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LTC1860L Datasheet(PDF) 6 Page - Linear Technology |
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LTC1860L Datasheet(HTML) 6 Page - Linear Technology |
6 / 12 page 6 LTC1860L/LTC1861L 18601Lf 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 TEMPERATURE ( °C) –50 25 75 1860L/61L G13 1860L/61L G14 –25 0 50 100 125 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 1 80 70 60 50 40 30 20 10 0 10 100 1860L/61L G15 fIN (kHz) 1 80 70 60 50 40 30 20 10 0 10 100 1860L/61L G16 fIN (kHz) 1 10 100 1860L/61L G17 100 90 80 70 60 50 40 30 20 10 0 fIN (kHz) 1 10 100 1860L/61L G18 0 5 15 25 35 45 55 65 75 10 20 30 40 50 60 70 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 fIN (kHz) fIN (kHz) fS = 150kHz VCC = 2.7V VREF = 2.5V fS = 150kHz TA = 25°C VCC = 3V VIN = 0dB VREF = 3V fIN = 1kHz fS = 150kHz TA = 25°C VCC = 3V VREF = 3V fS = 150kHz TA = 25°C VCC = 3V VIN = 0dB VREF = 3V fS = 150kHz TA = 25°C VCC = 3V VIN = 0dB VREF = 3V fS = 150kHz TA = 25°C VCC = 3V VIN = 0dB VREF = 3V VREF (Pin 1): Reference Input. The reference input defines the span of the A/D converter and must be kept free of noise with respect to GND. IN+, IN– (Pins 2, 3): Analog Inputs. These inputs must be free of noise with respect to GND. GND (Pin 4): Analog Ground. GND should be tied directly to an analog ground plane. CONV (Pin 5): Convert Input. A logic high on this input starts the A/D conversion process. If the CONV input is left PI FU CTIO S LTC1860L high after the A/D conversion is finished, the part powers down. A logic low on this input enables the SDO pin, allowing the data to be shifted out. SDO (Pin 6): Digital Data Output. The A/D conversion result is shifted out of this pin. SCK (Pin 7): Shift Clock Input. This clock synchronizes the serial data transfer. VCC (Pin 8): Positive Supply. This supply must be kept free of noise and ripple by bypassing directly to the analog ground plane. TYPICAL PERFOR A CE CHARACTERISTICS Change in Gain Error vs Temperature SNR vs fIN 4096 Point FFT Non Averaged Signal-to-(Noise + Distortion) vs fIN Total Harmonic Distortion vs fIN Spurious Free Dynamic Range vs fIN |
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