ltc2238iuh-trpbf Linear Technology Corporation, ltc2238iuh-trpbf Datasheet
ltc2238iuh-trpbf
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ltc2238iuh-trpbf Summary of contents
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... A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high perfor- mance at full speed for a wide range of clock duty cycles. , LTC and LT are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners • ...
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... GND 8 32-LEAD (5mm × 5mm) PLASTIC QFN ORDER PART NUMBER LTC2238CUH LTC2238IUH LTC2237CUH LTC2237IUH LTC2236CUH LTC2236IUH Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: Consult LTC Marketing for parts specified with wider operating temperature ranges. ...
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ALOG I PUT The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are 25°C. (Note 4) A SYMBOL PARAMETER + V Analog Input Range ( ...
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LTC2238/LTC2237/LTC2236 TER AL REFERE CE CHARACTERISTICS PARAMETER V Output Voltage CM V Output Tempco CM V Line Regulation CM V Output Resistance DIGITAL I PUTS A D DIGITAL OUTPUTS full operating temperature range, ...
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W U POWER REQUIRE E TS range, otherwise specifications are at T SYMBOL PARAMETER CONDITIONS V Analog Supply (Note 9) DD Voltage OV Output Supply (Note 9) DD Voltage I Supply Current VDD P Power Dissipation DISS P Shutdown Power ...
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LTC2238/LTC2237/LTC2236 W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2238: Typical INL, 2V Range, 65Msps 1.00 0.75 0.50 0.25 0 –0.25 –0.50 –0.75 –1.00 0 256 512 768 1024 CODE 223876 G01 LTC2238: 8192 Point FFT 30MHz, –1dB, 2V ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2238: SFDR vs Input Frequency, –1dB, 2V Range, 65Msps 100 100 200 0 150 INPUT FREQUENCY (MHz) 223876 G10 LTC2238: SFDR vs Input Level, f ...
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LTC2238/LTC2237/LTC2236 W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2237: 8192 Point FFT 30MHz, –1dB, 2V Range, IN 40Msps 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 FREQUENCY (MHz) ...
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W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2237: SFDR vs Input Level 5MHz, 2V Range, 40Msps IN 120 110 100 90 dBFS 80 70 dBc 60 80dBc SFDR 50 REFERENCE LINE –60 –40 ...
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LTC2238/LTC2237/LTC2236 W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2236: 8192 Point 2-Tone FFT 10.9MHz and 13.8MHz, IN –1dB, 2V Range, 25Msps 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 ...
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CTIO (Pin 1): Positive Differential Analog Input (Pin 2): Negative Differential Analog Input. IN REFH (Pins 3, 4): ADC High Reference. Short together and bypass to pins 5, 6 ...
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LTC2238/LTC2237/LTC2236 U U FUNCTIONAL BLOCK DIAGRA + A IN INPUT FIRST PIPELINED S/H ADC STAGE – 1.5V REFERENCE 2.2µF RANGE SELECT REF SENSE BUF 12 W SECOND PIPELINED THIRD PIPELINED FOURTH PIPELINED ADC STAGE ADC STAGE ...
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DIAGRA t AP ANALOG N INPUT t H CLK – 5 D0-D9, OF LTC2238/LTC2237/LTC2236 – – 3 ...
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LTC2238/LTC2237/LTC2236 U U APPLICATIO S I FOR ATIO DYNAMIC PERFORMANCE Signal-to-Noise Plus Distortion Ratio The signal-to-noise plus distortion ratio [S/(N + D)] is the ratio between the RMS amplitude of the fundamental input frequency and the RMS amplitude of all ...
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U U APPLICATIO S I FOR ATIO CONVERTER OPERATION As shown in Figure 1, the LTC2238/LTC2237/LTC2236 is a CMOS pipelined multistep converter. The converter has six pipelined ADC stages; a sampled analog input will result in a digitized value five ...
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LTC2238/LTC2237/LTC2236 U U APPLICATIO S I FOR ATIO Single-Ended Input For cost sensitive applications, the analog inputs can be driven single-ended. With a single-ended input the har- monic distortion and INL will degrade, but the SNR and DNL will remain ...
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U U APPLICATIO S I FOR ATIO HIGH SPEED DIFFERENTIAL 25Ω AMPLIFIER ANALOG + + INPUT CM – – 25Ω Figure 4. Differential Drive with an Amplifier Figure 5 shows a single-ended input circuit. The imped- ance seen by the ...
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LTC2238/LTC2237/LTC2236 U U APPLICATIO S I FOR ATIO Reference Operation Figure 9 shows the LTC2238/LTC2237/LTC2236 reference circuitry consisting of a 1.5V bandgap reference, a differ- ence amplifier and switching and control circuit. The inter- nal voltage reference can be configured ...
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U U APPLICATIO S I FOR ATIO Input Range The input range can be set based on the application. The 2V input range will provide the best signal-to-noise perfor- mance while maintaining excellent SFDR. The 1V input range will have ...
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LTC2238/LTC2237/LTC2236 U U APPLICATIO S I FOR ATIO Maximum and Minimum Conversion Rates The maximum conversion rate for the LTC2238/LTC2237/ LTC2236 is 65Msps (LTC2238), 40Msps (LTC2237), and 25Msps (LTC2236). For the ADC to operate properly, the CLK signal should have ...
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U U APPLICATIO S I FOR ATIO Data Format Using the MODE pin, the LTC2238/LTC2237/LTC2236 parallel digital output can be selected for offset binary or 2’s complement format. Connecting MODE to GND or 1/3V selects offset binary output format. Connecting ...
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LTC2238/LTC2237/LTC2236 U U APPLICATIO S I FOR ATIO Heat Transfer Most of the heat generated by the LTC2238/LTC2237/ LTC2236 is transferred from the die through the bottom- side exposed pad and package leads onto the printed circuit board. For good ...
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U U APPLICATIO S I FOR ATIO LTC2238/LTC2237/LTC2236 W U 223876fa 23 ...
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LTC2238/LTC2237/LTC2236 U U APPLICATIO S I FOR ATIO Silkscreen Top Topside 223876fa ...
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U U APPLICATIO S I FOR ATIO Inner Layer 2 GND LTC2238/LTC2237/LTC2236 W U Inner Layer 3 Power 223876fa 25 ...
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LTC2238/LTC2237/LTC2236 U U APPLICATIO S I FOR ATIO Bottomside Silkscreen Bottom 223876fa ...
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... ON THE TOP AND BOTTOM OF PACKAGE 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. LTC2238/LTC2237/LTC2236 ...
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... High IIP3: 20dBm at 1.9GHz, Integrated LO Quadrature Generator High IIP3: 21.5dBm at 900MHz, Integrated LO Quadrature Generator High IIP3: 21dBm at 800MHz, Integrated LO Quadrature Generator 4.5V to 5.25V Supply, 25dBm IIP3 at 900MHz 12.5dB, 50Ω Single-Ended RF and LO Ports www.linear.com ● 223876fa LT 0106 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2004 ...