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LTC1821ACGW Datasheet(PDF) 3 Page - Linear Technology |
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LTC1821ACGW Datasheet(HTML) 3 Page - Linear Technology |
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3 / 16 page  3 LTC1821 The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = TMIN to TMAX, V+ = 15V, V– = – 15V, VCC = 5V, VREF = 10V, AGNDF = AGNDS = DGND = 0V. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Reference Input RREF DAC Input Resistance (Unipolar) (Note 6) q 4.5 6 10 k Ω R1/R2 R1/R2 Resistance (Bipolar) (Notes 6, 11) q 912 20 k Ω ROFS, RFB Feedback and Offset Resistances (Note 6) q 912 20 k Ω AC Performance (Note 4) Output Voltage Settling Time ∆VOUT = 10V (Notes 7, 8) 2 µs Midscale Glitch Impulse (Note 10) 2 nV•s Digital-Feedthrough (Note 9) 2 nV•s Multiplying Feedthrough Error VREF = ±10V, 10kHz Sine Wave (Note 7) 1 mVP-P Multiplying Bandwidth Code = Full Scale (Note 7) 600 kHz Output Noise Voltage Density 1kHz to 100kHz (Note 7) Code = Zero Scale 13 nV/ √Hz Code = Full Scale 20 nV/ √Hz Output Noise Voltage 0.1Hz to 10Hz (Note 7) Code = Zero Scale 0.45 µVRMS Code = Full Scale 1 µVRMS 1/f Noise Corner (Note 7) 30 Hz Analog Outputs (Note 4) VOUT DAC Output Swing RL = 2k, V+ = 15V, V– = –15V q ±12.6 V RL = 2k, V+ = 5V, V– = –5V q ±2.6 V DAC Output Load Regulation V+ = 15V, V– = –15V, ±5mA Load q 0.02 0.2 LSB/mA ISC Short-Circuit Current VOUT = 0V, V + = 15V, V– = –15V q 12 40 mA SR Slew Rate RL = 2k, V+ = 15V, V– = –15V 20 V/ µs RL = 2k, V+ = 5V, V– = –5V 14 V/ µs Digital Inputs VIH Digital Input High Voltage q 2.4 V VIL Digital Input Low Voltage q 0.8 V IIN Digital Input Current q 0.001 ±1 µA CIN Digital Input Capacitance (Note 4 ) VIN = 0V q 8pF Timing Characteristics tDS Data to WR Setup Time q 60 20 ns tDH Data to WR Hold Time q 0–12 ns t WR WR Pulse Width q 60 25 ns tLD LD Pulse Width q 110 55 ns tCLR Clear Pulse Width q 60 40 ns tLWD WR to LD Delay Time q 0ns Power Supply ICC Supply Current, VCC Digital Inputs = 0V or VCC q 1.5 10 µA IS Supply Current, V+, V– ±15V q 4.5 7.0 mA ±5V q 4.0 6.8 mA VCC Supply Voltage q 4.5 5 5.5 V V+ Supply Voltage q 4.5 16.5 V V– Supply Voltage q –16.5 – 4.5 V |
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Similar Description - LTC1821ACGW |
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