Datasheet LTC2325-12 (Analog Devices) - 4

LTC2325-12
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 fIN = 2.2MHz, VREFOUT1,2,3,4 = 4.096V, Internal Reference l 74 76 dB fIN = 2.2MHz, VREFOUT1,2,3,4 = 5V, External Reference 76.5 dB SNR Signal-to-Noise Ratio fIN = 2.2MHz, VREFOUT1,2,3,4 = 4.096V, Internal Reference l 75 77 dB fIN = 2.2MHz, VREFOUT1,2,3,4 = 5V, External Reference 77.6 dB THD Total Harmonic Distortion fIN = 2.2MHz, VREFOUT1,2,3,4 = 4.096V, Internal Reference l –86 –76 dB fIN = 2.2MHz, VREFOUT1,2,3,4 = 5V, External Reference –85 dB SFDR Spurious Free Dynamic Range fIN = 2.2MHz, VREFOUT1,2,3,4 = 4.096V, Internal Reference l 76 93 dB fIN = 2.2MHz, VREFOUT1,2,3,4 = 5V, External Reference 93 dB –3dB Input Bandwidth 95 MHz Aperture Delay 500 ps Aperture Delay Matching 500 ps Aperture Jitter 1 psRMS Transient Response Full-Scale Step 30 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
VREFOUT1,2,3,4 Internal Reference Output Voltage 4.75V < VDD < 5.25V l 4.078 4.096 4.115 V 3.13V < VDD < 3.47V l 2.034 2.048 2.064 V VREF Temperature Coefficient (Note 14) l 3 20 ppm/°C REFOUT1,2,3,4 Output Impedance 0.25 Ω VREFOUT1,2,3,4 Line Regulation 4.75V < VDD < 5.25V 0.3 mV/V IREFOUT1,2,3,4 External Reference Current REFBUFEN = 0V REFOUT1,2,3,4 = 4.096V 500 μA REFOUT1,2,3,4 = 2.048V 300 μA (Notes 9, 10) 232512f 4 For more information www.linear.com/LTC2325-12 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Internal Reference Characteristics Digital Inputs And Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Functional Block Diagram Timing Diagram Applications Information Package Description Typical Application Related Parts