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LTC2387-18 Dataheets PDF



Part Number LTC2387-18
Manufacturers Linear
Logo Linear
Description 15Msps SAR ADC
Datasheet LTC2387-18 DatasheetLTC2387-18 Datasheet (PDF)

Features nn 15Msps Throughput Rate nn No Pipeline Delay, No Cycle Latency nn 95.7dB SNR (Typ) at fIN = 1MHz nn 102dB SFDR (Typ) at fIN = 1MHz nn Nyquist Sampling Up to 7.5MHz Input nn Guaranteed 18-Bit, No Missing Codes nn ±3LSB INL (Max) nn 8.192VP-P Differential Inputs nn 5V and 2.5V Supplies nn Internal 20ppm/°C (Max) Reference nn Serial LVDS Interface nn 125mW Power Dissipation nn 32-Pin (5mm × 5mm) QFN Package Applications nn High Speed Data Acquisition nn Imaging nn Communications nn Contr.

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Features nn 15Msps Throughput Rate nn No Pipeline Delay, No Cycle Latency nn 95.7dB SNR (Typ) at fIN = 1MHz nn 102dB SFDR (Typ) at fIN = 1MHz nn Nyquist Sampling Up to 7.5MHz Input nn Guaranteed 18-Bit, No Missing Codes nn ±3LSB INL (Max) nn 8.192VP-P Differential Inputs nn 5V and 2.5V Supplies nn Internal 20ppm/°C (Max) Reference nn Serial LVDS Interface nn 125mW Power Dissipation nn 32-Pin (5mm × 5mm) QFN Package Applications nn High Speed Data Acquisition nn Imaging nn Communications nn Control Loops nn Instrumentation nn ATE LTC2387-18 18-Bit, 15Msps SAR ADC Description The LTC®2387-18 is a low noise, high speed, 18-bit 15Msps successive approximation register (SAR) ADC ideally suited for a wide range of applications. The combination of excellent linearity and wide dynamic range makes the LTC2387-18 ideal for high speed imaging and instrumentation applications. No latency operation provides a unique solution for high speed control loop applications. The very low distortion at high input frequencies enables communications applications requiring wide dynamic range and significant signal bandwidth. To support high speed operation while minimizing the number of data lines, the LTC2387-18 features a serial LVDS digital interface. The LVDS interface has one-lane and two-lane output modes, allowing the user to optimize the interface data rate for each application. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 7705765, 8232905, 8810443. Other patents are pending. Typical Application 4.096V 0V 4.096V 0V 0.1µF 5V 0.1µF 2.5V 2.5V 0.1µF 24.9Ω VDD IN+ + 82pF VDDL OVDD CLK DCO LVDS DA INTERFACE DB LTC2387-18 – 24.9Ω 82pF IN– TWOLANES TESTPAT PD 0.1µF VCM REFBUF REFGND REFIN GND CNV SAMPLE CLOCK 10µF 0.1µF 238718 TA01a AMPLITUDE (dBFS) FFT, fSMPL = 15Msps, fIN = 2kHz fIN = 2kHz 0 SNR = 96.0dB –20 THD = –117dB SINAD = 95.7dB –40 SFDR = 119dB –60 –80 –100 –120 –140 –160 0 2.5 5 FREQUENCY (MHz) 7.5 238718 TA01b For more information www.linear.com/LTC2387-18 238718fa 1 LTC2387-18 Absolute Maximum Ratings (Notes 1, 2) Supply Voltage (VDD)...................................................6V Supply Voltage (VDDL, OVDD)....................................2.8V Analog Input Voltage (Note 3) IN+, IN–..........................(GND – 0.3V) to (VDD + 0.3V) REFBUF..........................(GND – 0.3V) to (VDD + 0.3V) REFIN (Note 4)............................(GND – 0.3V) to 2.8V Digital Input Voltage (Note 3) PD, TESTPAT.............. CLK+, CLK–................. TWOLANES, CNV+, (GND (GND – – 0.3V) 0.3V) to to (OVDD (OVDD + + 0.3V) 0.3V) CNV–............................(GND – 0.3V) to (VDDL + 0.3V) Power Dissipation............................................... 500mW Operating Temperature Range LTC2387C................................................


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