Datasheet LT6402-20 (Analog Devices) - 8
| Manufacturer | Analog Devices |
| Description | 300MHz Low Distortion, Low Noise Differential Amplifier/ADC Driver (AV = 20dB) |
| Pages / Page | 16 / 8 — TYPICAL PERFORMANCE CHARACTERISTICS. Distortion vs Output Common Mode … |
| File Format / Size | PDF / 338 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Distortion vs Output Common Mode Voltage LT6402-20 Driving
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LT6402-20
TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Output Common Mode Voltage LT6402-20 Driving Large-Signal Transient Response Overdrive Recovery Time LTC2249 14-Bit ADC
3.4 4.0 –80 RLOAD = 100Ω PER OUTPUT RLOAD = 100Ω PER OUTPUT FILTERED OUTPUTS, NO RLOAD 3.2 V 3.5 OUT = 20MHz 2VP-P 3.0 +OUT –82 3.0 2.8 HD3 2.6 2.5 –84 2.4 2.0 2.2 –86 2.0 1.5 DISTORTION (dBc) HD2 OUTPUT VOLTAGE (V) 1.8 OUTPUT VOLTAGE (V) 1.0 1.6 –88 0.5 –OUT 1.4 1.2 0 –90 TIME (10ns/DIV) TIME (25ns/DIV) 1 1.2 1.4 1.6 1.8 2.0 2.2 2.4 OUTPUT COMMON MODE VOLTAGE (V) 64022 G24 64022 G25 64022 G26
10MHz 8192 Point FFT, LT6402-20 Driving Turn-On Time Turn-Off Time LTC2249 14-Bit ADC
4.0 4.0 0 R 8192 POINT FFT LOAD = 1009 RLOAD = 1009 PER OUTPUT PER OUTPUT –10 f 3.5 3.5 IN = 10MHz, –1dBFS –20 FILTERED OUTPUTS 3.0 3.0 –30 +OUT +OUT –40 2.5 2.5 –50 2.0 2.0 –60 –OUT –OUT –70 1.5 1.5 AMPLITUDE (dBFS) –80 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 1.0 ENABLE 1.0 ENABLE –90 5V 5V –100 0.5 0.5 –110 0V 0V 0 0 –120 TIME (125ns/DIV) TIME (250ns/DIV) 0 5 10 15 20 25 30 35 40 FREQUENCY (MHz) 64022 G27 64022 G28 64022 G29
20MHz 8192 Point FFT, 25MHz 8192 Point FFT, 20MHz 2-Tone 32768 Point FFT, LT6402-20 Driving LT6402-20 Driving LT6402-20 Driving LTC2249 14-Bit ADC LTC2249 14-Bit ADC LTC2249 14-Bit ADC
0 0 0 8192 POINT FFT 8192 POINT FFT 32768 POINT FFT –10 f –10 –10 IN = 20MHz, –1dBFS fIN = 25MHz, –1dBFS TONE 1 AT 19.5MHz, –7dBFS –20 FILTERED OUTPUTS –20 FILTERED OUTPUTS –20 TONE 2 AT 20.5MHz, –7dBFS –30 –30 –30 FILTERED OUTPUTS –40 –40 –40 –50 –50 –50 –60 –60 –60 –70 –70 –70 –80 –90 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –100 –90 –90 –110 –100 –100 –120 –110 –110 –130 –120 –120 –140 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 64022 G30 64022 G31 64022 G32 640220fa 8
TYPICAL PERFORMANCE CHARACTERISTICS Distortion vs Output Common Mode Voltage LT6402-20 Driving Large-Signal Transient Response Overdrive Recovery Time LTC2249 14-Bit ADC
3.4 4.0 –80 RLOAD = 100Ω PER OUTPUT RLOAD = 100Ω PER OUTPUT FILTERED OUTPUTS, NO RLOAD 3.2 V 3.5 OUT = 20MHz 2VP-P 3.0 +OUT –82 3.0 2.8 HD3 2.6 2.5 –84 2.4 2.0 2.2 –86 2.0 1.5 DISTORTION (dBc) HD2 OUTPUT VOLTAGE (V) 1.8 OUTPUT VOLTAGE (V) 1.0 1.6 –88 0.5 –OUT 1.4 1.2 0 –90 TIME (10ns/DIV) TIME (25ns/DIV) 1 1.2 1.4 1.6 1.8 2.0 2.2 2.4 OUTPUT COMMON MODE VOLTAGE (V) 64022 G24 64022 G25 64022 G26
10MHz 8192 Point FFT, LT6402-20 Driving Turn-On Time Turn-Off Time LTC2249 14-Bit ADC
4.0 4.0 0 R 8192 POINT FFT LOAD = 1009 RLOAD = 1009 PER OUTPUT PER OUTPUT –10 f 3.5 3.5 IN = 10MHz, –1dBFS –20 FILTERED OUTPUTS 3.0 3.0 –30 +OUT +OUT –40 2.5 2.5 –50 2.0 2.0 –60 –OUT –OUT –70 1.5 1.5 AMPLITUDE (dBFS) –80 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 1.0 ENABLE 1.0 ENABLE –90 5V 5V –100 0.5 0.5 –110 0V 0V 0 0 –120 TIME (125ns/DIV) TIME (250ns/DIV) 0 5 10 15 20 25 30 35 40 FREQUENCY (MHz) 64022 G27 64022 G28 64022 G29
20MHz 8192 Point FFT, 25MHz 8192 Point FFT, 20MHz 2-Tone 32768 Point FFT, LT6402-20 Driving LT6402-20 Driving LT6402-20 Driving LTC2249 14-Bit ADC LTC2249 14-Bit ADC LTC2249 14-Bit ADC
0 0 0 8192 POINT FFT 8192 POINT FFT 32768 POINT FFT –10 f –10 –10 IN = 20MHz, –1dBFS fIN = 25MHz, –1dBFS TONE 1 AT 19.5MHz, –7dBFS –20 FILTERED OUTPUTS –20 FILTERED OUTPUTS –20 TONE 2 AT 20.5MHz, –7dBFS –30 –30 –30 FILTERED OUTPUTS –40 –40 –40 –50 –50 –50 –60 –60 –60 –70 –70 –70 –80 –90 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –80 AMPLITUDE (dBFS) –100 –90 –90 –110 –100 –100 –120 –110 –110 –130 –120 –120 –140 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 30 35 40 0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 64022 G30 64022 G31 64022 G32 640220fa 8
