LTC2312-12 e lecTrical characTerisTics The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITS VAIN Absolute Input Range l –0.05 VDD + 0.05 V VIN Input Voltage Range (Note 11) l 0 VREF V IIN Analog Input DC Leakage Current l –1 1 µA CIN Analog Input Capacitance Sample Mode 13 pF Hold Mode 3 pF c onverTer characTerisTics The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITS Resolution l 12 Bits No Missing Codes l 12 Bits Transition Noise (Note 6) 0.33 LSBRMS INL Integral Linearity Error VDD = 5V (Note 5) l –1.25 ±0.3 1.25 LSB VDD = 3V (Note 5) l –1.5 ±0.4 1.5 LSB DNL Differential Linearity Error VDD = 5V l –0.99 ±0.2 0.99 LSB VDD = 3V l –0.99 ±0.25 0.99 LSB Offset Error VDD = 5V l –4 ±0.5 4 LSB VDD = 3V l –7 ±1 7 LSB Full-Scale Error VDD = 5V l –8 ±1 8 LSB VDD = 3V l –12 ±2 12 LSB Total Unadjusted Error VDD = 5V l –9 ±2 9 LSB VDD = 3V l –14 ±3 14 LSB DynaMic accuracy The l denotes the specifications which apply over the full operating temperature range,otherwise specifications are at TA = 25°C and AIN = –1dBFS. (Note 4) SYMBOL PARAMETERCONDITIONSMINTYPMAXUNITS SINAD Signal-to-(Noise + Distortion) Ratio fIN = 20kHz, VDD = 5V l 70 72.7 dB fIN = 20kHz, VDD = 3V l 67 70.3 dB SNR Signal-to-Noise Ratio fIN = 20kHz, VDD = 5V l 70.5 73 dB fIN = 20kHz, VDD = 3V l 67.5 70.6 dB THD Total Harmonic Distortion fIN = 20kHz, VDD = 5V l –84 –76 dB First 5 Harmonics fIN = 20kHz, VDD = 3V l –84 –75 dB SFDR Spurious Free Dynamic Range fIN = 20kHz, VDD = 5V l 78 87 dB fIN = 20kHz, VDD = 3V l 76 87 dB IMD Intermodulation Distortion 2nd Order Terms fIN1 = 53kHz, fIN2 = 58kHz, –80 dBc 3rd Order Terms AIN1, AIN2 = –7dBFS –92 dBc Full Power Bandwidth At 3dB 130 MHz At 0.1dB 20 MHz –3dB Input Linear Bandwidth SINAD ≥ 68dB 5 MHz tAP Aperture Delay 1 ns tJITTER Aperture Jitter 10 psRMS 231212fa For more information www.linear.com/LTC2312-12 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts
