Datasheet LTC2338-18 (Analog Devices) - 3

LTC2338-18
CONVERTER CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Resolution l 18 Bits No Missing Codes l 18 Bits Transition Noise 0.8 LSBRMS INL Integral Linearity Error (Note 6) l –4 ±1 4 LSB DNL Differential Linearity Error l –1 ±0.1 1 LSB BZE Bipolar Zero-Scale Error (Note 7) l –15 0 15 LSB Bipolar Zero-Scale Error Drift 0.01 LSB/°C FSE Bipolar Full-Scale Error VREFBUF = 4.096V (REFBUF Overdriven) (Notes 7, 9) l –100 100 LSB REFIN = 2.048V (Note 7) l –150 150 LSB Bipolar Full-Scale Error Drift ±0.5 ppm/°C
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. (Notes 4, 8) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
SINAD Signal-to-(Noise + Distortion) Ratio ±6.25V Range, fIN = 2kHz, REFIN = 1.25V l 93 97 dB ±10.24V Range, fIN = 2kHz, REFIN = 2.048V l 95 100 dB ±12.5V Range, fIN = 2kHz, REFBUF = 5V l 96 101 dB SNR Signal-to-Noise Ratio ±6.25V Range, fIN = 2kHz, REFIN = 1.25V l 93.5 97 dB ±10.24V Range, fIN = 2kHz, REFIN = 2.048V l 96 100 dB ±12.5V Range, fIN = 2kHz, REFBUF = 5V l 98 102 dB THD Total Harmonic Distortion ±6.25V Range, fIN = 2kHz, REFIN = 1.25V l –111 –102 dB ±10.24V Range, fIN = 2kHz, REFIN = 2.048V l –115 –102 dB ±12.5V Range, fIN = 2kHz, REFBUF = 5V l –112 –100 dB SFDR Spurious Free Dynamic Range ±6.25V Range, fIN = 2kHz, REFIN = 1.25V l 102 113 dB ±10.24V Range, fIN = 2kHz, REFIN = 2.048V l 102 117 dB ±12.5V Range, fIN = 2kHz, REFBUF = 5V l 100 114 dB –3dB Input Linear Bandwidth 7 MHz Aperture Delay 500 ps Aperture Jitter 4 ps Transient Response Full-Scale Step 500 ns
INTERNAL REFERENCE CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Note 4) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VREFIN Internal Reference Output Voltage 2.043 2.048 2.053 V VREFIN Temperature Coefficient (Note 14) l 2 20 ppm/°C REFIN Output Impedance 15 kΩ VREFIN Line Regulation VDD = 4.75V to 5.25V 0.08 mV/V REFIN Input Voltage Range (REFIN Overdriven) (Note 5) 1.25 2.4 V 233818fa For more information www.linear.com/LTC2338-18 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Reference Buffer Characteristics Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Board Layout Package Description Revision History Typical Application Related Parts