ltc2195 Linear Technology Corporation, ltc2195 Datasheet
ltc2195
Related parts for ltc2195
ltc2195 Summary of contents
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... OUT1B OUT1C OUT1D SERIALIZED OUT2A DATA LVDS OUT2B OUTPUTS OUT2C OUT2D DATA CLOCK OUT FRAME OGND 219543 TA01a LTC2195 LTC2194/LTC2193 allows undersampling of IF frequencies with . RMS – inputs may be driven differentially or 2-Tone FFT 70MHz and 69MHz IN 0 –10 –20 –30 –40 – ...
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... CS, SDI, SCK (Note 4) ...... –0.3V to 3.9V SDO (Note 4) ............................................ –0.3V to 3.9V Digital Output Voltage ................ –0.3V to (OV Operating Temperature Range LTC2195C, LTC2194C, LTC2193C............. 0°C to 70°C LTC2195I, LTC2194I, LTC2193I ............ –40°C to 85°C Storage Temperature Range ................... –65°C to 150°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL ...
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... Per Pin, 125Msps Per Pin, 105Msps Per Pin, 80Msps 0 < – < < PAR/SER < 0.625V < SENSE < 1.3V Single-Ended Encode Differential Encode Figure 6 Test Circuit LTC2195 LTC2194/LTC2193 LTC2194 LTC2193 TYP MAX MIN TYP MAX 16 16 tbd ±2 tbd tbd ±2 tbd – ...
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... V Common Mode Input Voltage ICM V Input Voltage Range IN R Input Resistance IN C Input Capacitance IN 4 The denotes the specifications which apply over the full operating temperature range –1dBFS. (Note 5) IN LTC2195 MIN TYP MAX 76.8 tbd 76.6 l 76.1 90 tbd tbd ...
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... MAX 1.7 1.8 1.9 l 1.7 1.8 1.9 l 224 tbd l 15.5 tbd l 26.6 tbd l 22.7 tbd l 41.2 tbd l 431 tbd l 451 tbd l 444 tbd l 477 tbd LTC2195 LTC2194/LTC2193 MIN TYP MAX 1 3.5 1.3 l 0.6 l – 200 – 247 350 454 l 125 175 250 l 1.125 1.250 1.375 l 1.125 1 ...
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... When these pin voltages are taken above V they will not be clamped by internal diodes. This product can handle input currents of greater than 100mA below GND without latchup. Note 1.8V 125MHz (LTC2195), 105MHz DD DD SAMPLE (LTC2194), or 80MHz (LTC2193), 2-lane output mode, differential + – ...
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... ENCL t t FRAME DATA D15 D13 D11 D14 D12 D10 D8 D6 SAMPLE N–6 – + – , OUT#D , OUT#D ARE DISABLED LTC2195 LTC2194/LTC2193 t SER t SER t SER D11 D9 D15 D10 D8 D14 SAMPLE N–5 219543 TD01 N+1 t SER t SER t ...
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... LTC2195 LTC2194/LTC2193 TIMING DIAGRAMS t AP ANALOG N INPUT t ENCH – ENC + ENC – DCO + DCO t FRAME – – OUT D15 D14 + OUT#A SAMPLE N–7 SAMPLE N–6 + – + – OUT#B , OUT#B , OUT#C , OUT#C , OUT SCK SDI R/W SDO ...
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... FREQUENCY (MHz) 219543 G06 LTC2195: SNR vs Input Frequency, –1dBFS, 125Msps, 2V Range 78 77 SINGLE-ENDED ENCODE DIFFERENTIAL ENCODE 100 150 200 250 300 INPUT FREQUENCY (MHz) ...
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... SAMPLE RATE (Msps) LTC2194: Differential Nonlinearity (DNL) 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 32768 49152 16384 OUTPUT CODE LTC2195: SFDR vs Input Level 70MHz, 125Msps, 2V Range IN 130 120 110 100 250 300 –80 –70 –60 –50 –40 –30 –20 –10 ...
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... Input Frequency, –1dBFS, 105Msps, 1V Range 100 95 3RD 90 85 2ND 300 0 50 100 150 200 INPUT FREQUENCY (MHz) LTC2195 LTC2194/LTC2193 LTC2194: 64k Point FFT 140MHz, –1dBFS, 105Msps IN 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 ...
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... LTC2195 LTC2194/LTC2193 TYPICAL PERFORMANCE CHARACTERISTICS LTC2194 Sample Rate, VDD 5MHz, –1dBFS Sine Wave Input 190 180 170 160 150 140 130 100 SAMPLE RATE (Msps) 219543 G28 LTC2193: Integral Nonlinearity (INL) 4.0 3.0 2.0 1.0 0 –1.0 –2.0 –3.0 –4.0 0 16384 32768 49152 ...
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... Sine Wave Input 45 4-LANE, 3.5mA 35 4-LANE, 1.75mA 2-LANE, 3.5mA 25 1-LANE, 3.5mA 15 2-LANE, 1.75mA 1-LANE, 1.75mA SAMPLE RATE (Msps) LTC2195 LTC2194/LTC2193 LTC2193: SNR vs Input Frequency, –1dBFS, 80Msps, 2V Range 78 77 SINGLE-ENDED 76 75 DIFFERENTIAL 74 ENCODE 32841 0 50 ...
