Datasheet LTC1420 (Analog Devices) - 3

LTC1420
U W DY A IC ACCURACY The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VDD = 5V, VSS = –5V, fSAMPLE = 10MHz, VREF = 4.096V. + AIN = – 0.1dBFS single ended input, – AIN = 0V. (Note 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
S/(N + D) Signal-to-Noise Plus Distortion Ratio 1MHz Input Signal ● 68.5 71.4 dB 5MHz Input Signal ● 68 71.0 dB THD Total Harmonic Distortion 1MHz Input Signal, First 5 Harmonics ● – 84 – 77 dB 5MHz Input Signal, First 5 Harmonics ● – 81 – 73 dB SFDR Peak Harmonic or Spurious Noise 1MHz Input Signal ● – 85 – 78.5 dB 5MHz Input Signal ● – 83 – 75 dB IMD Intermodulation Distortion fIN1 = 29.37kHz, fIN2 = 32.446kHz – 80 dB Full-Power Bandwidth 100 MHz Input Referred Noise ±2.048V Input Range 0.22 LSBRMS ±1.024V Input Range, 2x Mode (SENSE = GAIN = 0V) 0.33 LSBRMS Overvoltage Recovery Time 1.5x FS Input to 0 (Settling to 1LSB) 15 ns Full-Scale Step Acquisition Time Settling to 1LSB 15 ns
U U U INTERNAL REFERENCE CHARACTERISTICS TA = 25
°
C. Specifications are guaranteed for both dual supply and single supply operation. (Note 5) PARAMETER CONDITIONS MIN TYP MAX UNITS
VCM Output Voltage IOUT = 0 2.475 2.50 2.525 V VCM Output Tempco IOUT = 0 ±15 ppm/°C VCM Line Regulation 4.75V ≤ VDD ≤ 5.25V 0.6 mV/V – 5.25V ≤ VSS ≤ –4.75V 0.03 mV/V VCM Output Resistance 0.1mA ≤ ⏐IOUT⏐ ≤ 0.1mA 8 Ω VREF Output Voltage SENSE = GND, IOUT = 0 4.096 V SENSE = VREF, IOUT = 0 2.048 V SENSE = VDD Drive VREF with V External Reference VREF Output Tempco ±15 ppm/°C
U U DIGITAL I PUTS A D DIGITAL OUTPUTS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. Specifications are guaranteed for both dual supply and single supply operation. (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIH High Level Input Voltage (Clock Pin) VDD = 5.25V, VSS = 0V ● 2.4 V VDD = 5.25V, VSS = – 5V ● 3.5 V VIL Low Level Input Voltage (Clock Pin) VDD = 4.75V, VSS = 0V ● 0.8 V VDD = 4.75V, VSS = – 5V ● 1 V IIN Digital Input Current VIN = 0V to VDD ● ±10 µA CIN Digital Input Capacitance 1.8 pF VOH High Level Output Voltage 0VDD = 4.75V, IO = –10µA 4.74 V 0VDD = 4.75V, IO = –200µA ● 4.0 4.71 V 0VDD = 2.7V, IO = –10µA 2.6 V 0VDD = 2.7V, IO = –200µA ● 2.3 V VOL Low Level Output Voltage 0VDD = 4.75V, IO = 160µA 0.05 V 0VDD = 4.75V, IO = 1.6mA ● 0.10 0.4 V 0VDD = 2.7V, IO = 160µA 0.05 V 0VDD = 2.7V, IO = 1.6mA ● 0.10 0.4 V ISOURCE Output Source Current VOUT = 0V 50 mA ISINK Output Sink Current VOUT = VDD 35 mA 1420fa 3