Features and Benefits
- 2-Channel Simultaneous Sampling ADC
- Serial LVDS Outputs: 1, 2 or 4 Bits per Channel
- 84.1dB SNR (46μVRMS Input Referred Noise)
- 99dB SFDR
- Low Power: 185mW Total
- 92mW per Channel
- Single 1.8V Supply
- Selectable Input Ranges: 1VP-P to 2.1VP-P
- 200MHz Full-Power Bandwidth S/H
- Shutdown and Nap Modes
- Serial SPI Port for Conﬁguration
- Pin Compatible With LTC2190: 16-Bit, 25Msps, 104mW
- 52-Lead (7mm × 8mm) QFN Package
The LTC2271 is a 2-channel, simultaneous sampling 16-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 84.1dB SNR and 99dB spurious free dynamic range (SFDR).
DC specs include ±1LSB INL (typ), ±0.2LSB DNL (typ) and no missing codes over temperature. The transition noise is 1.44LSBRMS.
To minimize the number of data lines the digital outputs are serial LVDS. Each channel outputs one bit, two bits or four bits at a time. The LVDS drivers have optional internal termination and adjustable output levels to ensure clean signal integrity.
The ENC+ and ENC– inputs may be driven differentially or single ended with a sine wave, PECL, LVDS, TTL or CMOS inputs. An internal clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
- Low Power Instrumentation
- Software-Deﬁned Radios
- Portable Medical Imaging
- Multi-Channel Data Acquisition
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.