LTC2362 Linear Technology, LTC2362 Datasheet
LTC2362
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LTC2362 Summary of contents
Page 1
... TSOT-23 packages. The serial interface, tiny TSOT-23 package and extremely high sample rate-to-power ratio make the LTC2360/ LTC2361/LTC2362 ideal for compact, low power, high speed systems. The high impedance single-ended analog input and the ability to operate with reduced spans (down to 1.4V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages ...
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... For more information on tape and reel specifi cations, go to: 2 (Notes 1, 2) Operating Temperature Range LTC2360C/LTC2361C/LTC2362C .............. 0°C to 70°C + 0.3V) LTC2360I/LTC2361I/LTC2362I .............. –40°C to 85° 0.3V) LTC2360H/LTC2361H/LTC2362H (Note 12) .. –40°C to 125°C DD Storage Temperature Range ................... –65°C to 150°C + 0.3V) DD Lead Temperature (Soldering, 10 sec) .................. 300°C 8 CONV 7 SCK 6 SDO ...
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... LTC2360/LTC2361 100kHz for LTC2362 49kHz for LTC2360/LTC2361 100kHz for LTC2362 49kHz for LTC2360/LTC2361 100kHz for LTC2362 97kHz 100kHz for LTC2362 IN1 IN2 f = 47kHz 49kHz for LTC2360/LTC2361 IN1 IN2 at 3dB at 0.1dB SINAD ≥ 68dB ...
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... Operational Mode, LTC2362 Operational Mode, LTC2361 Operational Mode, LTC2360 Sleep Mode Sleep Mode Sleep Mode P Power Dissipation D Operational Mode, LTC2362 Operational Mode, LTC2361 Operational Mode, LTC2360 Sleep Mode Sleep Mode Sleep Mode 4 l The denotes the specifi cations which apply over the = 25° ...
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... Note 10: The time required for the output to cross the V SMPL(MAX) Note 11: Guaranteed by design, not subject to test. Note 12: High temperatures degrade operating lifetimes. Operating lifetime is derated at temperatures greater than 105°C. LTC2361 LTC2362 MAX MIN TYP MAX MIN TYP 250 ...
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... LTC2360/LTC2361/LTC2362 TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity vs Output Code 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 0 512 1024 1536 2048 2560 3072 3584 4096 OUTPUT CODE 236012 G01 Histogram for 16384 Conversions 10000 8000 6000 4000 2000 0 2045 2046 2047 2048 ...
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... G13 SINAD vs Input Frequency 3. 3. 2.35V 100 1000 INPUT FREQUENCY (kHz) 2306012 G16 LTC2360/LTC2361/LTC2362 T = 25° Differential Nonlinearity vs Output Code 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1 0 512 1024 1536 2048 2560 3072 3584 ...
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... V = 2.35V DD –79 – 3. –87 – 100 1000 INPUT FREQUENCY (kHz 25° (LTC2362, Note REF Integral and Differential Nonlinearity vs Reference Voltage (TS8 Package) 1 0.8 0.6 MAX DNL 0.4 0.2 0 MAX INL –0.2 –0.4 –0.6 –0.8 –1 4096 0.8 1.2 1 ...
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... CONV (Pin 6): Convert Input. This active high signal starts a conversion on the rising edge. The device automatically powers down after conversion. A logic low on this input enables the SDO pin, allowing the data to be shifted out. LTC2360/LTC2361/LTC2362 TS8 Package range is 2.35V to V (Pin 1): Positive Supply. The V ...
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... LTC2360/LTC2361/LTC2362 BLOCK DIAGRAM ANALOG A INPUT 4 RANGE REF V REF 2 2.2μF GND 3 TS8 PACKAGE TIMING DIAGRAMS t 8 CONV 1.6V SDO Figure 1. SDO Into Hi-Z State After CONV Rising Edge Figure 3. SDO Data Valid Acess Time After SCK Falling Edge 10 2.2μ AND H 12-BIT ADC ...
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... By applying a low distortion sine wave and analyzing the digital output using an FFT algorithm, the ADCs’ spectral content can be examined for frequencies outside the fundamental. Figures 5 and 6 show typical LTC2361 and LTC2362 FFT plots respectively. 10000 V ...
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... DC and half the sampling frequency. THD is expressed as: THD = 20log where V is the RMS amplitude of the fundamental 1 frequency and V second through nth harmonics. THD vs. Input Frequency is shown in Figure 8. The LTC2362 has excellent distortion performance up to the Nyquist frequency and beyond. 12 –67 –71 11.67 –75 –79 11.34 – ...
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... SINAD has dropped to 68dB (11 effective bits). The LTC2362 has been designed to optimize input bandwidth, allowing the ADC to undersample input signals with frequencies above the converter’s Nyquist frequency. The noise fl oor stays very low at high frequencies; SINAD becomes dominated ...
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... RECOMMENDED HIGH OR LOW SDO *AFTER COMPLETING THE DATA TRANSFER, IF FURTHER SCK CLOCKS ARE APPLIED WITH CONV LOW, THE ADC WILL OUTPUT ZEROS INDEFINITELY Figure 10. LTC2360/LTC2361/LTC2362 Serial Interface Timing Diagram 14 Data Transfer A rising CONV edge starts a conversion and disables SDO. After the conversion, the ADC automatically goes into sleep mode, drawing only leakage current ...
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... APPLICATIONS INFORMATION ACHIEVING MICROPOWER PERFORMANCE With typical operating currents of 0.5mA, 0.75mA and 1.1mA for the LTC2360/LTC2361/LTC2362 and automati- cally entering sleep mode right after a conversion, these devices achieve extremely low power consumption over a wide range of sample rates (see Figure 11). The sleep mode allows the supply current to drop with reduced sample rate ...
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... ADC going into track mode. During the conversion, the analog input draws only a small leakage current. If the source impedance of the driving circuit is low, then the input of the LTC2360/LTC2361/LTC2362 can be driven directly. As source impedance increases, so will acquisi- tion time. For minimum acquisition time with high source impedance, a buffer amplifi ...
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... On the TS8 package of the LTC2360/LTC2361/LTC2362, the voltage on the V of the ADC. The reference voltage can range from V down to 1.4V. Input Range The analog input of the LTC2360/LTC2361/LTC2362 is driven single-ended with respect to GND from a single supply. The input may swing ground IN and to V ...
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... Figure 16 shows the recommended system ground con- nections. All analog circuitry grounds should be terminated at the LTC2360/LTC2361/LTC2362. The ground return from the LTC2360/LTC2361/LTC2362 to the power supply should be low impedance for noise free operation. Digital circuitry grounds must be connected to the digital supply common. ...
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... 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. LTC2360/LTC2361/LTC2362 S6 Package 6-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1636) ...
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... LT1790-2.5 Micropower Series Reference in SOT-23 LT6660 Ultra-Tiny Micropower Series Reference SoftSpan is a trademark of Linear Technology Corporation. 20 Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 FAX: (408) 434-0507 ● Recommended AC Test Circuitry for the LTC2362 + + 4.7μF 2.2μ 50Ω ...