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LTC2656BIUFD-L16PBF Datasheet(PDF) 7 Page - Linear Technology |
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LTC2656BIUFD-L16PBF Datasheet(HTML) 7 Page - Linear Technology |
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7 / 26 page  LTC2656 7 2656fa ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 4.5V to 5.5V, VOUT unloaded unless otherwise specified. LTC2656B-H16/LTC2656-H12 (internal reference = 2.048V) SYMBOL PARAMETER CONDITIONS LTC2656-H12 LTC2656B-H16 UNITS MIN TYP MAX MIN TYP MAX DC Performance Resolution l 12 16 Bits Monotonicity (Note 3) l 12 16 Bits DNL Differential Nonlinearity (Note 3) l ±0.1 ±0.5 ±0.3 ±1 LSB INL Integral Nonlinearity (Note 3) VCC = 5.5V, VREF = 2.5V l ±0.5 ±1 ±2 ±4 LSB Load Regulation VCC = 5V ±10%, Internal Reference, Mid-Scale, –15mA ≤ IOUT ≤ 15mA l 0.04 0.125 0.6 2 LSB/mA ZSE Zero-Scale Error l 1 3 1 3 mV VOS Offset Error VREF = 2.048V (Note 4) l ±1 ±2 ±1 ±2 mV VOS Temperature Coefficient 2 2 µV/°C GE Gain Error l ±0.02 ±0.1 ±0.02 ±0.1 %FSR Gain Temperature Coefficient 1 1 ppm/°C SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOUT DAC Output Span Internal Reference External Reference = VEXTREF 0 to 4.096 0to2•VEXTREF V V PSR Power Supply Rejection VCC ±10% –80 dB ROUT DC Output Impedance VCC = 5V ±10%, Internal Reference, Mid-Scale, –15mA ≤ IOUT ≤ 15mA l 0.04 0.15 Ω DC Crosstalk (Note 5) Due to Full-Scale Output Change Due to Load Current Change Due to Powering Down (per Channel) ±1.5 ±2 ±1 µV µV/mA µV ISC Short-Circuit Output Current (Note 6) VCC = 5.5V, VEXTREF = 2.75V Code: Zero-Scale, Forcing Output to VCC Code: Full-Scale, Forcing Output to GND l l 20 20 65 65 mA mA Reference Reference Output Voltage 2.044 2.048 2.052 V Reference Temperature Coefficient C-Grade (Note 7) I-Grade (Note 7) ±2 ±2 ±10 ppm/°C ppm/°C Reference Line Regulation VCC ±10% –80 dB Reference Short-Circuit Current VCC = 5.5V, Forcing Output to GND l 3 5 mA REFCOMP Pin Short-Circuit Current VCC = 5.5V, Forcing Output to GND l 60 200 µA Reference Load Regulation VCC = 5V ±10%, IOUT = 100µA Sourcing 40 mV/mA Reference Output Voltage Noise Density CREFCOMP = CREFIN/OUT = 0.1µF at f = 1kHz 35 nV/√Hz 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 |
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