Model No: LTC2185CUP
Analog Devices Inc. LTC2185CUP
Manufacturer: Analog Devices Inc.
SEMICON NO.: LTC2185CUP
Package: 64-QFN
Stock: In stock
Description: IC Dual ADC 16bit 125MSPS 90 dB 550 MHz
SEMICON NO.: LTC2185CUP
Package: 64-QFN
Stock: In stock
Description: IC Dual ADC 16bit 125MSPS 90 dB 550 MHz
Quantity :
| Mfr | Analog Devices Inc. |
| Device Type | Dual-Channel, 16-bit, Simultaneous Sampling ADC |
| Architecture | Pipelined |
| Resolution (Bits) | 16-bit |
| Number of Channels | 2 |
| Sampling Rate (Max) | 125 MSPS |
| Signal-to-Noise Ratio (SNR) | 76.8 dBFS |
| Spurious Free Dynamic Range (SFDR) | 90 dB (typical) |
| Full-Power Bandwidth | 550 MHz |
| Total (Typical) | 370 mW |
| Supply Voltage | 1.7 V to 1.9 V |
| Output Supply Range (CMOS) | 1.2 V to 1.8 V |
| Data Interface | Parallel / Serial SPI |
| Operating Temperature | 0°C to +70°C |
| Package | 64-QFN |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
LTC2185CUP is an obsolete high‑performance dual‑channel simultaneous‑sampling 16‑bit pipelined analog‑to‑digital converter developed by Analog Devices, delivering a maximum sampling speed of 125 Msps under a single 1.8 V low‑voltage power supply. Packaged in a compact 64‑QFN housing and rated for 0 °C‑70 °C commercial temperature operation, this ADC achieves 76.8 dB SNR, 90 dB SFDR and ultra‑low 0.07 ps RMS aperture jitter, supporting undersampling for intermediate‑frequency signals, and provides flexible multi‑format digital outputs plus an SPI configuration port for high‑frequency wide‑dynamic‑range signal acquisition in communications, measurement and imaging hardwareAnalog Dev....
Applications
LTC2185CUP was widely deployed for wireless communication base station receivers, software‑defined radio platforms, high‑speed dual‑channel data acquisition boards, medical imaging equipment, radar intermediate‑frequency signal processing, industrial nondestructive testing instruments and broadband signal monitoring systems, where synchronized high‑resolution sampling of two high‑frequency analog signals is a core system requirement.
FAQ
Q: What is the advantage of simultaneous sampling?
A: Two analog inputs are sampled at exactly the same clock moment, eliminating phase time delay between dual‑channel signals.
Q: What PCB layout tips should be followed?
A: Separate analog and digital ground planes, provide sufficient decoupling capacitors near power pins, route differential clock traces with impedance matching, and fully solder the exposed thermal pad for heat dissipation.
Applications
LTC2185CUP was widely deployed for wireless communication base station receivers, software‑defined radio platforms, high‑speed dual‑channel data acquisition boards, medical imaging equipment, radar intermediate‑frequency signal processing, industrial nondestructive testing instruments and broadband signal monitoring systems, where synchronized high‑resolution sampling of two high‑frequency analog signals is a core system requirement.
FAQ
Q: What is the advantage of simultaneous sampling?
A: Two analog inputs are sampled at exactly the same clock moment, eliminating phase time delay between dual‑channel signals.
Q: What PCB layout tips should be followed?
A: Separate analog and digital ground planes, provide sufficient decoupling capacitors near power pins, route differential clock traces with impedance matching, and fully solder the exposed thermal pad for heat dissipation.
Alternative ADC Converter Models
● LTC2184CUP: Pin‑compatible dual‑channel 16‑bit ADC with reduced 105 Msps sampling speed, an economical substitute when lower conversion bandwidth satisfies project demands.
● AD9680: Modern dual‑channel 14‑bit high‑speed ADC with upgraded performance and long‑term production availability, recommended for new‑generation communications receiver hardware.
● LTC2183CUP: 80 Msps dual‑channel 16‑bit simultaneous‑sampling converter, ideal for low‑frequency wide‑dynamic‑range acquisition circuits with relaxed speed requirements.
● LTC2184CUP: Pin‑compatible dual‑channel 16‑bit ADC with reduced 105 Msps sampling speed, an economical substitute when lower conversion bandwidth satisfies project demands.
● AD9680: Modern dual‑channel 14‑bit high‑speed ADC with upgraded performance and long‑term production availability, recommended for new‑generation communications receiver hardware.
● LTC2183CUP: 80 Msps dual‑channel 16‑bit simultaneous‑sampling converter, ideal for low‑frequency wide‑dynamic‑range acquisition circuits with relaxed speed requirements.
