LTC2172CUKG-14#PBF Linear Technology, LTC2172CUKG-14#PBF Datasheet
LTC2172CUKG-14#PBF
Specifications of LTC2172CUKG-14#PBF
Related parts for LTC2172CUKG-14#PBF
LTC2172CUKG-14#PBF Summary of contents
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... Software Defi ned Radios n n Portable Medical Imaging n Multichannel Data Acquisition n Nondestructive Testing 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. TYPICAL APPLICATION 1. CHANNEL 1 14-BIT ...
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... Digital Output Voltage ................ –0.3V to (OV Operating Temperature Range LTC2172C, LTC2171C, LTC2170C............. 0°C to 70°C LTC2172I, LTC2171I, LTC2170I ............ –40°C to 85°C Storage Temperature Range ................... –65°C to 150°C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC2172CUKG-14#PBF LTC2172CUKG-14#TRPBF LTC2172IUKG-14#PBF LTC2172IUKG-14#TRPBF LTC2171CUKG-14#PBF LTC2171CUKG-14#TRPBF LTC2171IUKG-14#PBF LTC2171IUKG-14#TRPBF ...
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CONVERTER CHARACTERISTICS temperature range, otherwise specifi cations are at T PARAMETER CONDITIONS Resolution (No Missing Codes) Integral Linearity Error Differential Analog Input (Note 6) Differential Linearity Error Differential Analog Input Offset Error (Note 7) Gain Error Internal Reference External Reference ...
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LTC2172-14/ LTC2171-14/LTC2170-14 DYNAMIC ACCURACY otherwise specifi cations are 25° SYMBOL PARAMETER CONDITIONS SNR Signal-to-Noise Ratio 5MHz Input 30MHz Input 70MHz Input 140MHz Input SFDR Spurious Free Dynamic Range 5MHz Input 2nd or 3rd Harmonic 30MHz ...
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DIGITAL INPUTS AND OUTPUTS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER + – ENCODE INPUTS (ENC , ENC ) – Differential Encode Mode (ENC Not Tied to GND) V Differential Input Voltage ID V Common Mode Input ...
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LTC2172-14/ LTC2171-14/LTC2170-14 POWER REQUIREMENTS range, otherwise specifi cations are SYMBOL PARAMETER CONDITIONS V Analog Supply Voltage (Note 10 Output Supply Voltage (Note 10 Analog Supply Current Sine Wave Input VDD I Digital Supply ...
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TIMING CHARACTERISTICS range, otherwise specifi cations are SYMBOL PARAMETER CONDITIONS Digital Data Outputs (R = 100Ω Differential, C TERM t Serial Data Bit Period 2-Lanes, 16-Bit Serialization SER 2-Lanes, 14-Bit Serialization 2-Lanes, 12-Bit Serialization 1-Lane, 16-Bit Serialization ...
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LTC2172-14/ LTC2171-14/LTC2170-14 TIMING DIAGRAMS ANALOG INPUT – ENC + ENC – DCO + DCO – – OUT OUT#A – OUT OUT#B SAMPLE N-6 *SEE THE DIGITAL OUTPUTS SECTION t AP ANALOG ...
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TIMING DIAGRAMS ANALOG INPUT – ENC + ENC – DCO + DCO + FR – FR – OUT OUT#A – OUT OUT#B SAMPLE N ANALOG INPUT N t ENCH – ENC + ENC – ...
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LTC2172-14/ LTC2171-14/LTC2170-14 TIMING DIAGRAMS t AP ANALOG INPUT N t ENCH – ENC + ENC – DCO + DCO – – OUT D13 + OUT#A SAMPLE N-6 SAMPLE N-5 + – ...
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TIMING DIAGRAMS SCK SDI R/W SDO HIGH IMPEDANCE CS SCK SDI R/W SDO HIGH IMPEDANCE LTC2171-14/LTC2170-14 SPI Port Timing (Readback Mode SCK ...
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LTC2172-14/ LTC2171-14/LTC2170-14 TYPICAL PERFORMANCE CHARACTERISTICS LTC2172-14: Integral Nonlinearity (INL) 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0 8192 12288 16384 4096 OUTPUT CODE 217214 G01 LTC2172-14: 8k Point FFT 30MHz IN –1dBFS, 65Msps 0 –10 –20 ...
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TYPICAL PERFORMANCE CHARACTERISTICS LTC2172-14: SFDR vs Input Frequency, –1dBFS, 2V Range, 65Msps 100 150 200 250 300 INPUT FREQUENCY (MHz) 217214 G10 LTC2172-14 Sample Rate, VDD 5MHz Sine Wave ...
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LTC2172-14/ LTC2171-14/LTC2170-14 TYPICAL PERFORMANCE CHARACTERISTICS LTC2171-14: 8k Point FFT 29MHz IN –1dBFS, 40Msps 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 –110 –120 0 10 FREQUENCY (MHz) 217214 G18 LTC2171-14: 8k Point 2-Tone FFT, f ...
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TYPICAL PERFORMANCE CHARACTERISTICS LTC2171-14: SNR vs SENSE 5MHz, –1dBFS 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 SENSE PIN (V) 217214 G27 LTC2170-14: 8k Point FFT ...
