Datasheet LTC2066, LTC2067, LTC2068 (Analog Devices) - 3

LTC2066/LTC2067/LTC2068
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. Unless otherwise noted, VS = 1.8V, VCM = VOUT = VS/2, VSHDN = 1.8V, RL to VS/2. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Input Offset Voltage (Note 6) VS = 1.7V 1 ±5 μV l ±10 μV ΔVOS/ΔT Input Offset Voltage Drift (Note 6) –40°C to 85°C l ±0.03 μV/°C –40°C to 125°C l ±0.05 µV/°C IB Input Bias Current (Note 7) ±2 pA IOS Input Offset Current (Note 7) ±4 pA in Input Noise Current Spectral Density f ≤ 100Hz 35 fA/√Hz en Input Noise Voltage Spectral Density f ≤ 100Hz 90 nV/√Hz en P-P Input Noise Voltage DC to 10Hz 1.9 μVP–P CIN Input Capacitance Differential 3.3 pF Common Mode 3.5 pF VCMR Input Voltage Range Guaranteed by CMRR l (V–) – 0.1 (V+) + 0.1 V CMRR Common Mode Rejection Ratio (Note 8) VCM = (V–) – 0.1V to (V+) + 0.1V 103 123 dB RL = 499k l 100 dB PSRR Power Supply Rejection Ratio VS = 1.7V to 5.25V 108 126 dB RL = 499k l 106 dB AVOL Open Loop Gain VOUT = (V–) + 0.1V to (V+) – 0.1V, RL = 499k 135 dB VOL Output Voltage Swing Low (VOUT – V–) RL = 499k 0.05 mV RL = 10k 3 10 mV l 20 mV VOH Output Voltage Swing High (V+ – VOUT) RL = 499k 0.1 mV RL = 10k 4.5 10 mV l 50 mV ISC Output Short Circuit Current Sourcing 5.8 7.5 mA l 4 mA Sinking 10.4 13 mA l 5 mA SR Slew Rate AV = +1 17.5 V/ms GBW Gain Bandwidth Product RL = 499k 100 kHz tON Power-Up Time 0.4 ms fC Internal Chopping Frequency 25 kHz VS Supply Voltage Range Guaranteed by PSRR l 1.7 5.25 V IS Supply Current per Amplifier No Load 7.4 10 μA –40°C to 85°C l 12.5 μA –40°C to 125°C l 20 µA In Shutdown (SHDN = V–) 90 170 nA –40°C to 85°C l 250 nA –40°C to 125°C l 500 nA VH SHDN Pin Threshold, Logic High (Referred to V–) l 1.0 V VL SHDN Pin Threshold, Logic Low (Referred to V–) l 0.65 V ISHDN SHDN Pin Current VSHDN = 0V l –150 –20 nA Rev. B For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Revision History Typical Application Related Parts