LTC1863 LINER [Linear Technology], LTC1863 Datasheet
LTC1863
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LTC1863 Summary of contents
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... The signal-to-noise ratio (SNR) for the LTC1867 is typically 89dB, with the internal reference. Housed in a compact, narrow 16-pin SSOP package, the LTC1863/LTC1867 can be used in space-sensitive as well as low-power applications. , LTC and LT are registered trademarks of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corp. ...
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... Digital Output Voltage (SDO) ....... – 0. Power Dissipation .............................................. 500mW Operating Temperature Range LTC1863C/LTC1867C/LTC1867AC .......... LTC1863I/LTC1867I/LTC1867AI ........ – Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 VERTER CHARACTERISTICS temperature range, otherwise specifications are at T ...
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... LTC1863/LTC1867/LTC1867A MIN TYP MAX 0-4.096 2.048 32 4 1.5 1.1 DD LTC1863/LTC1867/LTC1867A MIN TYP MAX 2.480 2.500 2.520 15 0.43 6 4.096 denotes the specifications which apply over the LTC1863/LTC1867/LTC1867A MIN TYP MAX 2.4 0.8 2 4.75 4 4.74 0.05 0.10 0.4 – Straight Binary Two’s Complement UNITS MHz UNITS V V ...
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... LTC1867 and between 0000 0000 0000 and 0000 0000 0001 for LTC1863. Bipolar offset is the offset voltage measured from –1/2LSB when output code flickers between 0000 0000 0000 0000 and 1111 1111 1111 1111 for LTC1867, and between 0000 0000 0000 and 1111 1111 1111 for LTC1863 ...
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... FREQUENCY (kHz) 18637 G05 Signal-to-(Noise + Distortion) vs Input Frequency 100 100 INPUT FREQUENCY (kHz) 18637 G08 LTC1863/LTC1867 Histogram for 4096 Conversions 2500 2152 2000 1500 935 1000 579 500 276 122 –4 –3 – ...
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... OUTPUT CODE 6 (LTC1863/LTC1867) Supply Current vs Supply Voltage 1 200ksps SAMPLE 1.4 1.3 1.2 1.1 1.0 4.5 4.75 5.0 5.25 SUPPLY VOLTAGE (V) 18637 G11 Differential Nonlinearity vs Output Code (LTC1863) 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 2048 2560 3072 3584 4096 18637 G13 Supply Current vs Temperature 1 200ksps SAMPLE 1.4 1 ...
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... CH3 SDO LTC1867 4.096V + CH4 SCK SINGLE-ENDED INPUT CH5 CS/CONV CH6 V REF CH7/COM REFCOMP 18637 TC01 LTC1863/LTC1867 5V DIGITAL I/O 2.5V 2.2 F 4.096V 10 F 18637 TCD Load Circuits for Output Float Delay ( Hi-Z ( Hi-Z 18637 TC02 18637f ...
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... CS/CONV U U APPLICATIO S I FOR ATIO Overview The LTC1863/LTC1867 are complete, low power multi- plexed ADCs. They consist of a 12-/16-bit, 200ksps ca- pacitive successive approximation A/D converter, a preci- sion internal reference, a configurable 8-channel analog input multiplexer (MUX) and a serial port for data transfer. ...
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... Table 2. Channel Configuration (When COM = 1, CH7/COM Pin CH6 Is Used as COMMON) CH7/COM – GND ( ) SD OS 18637 AI01 LTC1863/LTC1867 Changing the MUX Assignment “On the Fly” 1st Conversion 2nd Conversion – CH2 CH2 { + CH3 CH3 + CH4 CH4 { + CH5 CH5 ...
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... U APPLICATIO S I FOR ATIO Driving the Analog Inputs The analog inputs of the LTC1863/LTC1867 are easy to drive. Each of the analog inputs can be used as a single- ended input relative to the GND pin (CH0-GND, CH1-GND, etc pairs (CH0 and CH1, CH2 and CH3, CH4 and CH5, CH6 and CH7) for differential inputs ...
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... The out-of-band harmonics alias into the frequency band between DC and half the sampling frequency. THD is 122 expressed as THD 18637 GO3 LTC1863/LTC1867 REF 0 SNR = 88.8dB SINAD = 87.9dB –20 THD = 95dB f = 200ksps SAMPLE –40 INTERNAL REFERENCE – ...
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... The typical acquisition time is 1.1 s, and a throughput sam- pling rate of 200ksps is tested and guaranteed. Automatic Nap Mode R1 The LTC1863/LTC1867 go into automatic nap mode when 6k BANDGAP REFERENCE CS/CONV is held high after the conversion is complete. With a typical operating current of 1.3mA and automatic 150 A nap mode between conversions, the power dissi- pation drops with reduced sample rate ...
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... DD diagrams for two types of CS/CONV pulses. /REFCOMP REF Example 1 (Figure 6) shows the LTC1863/LTC1867 oper- ating in automatic nap mode with CS/CONV signal staying HIGH after the conversion. Automatic nap mode provides power reduction at reduced sample rate. The ADCs can also operate with the CS/CONV signal returning LOW before the conversion ends ...
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... DON'T CARE 111...111 111...110 100...001 100...000 UNIPOLAR 011...111 ZERO 011...110 FS = 4.096 n 000...001 1LSB = FS/2 1LSB = (LTC1863) = 1mV 000...000 1LSB = (LTC1867 – 1LSB INPUT VOLTAGE (V) 1867 F09 Characteristics (Straight Binary) 1867 F07 18637f ...
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... BSC .015 .004 45 .0532 – .0688 (0.38 0.10) (1.35 – 1.75) 0 – 8 TYP .008 – .012 (0.203 – 0.305) TYP LTC1863/LTC1867 .189 – .196* (4.801 – 4.978) .009 (0.229 REF .150 – .157** (3.810 – 3.988 ...
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... LTC1863/LTC1867 RELATED PARTS PART NUMBER DESCRIPTION LTC1417 14-Bit, 400ksps Serial ADC LT1460 Micropower Precision Series Reference LT1468/LT1469 Single/Dual 90MHz, 22V/ s, 16-Bit Accurate Op Amps LTC1609 16-Bit, 200ksps Serial ADC LT1790 Micropower Low Dropout Reference LTC1850/LTC1851 10-Bit/12-Bit, 8-Channel, 1.25Msps ADC LTC1852/LTC1853 10-Bit/12-Bit, 8-Channel, 400ksps ADC ...