LTC2642-12 - 12-Bit Vout DAC in 3mm x 3mm DFN

LTC2642-12 - 12-Bit Vout DAC in 3mm x 3mm DFN

Features

¡¤                     Click Here for Evaluation Kit

¡¤                     Tiny 3mm ¡Á 3mm 8-Pin DFN Package

¡¤                     Maximum 16-Bit INL Error: ¡À1LSB over Temperature

¡¤                     Low 120µA Supply Current

¡¤                     Guaranteed Monotonic over Temperature

¡¤                     Low 0.5nV•sec Glitch Impulse

¡¤                     2.7V to 5.5V Single Supply Operation

¡¤                     Fast 1µs Settling Time to 16 Bits

¡¤                     Unbuffered Voltage Output Directly Drives 60k Loads

¡¤                     50MHz SPI™/QSPI™/MICROWIRE™ Compatible Serial Interface

¡¤                     Power-On Reset Clears DAC Output to Zero Scale(LTC2641) or Midscale (LTC2642)

¡¤                     Schmitt-Trigger Inputs for Direct Optocoupler Interface

¡¤                     Asynchronous CLR Pin

¡¤                     8-Lead MSOP, 3mm ¡Á 3mm DFN, and 8-Lead SO
Packages (LTC2641)

¡¤                     10-Lead MSOP and 3mm ¡Á 3mm DFN Packages(LTC2642)

Typical Application

Description

The LTC2641/LTC2642 are families of 16-, 14- and 12-bit unbuffered voltage output DACs. These DACs operate from a single 2.7V to 5.5V supply and are guaranteed monotonic over temperature. The LTC2641A-16/LTC2642A-16 provide 16-bit performance (¡À1LSB INL and ¡À1LSB DNL) over temperature. Unbuffered DAC outputs result in low supply current of 120µA and a low offset error of ¡À1LSB.

Both the LTC2641 and LTC2642 feature a reference input range of 2V to V_DD. V_OUT swings from 0V to V_REF. For bipolar operation, the LTC2642 includes matched scaling resistors for use with an external precision op amp (such as the LT1678), generating a ¡ÀV_REF output swing at R_FB.

The LTC2641/LTC2642 use a simple SPI/MICROWIRE compatible 3-wire serial interface which can be operated at clock rates up to 50MHz and can interface directly with optocouplers for applications requiring isolation. A power-on reset circuit clears the LTC2641¡¯s DAC output to zero scale and the LTC2642¡¯s DAC output to midscale when power is initially applied. A logic low on the CLR pin asynchronously clears the DAC to zero scale (LTC2641) or midscale (LTC2642). These DACs are all specified over the commercial and industrial ranges

Packaging

MS-10, DFN-10

FROM: Company Name: Aunytor Electronic (HK) Co.,Ltd
            Contact Person: Charlotte
            Skype: Aunytor
            whatsapp£º+86 13537622113
            Email: carrot@aunytorchips.com