Datasheet LTC6416 (Analog Devices) - 3
| 制造商 | Analog Devices |
| 描述 | 2GHz Low Noise Differential 16-Bit ADC Buffer |
| 页数 / 页 | 20 / 3 — 3.6V ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which … |
| 文件格式/大小 | PDF / 401 Kb |
| 文件语言 | 英语 |
3.6V ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full
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LTC6416
3.6V ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. V+ = 3.6V, GND = 0V, No RLOAD, CLOAD = 6pF. VCM = 1.25V, CLHI = V+, CLLO = 0V unless otherwise noted. VINCM is defi ned as (IN+ + IN–)/2. VOUTCM is defi ned as (OUT+ + OUT–)/2. VINDIFF is defi ned as (IN+ – IN–). VOUTDIFF is defi ned as (OUT+ – OUT–). See DC test circuit schematic. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IVRMIN Input Voltage Range, IN+, IN– Defi ned by Output Voltage Swing Test l 0.1 V (Minimum) (Single-Ended) IVRMAX Input Voltage Range IN+, IN– Defi ned by Output Voltage Swing Test l 2.4 V (Maximum) (Single-Ended) IB Input Bias Current, IN+, IN– IN+ = IN– = 1.25V l –15 –5 15 μA RINDIFF Differential Input Resistance VINDIFF = ±1.2V l 9 12 15 kΩ CINDIFF Differential Input Capacitance 1 pF RINCM Input Common Mode Resistance IN+ = IN– = 0.65V to 1.85V 6 kΩ CMRR Common Mode Rejection Ratio IN+ = IN– = 0.65V to 1.85V, 63.5 83 dB CMRR = (VOUTDIFF/GDIFF/1.2V) l 59.6 dB eN Input Noise Voltage Density f = 100kHz 1.8 nV/√Hz iN Input Noise Current Density f = 100kHz 6.5 pA/√Hz
Output Common Mode Voltage Control
GCM VCM Pin Common Mode Gain VCM = 0.65V to 1.85V l 0.9 0.96 1.05 V/V VINCMDEFAULT Default Input Common Mode Voltage VINCM. IN+, IN–, VCM Pin Floating l 1.3 1.38 1.45 V VOS (VCM – VINCM) Offset Voltage, VCM to VINCM VCM – VINCM, VCM = 1.25V l –70 –28 70 mV VOUTCMDEFAULT Default Output Common Mode Voltage Inputs Floating, VCM Pin Floating l 1.25 1.34 1.45 V VOS (VCM – VOUTCM) Offset Voltage, VCM to VOUTCM VCM – VOUTCM, VCM = 1.25V l –60 15 60 mV VOUTCMMIN Output Common Mode Voltage Range VCM = 0.1V 0.37 0.5 V (Minimum) l 0.55 V VOUTCMMAX Output Common Mode Voltage Range VCM = 2.7V 2.3 2.46 V (Maximum) l 2.25 V VCMDEFAULT VCM Pin Default Voltage l 1.325 1.36 1.425 V RVCM VCM Pin Input Resistance l 2.5 3.8 5.1 kΩ CVCM VCM Pin Input Capacitance 1 pF IBVCM VCM Pin Bias Current VCM = 1.25V l –50 –32 50 μA
DC Clamping Characteristics
VCLHIDEFAULT Default Output Clamp Voltage, High l 2.3 2.45 2.6 V VOS (CLHI – VOUTCM) Offset Voltage, CLHI to VOUTCM l –55 13 55 mV VCLLODEFAULT Default Output Clamp Voltage, Low l 0.125 0.265 0.425 V VOS (CLLO – VOUTCM) Offset Voltage, CLLO to VOUTCM l –120 –70 0 mV RCLHI CLHI Pin Input Resistance VCLHI = 2.45V l 3 4.1 5 kΩ IBCLHI CLHI Pin Bias Current VCLHI = 2.45V l –25 –1 25 μA RCLLO CLLO Pin Input Resistance VCLLO = 0.275V l 1.5 2.3 3.2 kΩ IBCLLO CLLO Pin Bias Current VCLLO = 0.275V l –25 4.5 25 μA
