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Part Number: LTC1662
Description: The LTC(R) 1662 is an ultralow power, fully buffered voltage output, dual 10...
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LTC1662
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DataSheet
General Description
LTC1662 General Description
The LTC(R) 1662 is an ultralow power, fully buffered voltage output, dual 10-bit digital-to-analog converter (DAC). Each DAC draws just 1.7m A (typ) total supply-plus-reference operating current, yet is capable of supplying DC output currents in excess of 1mA and reliably driving capacitive loads of up to 1000pF. A programmable Sleep mode further reduces total operating current to a negli- gible 0.05m A.
Linear Technology's proprietary, inherently monotonic voltage interpolation architecture provides excellent lin-earity while allowing for an exceptionally small external form factor. The double-buffered input logic provides simultaneous update capability and can be used to write to either DAC without interrupting Sleep mode.
With its ultralow operating current and exceptionally small size, the LTC1662 is ideal for use in battery- powered products.
The LTC1662 is pin- and software-compatible with the LTC1661 micropower dual 10-bit DAC. It is available in 8-pin MSOP and PDIP packages and is specified over the industrial temperature range.
LTC1662 Maximum Ratings
(Note 1)
VCC to GND............................................... 0.3V to 7.5V
Logic Inputs to GND................................... 0.3V to 7.5V
VOUTA , VOUT B , REF to GND............0.3V to (V + 0.3V)
Maximum Junction Temperature............................. 125 C
Storage Temperature Range................... 65 C to 150 C
Operating Temperature Range
LTC1662C ................................................... 0 C to 70 C
LTC1662I................................................. 40 C to 85 C
Lead Temperature (Soldering, 10 sec)................... 300 C
VCC to GND............................................... 0.3V to 7.5V
Logic Inputs to GND................................... 0.3V to 7.5V
VOUTA , VOUT B , REF to GND............0.3V to (V + 0.3V)
Maximum Junction Temperature............................. 125 C
Storage Temperature Range................... 65 C to 150 C
Operating Temperature Range
LTC1662C ................................................... 0 C to 70 C
LTC1662I................................................. 40 C to 85 C
Lead Temperature (Soldering, 10 sec)................... 300 C
LTC1662 Features
Ultralow Power: 1.5m A (Typ) ICC per DAC Plus 0.05m A Sleep Mode for Extended Battery Life Tiny: Two 10-Bit DACs in an 8-Lead MSOPHalf the Size of an SO8
Wide 2.7V to 5.5V Supply Range Double Buffered for Simultaneous DAC Updates Rail-to-Rail Voltage Outputs Drive 1000pF Reference Range Includes Supply for Ratiometric 0V-to-VCC Output Reference Input Impedance Is Code-Independent (7.1MW Typ)-Eliminates External Buffers 3-Wire Serial Interface with
Schmitt Trigger Inputs Differential Nonlinearity: 0.75LSB Max
Wide 2.7V to 5.5V Supply Range Double Buffered for Simultaneous DAC Updates Rail-to-Rail Voltage Outputs Drive 1000pF Reference Range Includes Supply for Ratiometric 0V-to-VCC Output Reference Input Impedance Is Code-Independent (7.1MW Typ)-Eliminates External Buffers 3-Wire Serial Interface with
Schmitt Trigger Inputs Differential Nonlinearity: 0.75LSB Max
LTC1662 Typical Application
Mobile Communications Portable Battery-Powered Instruments Remote Industrial Devices Digitally Controlled Amplifiers and Attenuators Automatic Calibration for Manufacturing
LTC1662 Connection Diagram
LTC1662
PDF/DataSheet Download
- Datasheet: LTC1662
- File Size: 189761 KB
- Manufacturer: Linear
- Click here to Download
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LTC1662 Relative Products
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