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LTC2172-14/ LTC2171-14/LTC2170-14 TYPICAL PERFORMANCE CHARACTERISTICS LTC2170-14: SNR vs Input Frequency, –1dBFS, 2V Range, 25Msps 100 150 200 250 300 350 INPUT FREQUENCY (MHz) 217214 G36 LTC2170-14 Sample ...
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PIN FUNCTIONS + A (Pin 1): Channel 1 Positive Differential Analog IN1 Input. – A (Pin 2): Channel 1 Negative Differential Analog IN1 Input. V (Pin 3): Common Mode Bias Output, Nominally CM12 Equal to V /2. V should be ...
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LTC2172-14/ LTC2171-14/LTC2170-14 PIN FUNCTIONS mode (PAR/SER = V ), SDO is an input that enables DD internal 100Ω termination resistors on the digital out- puts. When used as an input, SDO can be driven with 1.8V to 3.3V logic through ...
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FUNCTIONAL BLOCK DIAGRAM 1.8V CHANNEL 1 14-BIT SAMPLE- ANALOG AND-HOLD ADC CORE INPUT CHANNEL 2 14-BIT SAMPLE- ANALOG ADC CORE AND-HOLD INPUT CHANNEL 3 14-BIT SAMPLE- ANALOG ADC CORE AND-HOLD INPUT CHANNEL 4 SAMPLE- 14-BIT ANALOG AND-HOLD ADC CORE INPUT ...
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LTC2172-14/ LTC2171-14/LTC2170-14 APPLICATIONS INFORMATION CONVERTER OPERATION The LTC2172-14/LTC2171-14/LTC2170-14 are low power, 4-channel, 14-bit, 65Msps/40Msps/25Msps A/D convert- ers that are powered by a single 1.8V supply. The analog inputs should be driven differentially. The encode input can be driven differentially for ...
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APPLICATIONS INFORMATION Transformer Coupled Circuits Figure 3 shows the analog input being driven transformer with a center-tapped secondary. The center tap is biased with V , setting the A/D input at its opti- CM mal DC level. ...
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LTC2172-14/ LTC2171-14/LTC2170-14 APPLICATIONS INFORMATION Reference The LTC2172-14/LTC2171-14/LTC2170-14 has an internal 1.25V voltage reference. For a 2V input range using the internal reference, connect SENSE to V range using the internal reference, connect SENSE to ground. For a 2V input range ...
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APPLICATIONS INFORMATION The differential encode mode is recommended for sinu- soidal, PECL, or LVDS encode inputs (Figures 12 and 13). The encode inputs are internally biased to 1.2V through 10k equivalent resistance. The encode inputs can be taken above V ...
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LTC2172-14/ LTC2171-14/LTC2170-14 APPLICATIONS INFORMATION Table 1. Maximum Sampling Frequency for All Serialization Modes. Note That These Limits Are for the LTC2172-14. The Sampling Frequency for the Slower Speed Grades Cannot Exceed 40MHz (LTC2171-14) or 25MHz (LTC2170-14). SERIALIZATION MODE 2-Lane 16-Bit ...
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APPLICATIONS INFORMATION applied—an exclusive-OR operation is applied between the LSB and all other bits. The FR and DCO outputs are not affected. The output randomizer is enabled by serially programming mode control register A1. Digital Output Test Pattern To allow ...
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LTC2172-14/ LTC2171-14/LTC2170-14 APPLICATIONS INFORMATION The fi rst bit of the 16-bit input word is the R/W bit. The next seven bits are the address of the register (A6:A0). The fi nal eight bits are the register data (D7:D0). If the ...
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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 ...
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LTC2172-14/ LTC2171-14/LTC2170-14 APPLICATIONS INFORMATION GROUNDING AND BYPASSING The LTC2172-14/LTC2171-14/LTC2170-14 requires a printed circuit board with a clean unbroken ground plane. A multilayer board with an internal ground plane in the fi rst layer beneath the ADC is recommended. Layout for ...
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TYPICAL APPLICATIONS Silkscreen Top Inner Layer 2 GND LTC2172-14/ LTC2171-14/LTC2170-14 Top Side Inner Layer 3 21721014fa 29 ...
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LTC2172-14/ LTC2171-14/LTC2170-14 TYPICAL APPLICATIONS Inner Layer 4 Bottom Side 30 Inner Layer 5 Power Silkscreen Bottom 21721014fa ...
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TYPICAL APPLICATIONS C17 1μF A IN1 C29 A IN1 0.1μF A IN2 A IN2 C1 C30 C2 2.2μF 0.1μF 0.1μF C3 0.1μF A IN3 A IN3 C59 0.1μF A IN4 A IN4 LTC2171-14/LTC2170-14 LTC2172 Schematic SENSE C4 R14 1μF 1k ...
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LTC2172-14/ LTC2171-14/LTC2170-14 PACKAGE DESCRIPTION 7.50 ±0.05 6.10 ±0.05 5.50 REF (2 SIDES) 6.45 ±0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 7.00 ± 0.10 (2 SIDES) PIN 1 TOP MARK (SEE NOTE ...
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... Revised Descriptions and Comments in the Related Parts section 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. ...
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... Dual Matched 2nd Order Lowpass Filters with Differential Drivers, Pin-Programmable Gain, 6mm × 3mm DFN-22 Integrated High Speed ADC, Passive Filters and Fixed Gain Differential Amplifi ers www.linear.com ● 21721014fa LT 0310 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2010 ...