LTC1657L

LTC1657/LTC1657L Parallel 16-Bit Rail-to-Rail Micropower DAC FEATURES nn 16-Bit Monotonic Over Temperature nn Deglitched Rail-to-Rail Voltage Output: 8nVs nn ICC: 650µA Typ nn Maximum DNL Error: ±1LSB nn Settling Time: 20µs to ±1LSB nn Built-In Reference: 2.048V (LTC1657) 1.25V (LTC1657L) nn Internal Power-On Reset to Zero Volts nn Asynchronous CLR Pin nn Output Buffer Configurable for Gain of 1 or 2 nn Parallel 16-Bit or 2-Byte Double Buffered Interface nn Multiplying Capability nn Narrow 28-Lead SSOP Package APPLICATIONS nn Instrumentation nn Digital Calibration nn Industrial Process Control nn Automatic Test Equipment nn Communication Test Equipment DESCRIPTION The LTC®1657/LTC1657L are complete single supply, railto-rail voltage output, 16-bit digital-to-analog converters (DAC) in a 28-pin SSOP package. They include a rail-to-rail output buffer amplifier, an internal reference and a double buffered parallel digital interface. The LTC1657/LTC1657L have separate reference input pins that can be driven by an external reference. The full-scale output can be 1 or 2 times the reference voltage depending on how the X1/X2 pin is connected. The LTC1657 operates from a 4.5V to 5.5V supply and has an onboard 2.048V reference. The LTC1657L operates from a 2.7V to 5.5V supply and has an onboard 1.25V reference. The LTC1657/LTC1657L are similar to Linear Technology Corporation’s LTC1450/LTC1450L 12-bit VOUT DAC family, allowing an upgrade path. They are the only buffered 16-bit p...