Datasheet LTC6268, LTC6269 (Analog Devices) - 9

LTC6268/LTC6269
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. 0.1Hz to 10Hz Output Voltage Noise Input Referred Current Noise Gain and Phase vs Frequency
20 100 60 0 VS = ±2.5V VS = ±2.5V RL = 1k, CL = 10pF 16 VCM = 1.5V VCM = 0.25V 50 RL = 1k, CL = 0pF –20 12 ) 40 –40 Hz V) 8 GAIN 10 30 –60 4 PHASE 20 –80 0 PHASE GAIN (dB) 10 –100 TAGE NOISE (µ –4 1 0 –120 VOL –8 CURRENT NOISE (pA/√ –12 –10 –140 VS = ±2.5V –16 –20 V –160 CM = 0.25V A = 1000 –20 0.1 –30 –180 0 1 2 3 4 5 6 7 8 9 10 1 10 100 0.1 1 10 100 1000 TIME (s) FREQUENCY (MHz) FREQUENCY (MHz) 6268 G19 6268 G20 6268 G21
Output Impedance vs Frequency Harmonic Distortion vs Frequency Harmonic Distortion vs Amplitude
1000 –20 –20 VS = ±2.5V VS = ±2.5V VS = ±2.5V VCM = 0.25V VOUT = 2VP-P VCM = –0.75V 100 –40 RL = 1k –40 RL = 1k AV = 1 AV = 1 V fO = 1MHz 10 –60 CM = –0.75V –60 1 TION (dB) –80 TION (dB) –80 2ND 2ND HD 0.1 DISTOR –100 DISTOR –100 OUTPUT IMPEDANCE (Ω) 3RD 3RD HD 0.01 AV = 100 –120 –120 AV = 10 AV = 1 0.001 –140 –140 0.001 0.01 0.1 1 10 100 1000 0.1 1 10 0.5 1 1.5 2 FREQUENCY (MHz) FREQUENCY (MHz) AMPLITUDE (VP-P) 6268 G22 6268 G23 6268 G24
Harmonic Distortion vs Amplitude 50mV Step Response 50mV Step Response
–20 80 80 VS = ±2.5V VCM = 4.5V VCM = 4.5V VCM = –0.75V 70 VCM = 2.5V 70 VCM = 2.5V –40 RL = 1k 60 VCM = 0.5V 60 VCM = 0.5V AV = 1 fO = 10MHz 50 50 –60 40 40 2ND HD 30 30 TION (dB) –80 (mV) (mV) 20 20 V OUT V OUT DISTOR –100 3RD HD 10 10 0 0 A A –120 V = 1 –10 V = 1 V –10 S = 0, 5V VS = 0, 5V –20 VCM = 0.5V, 2.5V, 4.5V –20 VCM = 0.5V, 2.5V, 4.5V RLOAD = 1k R –140 –30 LOAD = 1k, CLOAD = 10pF –30 0.25 0.5 0.75 1 1.25 1.5 1.75 2 0 5 10 15 20 25 30 35 40 45 50 0 5 10 15 20 25 30 35 40 45 50 AMPLITUDE (VP-P) TIME (nS) TIME (nS) 6268 G25 6268 G26 6268 G26a 62689f For more information www.linear.com/LTC6268 9