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LTC2656IUFD-L12PBF Datasheet(PDF) 6 Page - Linear Technology |
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LTC2656IUFD-L12PBF Datasheet(HTML) 6 Page - Linear Technology |
6 / 26 page LTC2656 6 2656fa SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Reference Input Range External Reference Mode (Note 13) l 0.5 VCC/2 V Reference Input Current l 0.001 1 µA Reference Input Capacitance (Note 9) l 40 pF Power Supply VCC Positive Supply Voltage For Specified Performance l 2.7 5.5 V ICC Supply Current (Note 8) VCC = 5V, Internal Reference On VCC = 5V, Internal Reference Off VCC = 3V, Internal Reference On VCC = 3V, Internal Reference Off l l l l 3.1 2.7 3.0 2.6 4.25 3.7 3.8 3.2 mA mA mA mA ISHDN Supply Current in Shutdown Mode (Note 8) VCC = 5V l 3 µA Digital I/O VIH Digital Input High Voltage VCC = 3.6V to 5.5V VCC = 2.7V to 3.6V l l 2.4 2.0 V V VIL Digital Input Low Voltage VCC = 4.5V to 5.5V VCC = 2.7V to 4.5V l l 0.8 0.6 V V VOH Digital Output High Voltage Load Current = –100µA l VCC–0.4 V VOL Digital Output Low Voltage Load Current = 100µA l 0.4 V ILK Digital Input Leakage VIN = GND to VCC l ±1 µA CIN Digital Input Capacitance (Note 9) l 8 pF AC Performance tS Settling Time (Note 10) ±0.024% (±1LSB at 12 Bits) ±0.0015% (±1LSB at 16 Bits) 4.2 8.9 µs µs Settling Time for 1LSB Step ±0.024% (±1LSB at 12 Bits) ±0.0015% (±1LSB at 16 Bits) 2.2 4.9 µs µs Voltage Output Slew Rate 1.8 V/µs Capacitive Load Driving 1000 pF Glitch Impulse (Note 11) At Mid-Scale Transition, VCC = 3V 3 nV•s DAC-to-DAC Crosstalk (Note 12) Due to Full-Scale Output Change, CREFCOMP = CREFOUT = No Load 2 nV•s Multiplying Bandwidth 150 kHz en Output Voltage Noise Density At f = 1kHz At f = 10kHz 85 80 nV/√Hz nV/√Hz Output Voltage Noise 0.1Hz to 10Hz, Internal Reference 0.1Hz to 200kHz, Internal Reference 8 600 µVP-P µVP-P ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 2.7V to 5.5V, VOUT unloaded unless otherwise specified. LTC2656B-L16/LTC2656C-L16/LTC2656-L12 (internal reference = 1.25V) |
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