LTC1283 UU WCO VERTER A D ULTIPLEXER CHARACTERISTICS (Note 3)LTC1283ALTC1283PARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITS Offset Error (Note 4) ● ±0.5 ±0.5 LSB Linearity Error (Notes 4 and 5) ● ±0.5 ±0.5 LSB Gain Error (Note 4) ● ±1.0 ±2.0 LSB Minimum Resolution for Which No ● 10 10 Bits Missing Codes are Guaranteed Reference Input Resistance 10 10 kΩ Analog and REF Input Range (Note 6) (V –) – 0.05V to V V CC + 0.05V On Channel Leakage Current On Channel = 3V ● 1 1 μA (Note 7) Off Channel = 0V On Channel = 0V ● – 1 – 1 μA Off Channel = 3V Off Channel Leakage Current On Channel = 3V ● – 1 – 1 μA (Note 7) Off Channel = 0V On Channel = 0V ● 1 1 μA Off Channel = 3V AC CHARACTERISTICS (Note 3)LTC1283/LTC1283ASYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS tACC Delay Time From CS↓ to DOUT Data Valid (Note 8) 2 ACLK Cycles tSMPL Analog Input Sample Time See Operating Sequence 5 SCLK Cycles tCONV Conversion Time See Operating Sequence 44 ACLK Cycles tdDO Delay Time, SCLK↓ to DOUT Data Valid See Test Circuts ● 400 900 ns tdis Delay Time, CS↑ to DOUT Hi-Z See Test Circuits ● 240 500 ns ten Delay Time, 2nd CLK↓ to DOUT Enabled See Test Circuits ● 300 800 ns thDO Time Output Data Remains Valid After SCLK↓ 75 ns tf DOUT Fall Time See Test Circuits ● 90 300 ns tr DOUT Rise Time See Test Circuits ● 80 300 ns CIN Input Capacitance Analog Inputs On Channel 65 pF Off Channel 5 pF Digital Inputs 5 pF UDIGITAL A D DC ELECTRICAL CHCARA TER SI TICS (Note 3)LTC1283/LTC1283ASYMBOLPARAMETERCONDITIONSMINTYPMAXUNITS VIH High Level Input Voltage VCC = 3.6V ● 1.7 V VIL Low Level Input Voltage VCC = 3V ● 0.45 V IIH High Level Input Current VIN = VCC ● 2.5 μA IIL Low Level Input Current VIN = 0V ● – 2.5 μA VOH High Level Output Voltage VCC = 3V, IO = – 20μA 2.6 2.8 V IO = – 200μA ● 2.0 V VOL Low Level Output Voltage VCC = 3V, IO = 20μA 0.05 V IO = 400μA ● 0.10 0.30 V 1283fb 3
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