DC1398A-GA Linear Technology, DC1398A-GA Datasheet
DC1398A-GA
Specifications of DC1398A-GA
Related parts for DC1398A-GA
DC1398A-GA Summary of contents
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... An optional clock duty cycle stabilizer allows high perfor- mance at full speed with a wide range of clock duty cycles. 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. ...
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LTM9001-GA ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) Supply Voltage (V ) ................................ –0.3V to 3.6V CC Supply Voltage (V ) ................................... –0. Digital Output Supply Voltage ( – Analog Input Current ( ...
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ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER CMRR Common Mode Rejection Ratio I SENSE Input Leakage Current SENSE I MODE Pin Pull-Down Current to GND MODE OE Pin Pull-Down Current to GND ...
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LTM9001-GA DIGITAL INPUTS AND OUTPUTS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER Logic Inputs (DITH, PGA, ADCSHDN, RAND, CLK, OE) V High Level Input Voltage IH V Low Level Input Voltage IL I Input Current IN C ...
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TIMING CHARACTERISTICS range, otherwise specifi cations are SYMBOL PARAMETER f Sampling Frequency (Note CLK Low Time (Note CLK High Time (Note 7) H CMOS Output Mode t CLK to DATA Delay ...
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LTM9001-GA TIMING DIAGRAM ANALOG INPUT CLK D0-D15 CLKOUT – CLKOUT – – – ...
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TYPICAL PERFORMANCE CHARACTERISTICS IF Frequency Response 0 –1 –2 –3 –4 –5 –6 –7 –8 –9 – FREQUENCY (MHz) 9001-GA G01 Integral Non-Linearity (INL) vs Output Code 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 – ...
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LTM9001-GA PIN FUNCTIONS Supply Pins V (Pins E1, E2): 3.3V Analog Supply Pin for Amplifi er. CC The voltage on this pin provides power for the amplifi er stage only and is internally bypassed to GND. V (Pins E5, D5): ...
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PIN FUNCTIONS Pin Confi guration GND GND SENSE – GND AMPSHDN + G IN GND MODE F GND GND RAND PGA GND GND DNC C NC GND DNC ...
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LTM9001-GA FUNCTIONAL BLOCK DIAGRAM 10 9001gaf ...
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... A/D converter, matching network, anti-aliasing fi lter and a low noise, differential amplifi er with fi xed gain designed for digitizing high frequency, wide dynamic range signals with an intermediate frequency (IF) range up to 300MHz. μModule is a registered trademark of Linear Technology Corporation. LTM9001-GA = –20log (2π • f • ...
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... The fi nal result is a fully integrated, accurately tested and reliable solution. For more details on the semi-custom receiver subsystem program, contact Linear Technology. 12 Note that not all combinations of options in Table 1 are possible at this time and specifi ed performance may differ signifi ...
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OPERATION Table 1. Semi-Custom Options AMPLIFIER IF AMPLIFIER INPUT AMPLIFIER RANGE IMPEDANCE GAIN 300MHz 200Ω 20dB 300MHz 200Ω 14dB 300MHz 400Ω 8dB 300MHz 400Ω 8dB Select Combination of Options from Columns Below DC-300MHz 50Ω 26dB DC-140MHz 200Ω 20dB DC-70MHz 200Ω ...
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LTM9001-GA APPLICATIONS INFORMATION INPUT SPAN The LTM9001 is confi gured with a fi xed input span and input impedance. With the amplifi er gain and the ADC input network described above for LTM9001-GA, the full- scale input range of the ...
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APPLICATIONS INFORMATION Alternatively, one could apply a narrowband impedance match at the inputs for frequency selection and/or noise reduction. Referring to Figure 4, amplifi er inputs can be easily confi gured for single-ended input without a balun. The signal is ...
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LTM9001-GA APPLICATIONS INFORMATION PGA Pin The PGA pin selects between two gain settings for the ADC front-end. PGA = low selects the maximum input span; PGA = high selects a 3.5dB lower input span. The high input range has the ...
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APPLICATIONS INFORMATION Maximum and Minimum Encode Rates The maximum encode rate for the LTM9001-GA is 25Msps. For the ADC to operate properly the CLK signal should have a 50% (±5%) duty cycle. Each half cycle must have at least 18.9ns ...
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LTM9001-GA APPLICATIONS INFORMATION As with all high speed/high resolution converters, the digital output loading can affect the performance. The digital outputs of the LTM9001 should drive a minimum capacitive load to avoid possible interaction between the digital outputs and sensitive ...
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APPLICATIONS INFORMATION Output Clock The ADC has a delayed version of the encode input available as a digital output. Both a non-inverted version, CLKOUT and an inverted version, CLKOUT CLKOUT pins can be used to synchronize the converter data to ...
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LTM9001-GA APPLICATIONS INFORMATION As shown in Figure 12, the output of the sample-and-hold amplifi summed with the output of a dither DAC. The dither DAC is driven by a long sequence pseudo-random number generator; the random number fed ...
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APPLICATIONS INFORMATION Heat Transfer Most of the heat generated by the LTM9001 is transferred through the bottom-side ground pads. For good electrical and thermal performance critical that all ground pins are connected to a ground plane of suffi ...
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LTM9001-GA APPLICATIONS INFORMATION Figure 13. Layer 1 Figure 15. Layer 3 22 Figure 14. Layer 2 Figure 16. Layer 4 9001gaf ...
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... Z aaa 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 representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LGA Package 81-Lead (11.25mm × 11.25mm × 2.32mm) ...
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... SNR, 100dB SFDR 1250mW, 77.7dB SNR, 100dB SFDR 1450mW, 77.1dB SNR, 100dB SFDR 3V, 90mA, 39.5dBm OIP3 at 300MHz, 6dB NF 3V, 45mA, 45.5dBm OIP3 at 140MHz, 6dB NF www.linear.com ● – IN LTM9001-GA 9001-GA TA02 LT 0809 • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 9001gaf ...