel
- Single 1.8 V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1 Vpp to 2 Vpp
- 550 MHz full power bandwidth S/H
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- 64-Pin QFN package (9mm x 9mm x 0.75mm w/ EP)
Applications
- Communications
- Cellular Base Stations
- Software Defined Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
- Nondestructive Testing
Q & A
- What is the resolution of the LTC2185IUP ADC?
The LTC2185IUP has a resolution of 16 bits.
- What is the maximum sampling frequency of the LTC2185IUP?
The maximum sampling frequency is 125 Msps.
- What is the signal-to-noise ratio (SNR) of the LTC2185IUP?
The SNR is 76.8 dB.
- What types of output interfaces are available on the LTC2185IUP?
The device supports CMOS, DDR CMOS, and DDR LVDS outputs.
- What are the power consumption modes of the LTC2185IUP?
The device has total power consumption of 370 mW, with 185 mW per channel, and also features shutdown and nap modes for power management.
- What is the full power bandwidth of the sample-and-hold (S/H) circuit in the LTC2185IUP?
The full power bandwidth of the S/H circuit is 550 MHz.
- Can the input range of the LTC2185IUP be adjusted?
- Does the LTC2185IUP support any power-saving modes?
- How is the LTC2185IUP configured?
The device can be configured via a serial SPI port.
- What package type is the LTC2185IUP available in?
The device is available in a 64-Pin QFN package (9mm x 9mm x 0.75mm w/ EP).
