Datasheet LTC6401-26 (Analog Devices) - 7
| Manufacturer | Analog Devices |
| Description | 1.6GHz Low Noise, Low Distortion Differential ADC Driver for DC-140MHz |
| Pages / Page | 16 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS. Noise Figure and Input Referred … |
| File Format / Size | PDF / 238 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Noise Figure and Input Referred Noise Voltage vs Frequency
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LTC6401-26
TYPICAL PERFORMANCE CHARACTERISTICS Noise Figure and Input Referred Noise Voltage vs Frequency Small Signal Transient Response
9 2.0 1.35 RL = 87.5Ω PER OUTPUT INPUT REFERRED NOISE VOLTAGE TEST CIRCUIT B +OUT 8 1.5 1.30 EN (nV/ √ 7 1.0 Hz) 1.25 NOISE FIGURE (dB) NOISE FIGURE OUTPUT VOLTAGE (V) –OUT 6 0.5 1.20 5 0 1.15 10 100 1000 0 2 4 6 8 10 FREQUENCY (MHz) TIME (ns) 640126 G07 640126 G08
Large Signal Transient Response Overdriven Transient Response
2.5 2.5 R R L = 87.5Ω PER OUTPUT L = 87.5Ω PER OUTPUT TEST CIRCUIT B –OUT 2.0 2.0 +OUT 1.5 1.5 1.0 1.0 –OUT OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 0.5 0.5 +OUT TEST CIRCUIT B 0 0 0 4 8 12 16 20 0 50 100 150 200 250 TIME (ns) TIME (ns) 640126 G09 640126 G10
1% Settling Time for 2V Output Step Harmonic Distortion vs Frequency
5 –40 DIFFERENTIAL INPUT 4 VOUT = 2VP-P –50 3 2 –60 1 –70 0 –80 –1 SETTLING (%) –2 –90 HD2 NO R –3 L HARMONIC DISTORTION (dBc) HD2 R –100 L = 200Ω –4 R HD3 NO R L = 87.5Ω PER OUTPUT L TEST CIRCUIT B HD3 RL = 200Ω –5 –110 0 1 2 3 4 5 0 50 100 150 200 TIME (ns) FREQUENCY (MHz) 640126 G11 640126 G12 640126f 7
TYPICAL PERFORMANCE CHARACTERISTICS Noise Figure and Input Referred Noise Voltage vs Frequency Small Signal Transient Response
9 2.0 1.35 RL = 87.5Ω PER OUTPUT INPUT REFERRED NOISE VOLTAGE TEST CIRCUIT B +OUT 8 1.5 1.30 EN (nV/ √ 7 1.0 Hz) 1.25 NOISE FIGURE (dB) NOISE FIGURE OUTPUT VOLTAGE (V) –OUT 6 0.5 1.20 5 0 1.15 10 100 1000 0 2 4 6 8 10 FREQUENCY (MHz) TIME (ns) 640126 G07 640126 G08
Large Signal Transient Response Overdriven Transient Response
2.5 2.5 R R L = 87.5Ω PER OUTPUT L = 87.5Ω PER OUTPUT TEST CIRCUIT B –OUT 2.0 2.0 +OUT 1.5 1.5 1.0 1.0 –OUT OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 0.5 0.5 +OUT TEST CIRCUIT B 0 0 0 4 8 12 16 20 0 50 100 150 200 250 TIME (ns) TIME (ns) 640126 G09 640126 G10
1% Settling Time for 2V Output Step Harmonic Distortion vs Frequency
5 –40 DIFFERENTIAL INPUT 4 VOUT = 2VP-P –50 3 2 –60 1 –70 0 –80 –1 SETTLING (%) –2 –90 HD2 NO R –3 L HARMONIC DISTORTION (dBc) HD2 R –100 L = 200Ω –4 R HD3 NO R L = 87.5Ω PER OUTPUT L TEST CIRCUIT B HD3 RL = 200Ω –5 –110 0 1 2 3 4 5 0 50 100 150 200 TIME (ns) FREQUENCY (MHz) 640126 G11 640126 G12 640126f 7
