LTC1657L

The LTC^®1657L is a complete single supply, rail-to-rail voltage output, 16-bit digital-to-analog converter (DAC) in a 28-pin SSOP or PDIP package. It includes a rail-to-rail output buffer amplifier, an internal 1.25V reference and a double buffered parallel digital interface.

The LTC1657L operates from a 2.7V to 5.5V supply. It has a separate reference input pin 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 LTC1657L is similar to Linear Technology Corporation’s LTC1450 12-bit V_OUT DAC family allowing an easy upgrade path. It is the only buffered 16-bit parallel DAC in a 28-lead SSOP package and includes an onboard reference for stand alone performance.

·Instrumentation
·Industrial Process Control
·Automatic Test Equipment
·Communication Test Equipment

V_CC to GND .............................................. – 0.5V to 7.5V
TTL Input Voltage,
REFHI, REFLO, X1/X2 ............................... – 0.5V to 7.5V
V_OUT, REFOUT ............................ – 0.5V to (V_CC+ 0.5V)
Operating Temperature Range
LTC1657LC ............................................... 0°C to 70°C
LTC1657LI............................................ –40°C to 85°C
Maximum Junction Temperature .......................... 125°C
Storage Temperature Range ............ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C

·16-Bit Monotonic Over Temperature
·3V Single Supply Operation
·Deglitched Rail-to-Rail Voltage Output: 8nV· s
·I_CC: 650μA Typ
·Maximum DNL Error: ±1LSB
·Settling Time: 20μs to ±1LSB
·Internal or External Reference
·Internal Power-On Reset to 0V
·Asynchronous CLR Pin
·Output Buffer Configurable for Gain of 1 or 2
·Parallel 16-Bit or 2-Byte Double Buffered Interface
·Narrow 28-Lead SSOP Package
·5V Version Available (LTC1657)

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Description

Application

Specifications

Features

Pinout

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