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LTC1562CG-2 数据表(PDF) 4 Page - Linear Technology |
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LTC1562CG-2 数据表(HTML) 4 Page - Linear Technology |
4 / 16 page 4 LTC1562-2 TYPICAL PERFOR A CE CHARACTERISTICS Peak BP Gain vs Nominal fO (VS = ±5V) (Figure 3, V1 Output) Q Error vs Nominal fO (VS = ±2.5V) Peak BP Gain vs Nominal fO (VS = ±2.5V) (Figure 3, V1 Output) NOMINAL fO (kHz) 100 55 50 45 40 35 30 25 20 15 10 5 0 –5 260 1562-2 G04 140 180 220 300 240 120 160 200 280 Q = 5 Q = 2.5 Q = 1 TA = 70°C TA = 25°C RIN = RQ NOMINAL fO (kHz) 100 0.25 0 0.50 1.00 3.00 2.00 140 180 200 280 2.50 1.50 0.75 1.25 2.25 2.75 1.75 120 160 220 240 260 300 1562-2 G5 Q = 5 Q = 2.5 Q = 1 TA = 70°C TA = 25°C RIN = RQ NOMINAL fO (kHz) 100 0.25 0 0.50 1.00 3.00 2.00 140 180 200 280 2.50 1.50 0.75 1.25 2.25 2.75 4.00 3.50 3.25 3.75 1.75 120 160 220 240 260 300 1562-2 G6 Q = 5 Q = 2.5 Q = 1 TA = 70°C TA = 25°C RIN = RQ LP Noise vs Nominal fO (VS = ±5V, 25°C) (Figure 3, V2 Output) (RIN = R2) NOMINAL fO (kHz) 120 10 30 60 70 80 90 100 160 200 220 1562-2 G07 20 50 40 140 180 240 260 280 Q = 5 Q = 2.5 Q = 1 BP Noise vs Nominal fO (VS = ±5V, 25°C) (Figure 3, V1 Output) (RIN = RQ) NOMINAL fO (kHz) 120 10 30 60 70 80 90 100 160 200 220 1562-2 G08 20 50 40 140 180 240 260 280 Q = 5 Q = 2.5 Q = 1 PIN FUNCTIONS Distortion vs External Load Resistance and Frequency (VS = ±5V, 25°C) (Figure 8) EXTERNAL LOAD RESISTANCE ( Ω) 10k –100 –80 –70 –60 –50 –40 –30 5k 2k 1562-2 G09 –20 –10 0 0.001 0.01 0.1 1 10 100 –90 1k fIN = 20kHz fIN = 50kHz 2nd ORDER LOWPASS fO = 200kHz Q = 0.7 OUTPUT LEVEL 1VRMS (2.83VP-P) ±5V SUPPLIES fIN = 100kHz Power Supply Pins: The V+ and V – pins should be bypassed with 0.1 µF capacitors to an adequate analog ground or ground plane. These capacitors should be connected as closely as possible to the supply pins. Pins 4, 7, 14 and 17 are internally connected to V – (Pin 16) and should also be tied to the same point as Pin 16 for best shielding. Low noise linear supplies are recommended. Switching supplies are not recommended as they will lower the filter dynamic range. Analog Ground (AGND): The AGND pin is the midpoint of a resistive voltage divider, developing a potential halfway between the V + and V – pins, with an equivalent series resistance nominally 7k. This serves as an internal ground reference. Filter performance will reflect the quality of the analog signal ground and an analog ground plane surrounding the package is recommended. The analog ground plane should be connected to any digital ground at a single point. For dual supply operation, the AGND pin |
类似零件编号 - LTC1562CG-2 |
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类似说明 - LTC1562CG-2 |
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