Datasheet LTC1402 (Analog Devices) - 6

LTC1402
W U TYPICAL PERFOR A CE CHARACTERISTICS (Bipolar Mode Plots Run with Dual
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5V Supplies. Unipolar Mode Plots Run with a Single 5V Supply. VDD = 5V, VSS = – 5V for Bipolar, VDD = 5V, VSS = 0V for Unipolar), TA = 25
°
C. Sine Wave Spectrum Plot Sine Wave Spectrum Plot (Bipolar)
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5V Supply (Bipolar) Dual
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5V Supply IMD Spectrum Plot (Bipolar)
10 10 10 0 fSAMPLE = 2222222.22Hz fSAMPLE = 2222222.22Hz fSAMPLE = 2352941.18Hz 0 f 0 + SINE = 109592.01Hz fSINE = 1131727.43Hz f –10 SINEA = 1250000Hz ±1V INTO AIN 2048 SAMPLES –10 2048 SAMPLES –10 f – SINEB = 1199449Hz ±1V INTO AIN –20 –20 –20 IMD = 83.9dB –30 –30 –30 2048 SAMPLES –40 –40 –40 –50 –50 –50 f –60 A – fB fA – 2fB –60 –60 4TH 2ND 2fB 3f –70 B –70 –70 AMPLITUDE (dB) 2ND 5TH 4TH 3RD f f –80 AMPLITUDE (dB) AMPLITUDE (dB) A – fB A + 2fB –80 –80 3RD 6TH 6TH 5TH 2f –90 A 3fA –90 –90 –100 –100 –100 –110 –110 –110 2fA – fB –120 –120 –120 2fA + fB 0 0.55 1.11 0 0.55 1.11 0 0.59 1.18 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 1402 G09 1402 G11 1402 G10
Sine Wave Spectrum Plot Sine Wave Spectrum Plot (Unipolar) 5V Supply (Unipolar) 5V Supply IMD Spectrum Plot (Unipolar)
10 10 10 0 fSAMPLE = 2222222.22Hz 0 fSAMPLE = 2222222.22Hz fSAMPLE = 2352941.18Hz f f 0 + SINE = 109592.01Hz SINE = 1131727.43Hz fSINEA = 1250000Hz INTO AIN , –10 –10 2048 SAMPLES 2048 SAMPLES –10 1.5V TO 3.5V –20 –20 – –20 fSINEB = 1199449Hz INTO AIN , –30 –30 1.5V TO 3.5V –30 IMD = – 84.1dB –40 –40 –40 2048 SAMPLES 3f –50 –50 B –50 f –60 –60 A – fB –60 2ND 4TH 2ND 3RD 2f 2f –70 –70 B A – fB, fA + 2fB –70 AMPLITUDE (dB) 3RD 5TH AMPLITUDE (dB) 4TH 5TH f 2f –80 –80 AMPLITUDE (dB) A + fB A + fB –80 6TH 6TH 2f –90 –90 A 3fA –90 –100 –100 –100 –110 –110 –110 fA – 2fB –120 –120 –120 0 0.55 1.11 0 0.55 1.11 0 0.59 1.18 FREQUENCY (MHz) FREQUENCY (MHz) FREQUENCY (MHz) 1402 G12 1402 G08 1402 G13
4VP-P Power Bandwidth and 100mVP-P Small-Signal Bandwidth PSRR vs Frequency Load Regulation for VREF
5 0 4.100 VCC –10 VSS 0 V 4.090 100mV DD P-P –3 – 20 DGND – 5 4.080 4VP-P – 30 –10 – 40 4070 – 50 AMPLITUDE (dB) –15 REJECTION (dB) .4.060 – 60 – 20 4.050 –70 INTERNAL REFERENCE VOLTAGE (V) – 25 – 80 4.040 0.1 1 10 100 1000 0.1 1 10 100 1000 0 0.4 0.8 1.2 1.6 2.0 FREQUENCY (MHz) FREQUENCY (MHz) LOAD CURRENT (mA) 1402 F07 1402 G18 1402 G20 6