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LT1460A-5 Datasheet(PDF) 1 Page - Linear Technology |
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LT1460A-5 Datasheet(HTML) 1 Page - Linear Technology |
1 / 24 page LTC2753 1 2753f TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION Dual Current Output 12-/14-/16-Bit SoftSpan DACs with Parallel I/O The LTC®2753 is a family of dual 12-, 14-, and 16-bit multiplying parallel-input, current-output DACs. These DACs operate from a single 2.7V to 5.5V supply and are all guaranteedmonotonicovertemperature.TheLTC2753A-16 provides 16-bit performance (±1LSB INL and DNL) over temperature without any adjustments. These SoftSpan™ DACs offer six output ranges—two unipolar and four bipolar—that can be programmed through the parallel interface, or pinstrapped for operation in a single range. The LTC2753 DACs use a bidirectional input/output parallel interface that allows readback of any on-chip register. A power-on reset circuit resets the DAC outputs to 0V when power is initially applied. A logic low on the CLR pin asyn- chronously clears the DACs to 0V in any output range. The parts are specified over commercial and industrial temperature ranges. Dual 16-Bit VOUT DAC with Software-Selectable Ranges ■ Six Programmable Output Ranges Unipolar: 0V to 5V, 0V to 10V Bipolar: ±5V, ±10V, ±2.5V, –2.5V to 7.5V ■ Maximum 16-Bit INL Error: ±1 LSB over Temperature ■ Low 1μA (Maximum) Supply Current ■ Guaranteed Monotonic over Temperature ■ Low Glitch Impulse 1nV•s ■ 2.7V to 5.5V Single Supply Operation ■ 2μs Settling Time to ±1 LSB ■ Parallel Interface with Readback of All Registers ■ Asynchronous CLR Pin Clears DAC Outputs to 0V in Any Output Range ■ Power-On Reset to 0V ■ 48-Pin 7mm × 7mm QFN Package ■ High Resolution Offset and Gain Adjustment ■ Process Control and Industrial Automation ■ Automatic Test Equipment ■ Data Acquisition Systems LTC2753-16 Integral Nonlinearity (INL) , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. CODE 0 –1.0 –0.8 –0.4 –0.2 0.0 1.0 0.4 16384 32768 –0.6 0.6 0.8 0.2 49152 65535 2753 TA01b 25°C 90°C –45°C VDD = 5V VREF = 5V ±10V RANGE – + SPAN I/O DATA I/O DAC A 46 47 R1 R2 2 1 48 39 40 LTC2753-16 RFBA IOUT1A VOUTA VOUTB IOUT2A RVOSA RVOSB IOUT2B IOUT1B RFBB 45 4 44 43 32 42 41 ROFSB REFB REFA 150pF 15pF 15pF 1/2 LT1469 1/2 LT1469 1/2 LT1469 RCOM RIN ROFSA VREF 5V DAC B 2753 TA01 16 3 I/O PORT I/O PORT |
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