Datasheet LTC1285, LTC1288 (Analog Devices) - 3

LTC1285/LTC1288
U U W CONVERTER AND MULTIPLEXER CHARACTERISTICS (Note 5) LTC1285 LTC1288 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
Resolution (No Missing Codes) ● 12 12 Bits Integral Linearity Error (Note 6) ● ±3/4 ±2 ±3/4 ±2 LSB Differential Linearity Error ● ±1/4 ±3/4 ±1/4 ±3/4 LSB Offset Error ● ±3/4 ±3 ±3/4 ±3 LSB Gain Error ● ±2 ±8 ±2 ±8 LSB Analog Input Range (Note 7 and 8) ● – 0.05V to VCC + 0.05V V REF Input Range (LTC1285) 2.7 ≤ VCC ≤ 6V 1.5V to V V CC + 0.05V (Notes 7, 8, and 9) V Analog Input Leakage Current (Note 10) ● ±1 ±1 µA
U DIGITAL AND DC ELECTRICAL CHARACTERISTICS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage VCC = 3.6V ● 2 V VIL Low Level Input Voltage VCC = 2.7V ● 0.8 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 = 2.7V, IO = 10µA ● 2.4 2.64 V VCC = 2.7V, IO = 360µA ● 2.1 2.30 V VOL Low Level Output Voltage VCC = 2.7V, IO = 400µA ● 0.4 V IOZ Hi-Z Output Leakage CS = High ● ±3 µA ISOURCE Output Source Current VOUT = 0V – 10 mA ISINK Output Sink Current VOUT = VCC 15 mA RREF Reference Input Resistance CS = VIH 2700 MΩ (LTC1285) CS = VIL 54 kΩ IREF Reference Current (LTC1285) CS = VCC ● 0.001 2.5 µA tCYC ≥ 640µs, fCLK ≤ 25kHz 50 µA tCYC = 134µs, fCLK = 120kHz ● 50 70 µA ICC Supply Current CS = VCC ● 0.001 ±3.0 µA LTC1285, tCYC ≥ 640µs, fCLK ≤ 25kHz 150 µA LTC1285, tCYC = 134µs, fCLK = 120kHz ● 160 320 µA LTC1288, tCYC ≥ 720µs, fCLK ≤ 25kHz 200 µA LTC1288, tCYC = 150µs, fCLK = 120kHz ● 210 390 µA
U W DYNAMIC ACCURACY fSMPL = 7.5kHz (LTC1285), fSMPL = 6.6kHz (LTC1288) (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N +D) Signal-to-Noise Plus Distortion Ratio 1kHz Input Signal 67 dB THD Total Harmonic Distortion (Up to 5th Harmonic) 1kHz Input Signal – 80 dB SFDR Spurious-Free Dynamic Range 1kHz Input Signal 88 dB Peak Harmonic or Spurious Noise 1kHz Input Signal – 88 dB 3