LTC1668
PRODUCTION16-Bit, 50Msps DAC
- Part Models
- 4
- 1ku List Price
- Starting From $17.05
Part Details
- 50Msps Update Rate
- Pin Compatible 12-Bit, 14-Bit and 16-Bit Devices
- High Spectral Purity: 87dB SFDR at 1MHz fOUT
- 5pV-s Glitch Impulse
- Differential Current Outputs
- 20ns Settling Time
- Low Power: 180mW from ±5V Supplies
- TTL/CMOS (3.3V or 5V) Inputs
- Small Package: 28-Pin SSOP
The LTC1666/LTC1667/LTC1668 are 12-/14-/16-bit, 50Msps differential current output DACs implemented on a high performance BiCMOS process with laser trimmed, thin-film resistors. The combination of a novel current-steering architecture and a high performance process produces DACs with exceptional AC and DC performance. The LTC1668 is the first 16-bit DAC in the marketplace to exhibit an SFDR (spurious free dynamic range) of 87dB for an output signal frequency of 1MHz.
Operating from ±5V supplies, the LTC1666/LTC1667/LTC1668 can be configured to provide full-scale output currents up to 10mA. The differential current outputs of the DACs allow single-ended or true differential operation. The –1V to 1V output compliance of the LTC1666/LTC1667/LTC1668 allows the outputs to be connected directly to external resistors to produce a differential output voltage without degrading the converter’s linearity. Alternatively, the outputs can be connected to the summing junction of a high speed operational amplifier, or to a transformer.
The LTC1666/LTC1667/LTC1668 are pin compatible and are available in a 28-pin SSOP and are fully specified over the industrial temperature range.
Applications
- Cellular Base Stations
- Multicarrier Base Stations
- Wireless Communication
- Direct Digital Synthesis (DDS)
- xDSL Modems
- Arbitrary Waveform Generation
- Automated Test Equipment
- Instrumentation
Documentation
Data Sheet 1
Reliability Data 1
User Guide 2
Design Note 1
Technical Articles 4
Product Selector Card 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC1668CG#PBF | 28-Lead SSOP | ||
| LTC1668CG#TRPBF | 28-Lead SSOP | ||
| LTC1668IG#PBF | 28-Lead SSOP | ||
| LTC1668IG#TRPBF | 28-Lead SSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
|
Aug 6, 2022 - 22_0171 Laser Top Mark Conversion for SSOP Packages Assembled in PNG |
||
| LTC1668CG#PBF | PRODUCTION | |
| LTC1668CG#TRPBF | PRODUCTION | |
| LTC1668IG#PBF | PRODUCTION | |
| LTC1668IG#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
IBIS Model 1
Evaluation Kits
LTC1668 with LT6600 Demo Board | 16-Bit, 50Msps DAC, Differential ±0.25V outputs
Resources
Software
LTC1668 with LT1468 Demo Board | 16-Bit, 50Msps DAC, Single-Ended ±10V outputs
Resources
Software
LTC1668 with LT1812 Demo Board | 16-Bit, 50Msps DAC, Single-Ended ±1V outputs
Resources
Software
LTC1668CG | 16-Bit, High Speed Differential Current Output DAC
Resources
Reference Designs