Power Supply
VS Supply Voltage Range l 2.7 3.9 V IS Supply Current 33 42 51 mA l 54 mA PSRR Power Supply Rejection Ratio VS = 2.7V to 3.6V l 57.5 80 dB 6416f 3
3.6V ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. V+ = 3.6V, GND = 0V, No RLOAD, CLOAD = 6pF. VCM = 1.25V, CLHI = V+, CLLO = 0V unless otherwise noted. VINCM is defi ned as (IN+ + IN–)/2. VOUTCM is defi ned as (OUT+ + OUT–)/2. VINDIFF is defi ned as (IN+ – IN–). VOUTDIFF is defi ned as (OUT+ – OUT–). See DC test circuit schematic. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IVRMIN Input Voltage Range, IN+, IN– Defi ned by Output Voltage Swing Test l 0.1 V (Minimum) (Single-Ended) IVRMAX Input Voltage Range IN+, IN– Defi ned by Output Voltage Swing Test l 2.4 V (Maximum) (Single-Ended) IB Input Bias Current, IN+, IN– IN+ = IN– = 1.25V l –15 –5 15 μA RINDIFF Differential Input Resistance VINDIFF = ±1.2V l 9 12 15 kΩ CINDIFF Differential Input Capacitance 1 pF RINCM Input Common Mode Resistance IN+ = IN– = 0.65V to 1.85V 6 kΩ CMRR Common Mode Rejection Ratio IN+ = IN– = 0.65V to 1.85V, 63.5 83 dB CMRR = (VOUTDIFF/GDIFF/1.2V) l 59.6 dB eN Input Noise Voltage Density f = 100kHz 1.8 nV/√Hz iN Input Noise Current Density f = 100kHz 6.5 pA/√Hz
Output Common Mode Voltage Control
GCM VCM Pin Common Mode Gain VCM = 0.65V to 1.85V l 0.9 0.96 1.05 V/V VINCMDEFAULT Default Input Common Mode Voltage VINCM. IN+, IN–, VCM Pin Floating l 1.3 1.38 1.45 V VOS (VCM – VINCM) Offset Voltage, VCM to VINCM VCM – VINCM, VCM = 1.25V l –70 –28 70 mV VOUTCMDEFAULT Default Output Common Mode Voltage Inputs Floating, VCM Pin Floating l 1.25 1.34 1.45 V VOS (VCM – VOUTCM) Offset Voltage, VCM to VOUTCM VCM – VOUTCM, VCM = 1.25V l –60 15 60 mV VOUTCMMIN Output Common Mode Voltage Range VCM = 0.1V 0.37 0.5 V (Minimum) l 0.55 V VOUTCMMAX Output Common Mode Voltage Range VCM = 2.7V 2.3 2.46 V (Maximum) l 2.25 V VCMDEFAULT VCM Pin Default Voltage l 1.325 1.36 1.425 V RVCM VCM Pin Input Resistance l 2.5 3.8 5.1 kΩ CVCM VCM Pin Input Capacitance 1 pF IBVCM VCM Pin Bias Current VCM = 1.25V l –50 –32 50 μA
DC Clamping Characteristics
VCLHIDEFAULT Default Output Clamp Voltage, High l 2.3 2.45 2.6 V VOS (CLHI – VOUTCM) Offset Voltage, CLHI to VOUTCM l –55 13 55 mV VCLLODEFAULT Default Output Clamp Voltage, Low l 0.125 0.265 0.425 V VOS (CLLO – VOUTCM) Offset Voltage, CLLO to VOUTCM l –120 –70 0 mV RCLHI CLHI Pin Input Resistance VCLHI = 2.45V l 3 4.1 5 kΩ IBCLHI CLHI Pin Bias Current VCLHI = 2.45V l –25 –1 25 μA RCLLO CLLO Pin Input Resistance VCLLO = 0.275V l 1.5 2.3 3.2 kΩ IBCLLO CLLO Pin Bias Current VCLLO = 0.275V l –25 4.5 25 μA
Power Supply
VS Supply Voltage Range l 2.7 3.9 V IS Supply Current 33 42 51 mA l 54 mA PSRR Power Supply Rejection Ratio VS = 2.7V to 3.6V l 57.5 80 dB 6416f 3