Datasheet LTC1407, LTC1407A (Analog Devices) - 3

LTC1407/LTC1407A
The ANALOG INPUT
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. With internal reference, VDD = 3V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Analog Differential Input Range (Notes 3, 9) 2.7V ≤ VDD ≤ 3.3V 0 to 2.5 V VCM Analog Common Mode + Differential 0 to VDD V Input Range (Note 10) IIN Analog Input Leakage Current l 1 μA CIN Analog Input Capacitance 13 pF tACQ Sample-and-Hold Acquisition Time (Note 6) l 39 ns tAP Sample-and-Hold Aperture Delay Time 1 ns tJITTER Sample-and-Hold Aperture Delay Time Jitter 0.3 ps tSK Sample-and-Hold Aperture Skew from CH0 to CH1 200 ps CMRR Analog Input Common Mode Rejection Ratio fIN = 1MHz, VIN = 0V to 3V –60 dB fIN = 100MHz, VIN = 0V to 3V –15 dB
DYNAMIC ACCURACY The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. With internal reference, VDD = 3V. LTC1407/LTC1407H LTC1407A/LTC1407AH SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
SINAD Signal-to-Noise Plus 100kHz Input Signal 70.5 73.5 dB Distortion Ratio 750kHz Input Signal l 68 70.5 70 73.5 dB 750kHz Input Signal (H Grade) l 67 70.5 69 73.5 dB 100kHz Input Signal, External VREF = 3.3V, VDD ≥ 3.3V 72.0 76.3 dB 750kHz Input Signal, External VREF = 3.3V, VDD ≥ 3.3V 72.0 76.3 dB THD Total Harmonic 100kHz First 5 Harmonics –87 –90 dB Distortion 750kHz First 5 Harmonics l –83 –77 –86 –80 dB 750kHz First 5 Harmonics (H Grade) l –82 –76 –85 –79 dB SFDR Spurious Free 100kHz Input Signal 87 90 dB Dynamic Range 750kHz Input Signal 83 86 dB IMD Intermodulation 1.25V to 2.5V 1.40MHz into CH0+, 0V to 1.25V, –82 –82 dB Distortion 1.56MHz into CH0–. Also Applicable to CH1+ and CH1– Code-to-Code VREF = 2.5V (Note 17) 0.25 1 LSBRMS Transition Noise Full Power Bandwidth VIN = 2.5VP-P, SDO = 11585LSBP-P (–3dBFS) (Note 15) 50 50 MHz Full Linear Bandwidth S/(N + D) ≥ 68dB 5 5 MHz
INTERNAL REFERENCE CHARACTERISTICS TA = 25°C. VDD = 3V. PARAMETER CONDITIONS MIN TYP MAX UNITS
VREF Output Voltage IOUT = 0 2.5 V VREF Output Tempco 15 ppm/°C VREF Line Regulation VDD = 2.7V to 3.6V, VREF = 2.5V 600 μV/V VREF Output Resistance Load Current = 0.5mA 0.2 Ω VREF Setting Time 2 ms 1407fb 3