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... LTC2195 LTC2194/LTC2193 PIN FUNCTIONS V (Pin 1): Common Mode Bias Output, Nominally Equal CM1 to V /2. V should be used to bias the common mode DD CM1 of the analog inputs of channel 1. Bypass to ground with a 0.1µF ceramic capacitor. GND (Pins 2, 5, 13, 22, 45, 47, 49, Exposed Pad Pin 65): ADC Power Ground. The exposed pad must be soldered to the PCB ground ...
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... OUT1A /OUT1A (Pins 37/38, 39/40, 41/42, 43/44): Serial Data Outputs for Channel 1. In 1-lane output mode only – + OUT1A /OUT1A are used. In 2-lane output mode only – + – OUT1A /OUT1A and OUT1B /OUT1B LTC2195 + – OUT2B /OUT2B , + are used. + – OUT1B /OUT1B , + are used. 219543p ...
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... LTC2195 LTC2194/LTC2193 FUNCTIONAL BLOCK DIAGRAM CH1 ANALOG S/H INPUT CH2 ANALOG S/H INPUT V REF 1.25V REFERENCE 2.2µF RANGE SELECT REF BUF SENSE 16 1.8V + ENC V DD 16-BIT ADC CORE 16-BIT ADC CORE REFH REFL DIFF REF AMP REFH REFL V CM1 2.2µF 0.1µF 0.1µF 0.1µF Figure 1. Functional Block Diagram – ...
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... APPLICATIONS INFORMATION CONVERTER OPERATION The LTC2195/LTC2194/LTC2193 are low power, 2-channel, 16-bit, 125/105/80Msps A/D converters that are powered by a single 1.8V supply. The analog inputs should be driven differentially. The encode input can be driven differentially or single ended for lower power consumption. To minimize the number of data lines the digital outputs are serial LVDS. ...
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... RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE 0.1µF 4.7nH LTC2195 0.1µ 4.7nH A IN – T1: MA/COM ETC1-1-13 RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE V CM 0.1µF 200 200 0.1µ LTC2195 12pF 0.1µ – 12pF LTC2195 219543 F05 219543 F06 219543 F07 219543p ...
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... APPLICATIONS INFORMATION Reference The LTC2195/LTC2194/LTC2193 have an internal 1.25V voltage reference. For a 2V input range using the internal reference, connect SENSE For a 1V input range DD using the internal reference, connect SENSE to ground. For a 2V input range with an external reference, apply a 1.25V reference voltage to SENSE (Figure 9). ...
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... T1 100Ω 50Ω 0.1µF – ENC 0.1µ MA/COM ETC1-1-13 219543 F12 RESISTORS AND CAPACITORS ARE 0402 PACKAGE SIZE Figure 12. Sinusoidal Encode Drive 0.1µF + ENC PECL OR LTC2195 LVDS CLOCK 0.1µF – ENC 219543 F13 Figure 13. PECL or LVDS Encode Drive + + should 219543p ...
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... The outputs are powered by OVDD and OGND which are isolated from the A/D core power and ground. Table 1. Maximum Sampling Frequency for All Serialization Modes. Note That These Limits are for the LTC2195. The Sampling Frequency for the Slower Speed Grades Cannot Exceed 105MHz (LTC2194) or 80MHz (LTC2193). ...
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... Nap mode is enabled by mode control register A1 in the serial programming mode. 22 DEVICE PROGRAMMING MODES The operating modes of the LTC2195/LTC2194/LTC2193 can be programmed by either a parallel interface or a simple serial interface. The serial interface has more flex- ibility and can program all available modes. The parallel interface is more limited and can only program some of the more commonly used modes ...
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... To perform a software reset, bit D7 in the reset register is written with a logic 1. After the reset is complete, bit D7 is automatically set back to zero SLEEP NAP_2 LTC2195 LTC2194/LTC2193 NAP_1 219543p ...
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... LTC2195 LTC2194/LTC2193 APPLICATIONS INFORMATION REGISTER A2: OUTPUT MODE REGISTER (ADDRESS 02h ILVDS2 ILVDS1 ILVDS0 Bits 7-5 ILVDS2:ILVDS0 LVDS Output Current Bits 000 = 3.5mA LVDS Output Driver Current 001 = 4.0mA LVDS Output Driver Current 010 = 4.5mA LVDS Output Driver Current 011 = Not Used 100 = 3 ...
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... HEAT TRANSFER Most of the heat generated by the LTC2195/LTC2194/ LTC2193 is transferred from the die through the bottom- side exposed pad and package leads onto the printed circuit board. For good electrical and thermal performance, the exposed pad must be soldered to a large grounded pad on the PC board ...
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... LTC2195 LTC2194/LTC2193 TYPICAL APPLICATIONS Top Side Inner Layer 3 Inner Layer 5 26 Inner Layer 2 Inner Layer 4 Bottom Side 219543p ...
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... DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.20mm ON ANY SIDE, IF PRESENT 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE LTC2195 LTC2194/LTC2193 5.50 REF (2 SIDES 0.115 ...
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... LTC2195 LTC2194/LTC2193 TYPICAL APPLICATION 1.8V 1. CH1 16-BIT S/H ANALOG ADC CORE INPUT CH2 16-BIT DATA ANALOG S/H ADC CORE SERIALIZER INPUT ENCODE PLL INPUT GND OGND 219543 TA01a RELATED PARTS PART NUMBER DESCRIPTION ADCs LTC2259-14/LTC2260-14/ 14-Bit, 80Msps/105Msps/125Msps LTC2261-14 1.8V ADCs, Ultralow Power LTC2262-14 14-Bit, 150Msps 1 ...