14-Bit, 80Msps Ultra-Low Power 1.8V ADCs
Features and Benefits
- Sample Rate: 80Msps
- 500MHz Full Power Bandwidth S/H
- Direct IF Sampling Up to 500MHz
- PGA Front End (2.25VP-P or 1.35VP-P Input Range)
- 75.5dB SNR and 90dB SFDR (PGA = 0)
- 73dB SNR and 90dB SFDR (PGA = 1)
- No Missing Codes
- Single 5V Supply
- Power Dissipation: 1.45W
- Two Pin Selectable Reference Values
- Two’s Complement or Offset Binary Outputs
- Out-of-Range Indicator
- Data Ready Output Clock
- Pin-for-Pin Family
- 48-Pin TSSOP Package
The LTC1750 is an 80Msps, 14-bit A/D converter designed for digitizing wide dynamic range signals up to frequencies of 500MHz. The input range of the ADC can be optimized with the on-chip PGA sample-and-hold circuit and flexible reference circuitry.
The LTC1750 has a highly linear sample-and-hold circuit with a bandwidth of 500MHz. The SFDR is 82dB with an input frequency of 250MHz. Ultralow jitter of 0.12psRMS allows undersampling of IF frequencies with minimal degradation in SNR. DC specs include ±3LSB INL and no missing codes.
The digital interface is compatible with 5V, 3V, 2V and LVDS logic systems. The ENC and ENC inputs may be driven differentially from PECL, GTL and other low swing logic families or from single-ended TTL or CMOS. The low noise, high gain ENC and ENC inputs may also be driven by a sinusoidal signal without degrading performance. A separate output power supply can be operated from 0.5V to 5V, making it easy to connect directly to any low voltage DSPs or FIFOs.
The 48-pin TSSOP package with a flow-through pinout simplifies the board layout.
- Cellular Base Stations
- Spectrum Analysis
- Imaging Systems
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.
Software & Systems Requirements
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.