LTC1744IFW#TRPBF Linear Technology, LTC1744IFW#TRPBF Datasheet
LTC1744IFW#TRPBF
Specifications of LTC1744IFW#TRPBF
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LTC1744IFW#TRPBF Summary of contents
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... LTC1744 (14 Bit), LTC1743 (12 Bit) 65Msps: LTC1742 (14 Bit), LTC1741 (12 Bit) 80Msps: LTC1748 (14 Bit), LTC1747 (12 Bit) 48-Pin TSSOP Package U APPLICATIO S Telecommunications Receivers Base Stations Spectrum Analysis Imaging Systems , LTC and LT are registered trademarks of Linear Technology Corporation. W BLOCK DIAGRA + DIFFERENTIAL ANALOG INPUT – A ...
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LTC1744 ABSOLUTE MAXIMUM (Notes Supply Voltage (V ) ................................................ 6V DD Analog Input Voltage (Note 3) .... – 0. Digital Input Voltage (Note 4) ..... – 0.3V to ...
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ACCURACY otherwise specifications are SYMBOL PARAMETER SNR Signal-to-Noise Ratio SFDR Spurious Free Dynamic Range S/( Signal-to-(Noise + Distortion) Ratio THD Total Harmonic Distortion IMD Intermodulation Distortion ...
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LTC1744 U U DIGITAL I PUTS A D DIGITAL OUTPUTS operating temperature range, otherwise specifications are at T SYMBOL PARAMETER V High Level Input Voltage IH V Low Level Input Voltage IL I Digital Input Current IN C Digital Input ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Typical INL, 3.2V Range 2 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0 4000 8000 12000 16000 CODE 1744 G01 Nonaveraged, 8192 Point FFT, Input Frequency = ...
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LTC1744 W U TYPICAL PERFOR A CE CHARACTERISTICS Averaged, 8192 Point FFT, Input Frequency = 2.5MHz, – 6dB, 3.2V Range 0 –10.0 –20.0 –30.0 –40.0 –50.0 –60.0 –70.0 –80.0 –90.0 –100.0 –110.0 –120 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Averaged, 8192 Point FFT, Input Frequency = 51MHz, – 20dB, 2V Range 0 –10.0 –20.0 –30.0 –40.0 –50.0 –60.0 –70.0 –80.0 –90.0 –100.0 –110.0 –120 ...
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LTC1744 W U TYPICAL PERFOR A CE CHARACTERISTICS SFDR vs Input Frequency and Amplitude, 3.2V Range 120 – 20dBFS 110 100 – 6dBFS 90 80 –1dBFS 100 INPUT FREQUENCY (MHz) 1744 ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS Input = 5MHz, –25dBFS, No Dither 0 –10 A –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 ...
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LTC1744 DIAGRA N ANALOG INPUT ENCODE t 6 DATA t 5 CLKOUT DATA CTIO AL BLOCK DIAGRA + DIFFERENTIAL CIRCUIT ANALOG ...
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U U APPLICATIO S I FOR ATIO DYNAMIC PERFORMANCE Signal-to-Noise Plus Distortion Ratio The signal-to-noise plus distortion ratio [ D)] is the ratio between the RMS amplitude of the fundamental input frequency and the RMS amplitude of ...
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LTC1744 U U APPLICATIO S I FOR ATIO The LTC1744 has two phases of operation, determined by the state of the differential ENC/ENC input pins. For brev- ity, the text will refer to ENC greater than ENC as ENC high ...
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U U APPLICATIO S I FOR ATIO LTC1744 PARASITIC 8pF V DD – PARASITIC 8pF 5V BIAS 2V 6k ENC ENC 6k 2V Figure 2. Equivalent Input Circuit given sampling capacitor ...
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LTC1744 U U APPLICATIO S I FOR ATIO Input Drive Circuits Figure 3 shows the LTC1744 being driven transformer with a center tapped secondary. The second- ary center tap is DC biased with V CM signal at ...
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U U APPLICATIO S I FOR ATIO An external bypass capacitor of 4 larger is required for the 2.5V reference output frequency low impedance path to ground for internal and external circuitry. This is also the ...
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LTC1744 U U APPLICATIO S I FOR ATIO Input Range The input range can be set based on the application. For oversampled signal processing in which the input fre- quency is low (<10MHz), the largest input range will provide the ...
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U U APPLICATIO S I FOR ATIO Any noise present on the encode signal will result in additional aperture jitter that will be RMS summed with the inherent ADC aperture jitter. In applications where jitter is critical (high input frequen- ...
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LTC1744 U U APPLICATIO S I FOR ATIO DIGITAL OUTPUTS Digital Output Buffers Figure 9 shows an equivalent circuit for a single output buffer. Each buffer is powered by OV lated from the ADC power and ground. The additional N-channel ...
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U U APPLICATIO S I FOR ATIO Output Driver Power Separate output power and ground pins allow the output drivers to be isolated from the analog circuitry. The power supply for the digital output buffers the same power ...
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LTC1744 U U APPLICATIO S I FOR ATIO 1744f ...
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U U APPLICATIO S I FOR ATIO W U Topside Silkscreen Topside Copper Layer Ground Plane, Layer 2 LTC1744 1744f 21 ...
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LTC1744 U U APPLICATIO S I FOR ATIO Split Power Plane, Layer 3 Bottom Side Copper, Layer 4 1744f ...
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... DIMENSIONS DO NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED .254mm (.010") PER SIDE Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...
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... Pin Compatible with the LTC1744 Pin Compatible with the LTC1744 Pin Compatible with the LTC1744 Pin Compatible with the LTC1744 Pin Compatible with the LTC1744 www.linear.com , Low Power, Low Cost OUT 1744f LT/TP 0803 1K • PRINTED IN THE USA LINEAR TECHNOLOGY CORPORATION 2002 ...