LTC2393-16_1 LINER [Linear Technology], LTC2393-16_1 Datasheet
LTC2393-16_1
Related parts for LTC2393-16_1
LTC2393-16_1 Summary of contents
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... DESCRIPTION ® The LTC cessive approximation register (SAR) ADC. Operating from a single 5V supply, the LTC2393-16 supports a large ±4.096V fully differential input range, making it ideal for high performance applications which require maximum dynamic range. The LTC2393-16 achieves ±2LSB INL max, no missing codes at 16-bits and 94.2dB SNR (typ). ...
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... For more information on tape and reel specifications, go to: 2 (Notes 1, 2) Operating Temperature Range LTC2393C ................................................ 0°C to 70°C + 0.3V) LTC2393I.............................................. –40°C to 85°C AVP + 0.3V) LTC2393H .......................................... –40°C to 125°C OVP + 0.3V) Storage Temperature Range ................... –65°C to 150°C OVP 36 VCM 35 GND GND 1 34 CNVST ...
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... IN CONDITIONS f = 20kHz 20kHz 20kHz, First 5 Harmonics (C- and I-Grades 20kHz, First 5 Harmonics (H-Grade 20kHz IN Full-Scale Step LTC2393-16 MIN TYP MAX l –0.05 AVP l –0.05 AVP l –V V REF REF – 0. ...
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... LTC2393-16 INTERNAL REFERENCE CHARACTERISTICS operating temperature range, otherwise specifications are at T PARAMETER V Output Voltage REF V Output Tempco REF V Output Impedance REF External Reference Voltage REFIN Input Impedance V Line Regulation REF VCM Output Voltage DIGITAL INPUTS AND DIGITAL OUTPUTS operating temperature range, otherwise specifications are at T ...
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... Note 10: Guaranteed by design. Note 11: Temperature coefficient is calculated by dividing the maximum change in output voltage by the specified temperature range. 0.5V 50 DELAY DELAY 4V 4V 0.5V 0.5V Figure 1. Voltage Levels for Timing Specifications LTC2393-16 MIN TYP MAX 600 l 385 250 l 15 ...
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... LTC2393-16 TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity vs Output Code 2.0 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0 16384 32768 49152 65536 OUTPUT CODE 239316 G01 DC Histogram (Internal Reference) 2000000 1800000 1600000 1400000 1200000 1000000 800000 600000 400000 200000 0 32764 32766 32768 32770 32772 CODE 239316 G04 ...
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... SINAD 94.0 93.5 93.0 –20 125 –40 –30 –10 INPUT LEVEL (dB 105 45 65 125 239316 G16 LTC2393- 25° 1Msps, unless otherwise noted. A SMPL SNR, SINAD 20kHz IN vs Temperature 95.0 94.5 SNR SINAD 94.0 93.5 93.0 175 200 –55 –35 – TEMPERATURE (° ...
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... LTC2393-16 PIN FUNCTIONS GND (Pins 20, 35, 41, 44, 48, Exposed Pad Pin 49 (QFN Only)): Ground. All GND pins must be con- nected to a solid ground plane. Exposed pad must be soldered directly to the ground plane. AVP (Pins 2, 40, 45, 46, 47): 5V Analog Power Supply. ...
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... CS (Pin 31): Chip Select. When CS and RD are both low, the parallel and serial output bus is enabled also used to gate the external shift clock. RESET (Pin 32): Reset Input. When high the LTC2393-16 is reset, and if this occurs during a conversion, the conver- sion is halted and the data bus is put into Hi-Z mode. ...
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... LTC2393-16 FUNCTIONAL BLOCK DIAGRAM LTC2393- – IN REFIN REFOUT VCM TIMING DIAGRAMS CS CNVST BUSY D[15:0] CS CNVST BUSY SCLK SDOUT 10 AVP DVP OVP 16-BIT SAMPLING ADC 16-BIT 1x BUFFER 4.096V CONTROL LOGIC REFERENCE CNVST REFSENSE PD RESET GND OGND Conversion Timing Using the Parallel Interface ...
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... CDAC output approximates the sampled analog input. The ADC control logic then prepares the 16-bit digital output code for parallel or serial transfer. TRANSFER FUNCTION The LTC2393-16 digitizes the full-scale voltage of 2 • into 2 levels, resulting in an LSB size of 125μV when V = 4.096V. The ideal transfer function for two’ ...
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... An alternative solution using two op amps is shown in Figure 4b. Using two LT1806 op amps, the circuit achieves 94.1dB signal-to-noise ratio (SNR). For a 20kHz input signal, the input of the LTC2393-16 has been bandwidth limited to about 25kHz. ADC REFERENCE A low noise, low temperature drift reference is critical to achieving the full data sheet performance of the ADC ...
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... The REFSENSE pin should be left floating when using the internal reference. External Reference An external reference can be used with the LTC2393-16 when even higher performance is required. The LT1790-4.096 offers 0.05% (max) initial accuracy and 10ppm/°C (max) temperature coefficient. When using an external reference, connect the reference output to the REFIN pin and connect the REFOUT pin to ground ...
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... POR will reinitialize the ADC and it will be ready to start a new conversion. /2). SMPL Nap Mode The LTC2393-16 can be put into the nap mode after a 2 ... V conversion has been completed to reduce the power N consumption between conversions. In this mode some of the circuitry on the device is turned off ...
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... PD = low is applied. In this mode power consumption drops to a typical value of 175μW from 140mW. This mode can be used if the LTC2393-16 is inactive for a long period of time and the user wants to minimize the power dissipation. Recovery from Power Shutdown Mode ...
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... This pin is active in both the parallel and serial modes of operation. Reset When the RESET pin is high, the LTC2393-16 is reset, and if this occurs during a conversion, the conversion is halted and the data bus is put into Hi-Z mode. In reset, requests for new conversions are ignored. Once RESET returns low, the LTC2393-16 is ready to start a new conversion after the acquisition time has been met ...
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... Figure 11. 8-Bit Parallel Interface Using the BYTESWAP Pin Hi-Z Hi-Z CURRENT CONVERSION Figure 9. Read the Parallel Data After the Conversion CONV t 6 Hi-Z PREVIOUS CONVERSION t 17 8-BIT INTERFACE HIGH BYTE LOW BYTE LTC2393-16 239316 F09 Hi-Z 239316 F09 t 18 Hi-Z 239316 F11 t 18 239316f 17 ...
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... SCLK STARTS HIGH D15 D14 D13 X15 X14 X13 LTC2393-16 LTC2393-16 CNVST CNVST SCLK SCLK SDIN SDOUT SDIN ADC X15 X14 X15 X14 X1 X0 SDOUT ...
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... APPLICATIONS INFORMATION RESET CVNST DATA BUS D[15: ACQ Hi-Z Figure 13. RESET Pin Timing LTC2393-16 239316 F13 239316f 19 ...
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... LTC2393-16 APPLICATIONS INFORMATION BOARD LAYOUT To obtain the best performance from the LTC2393-16, a printed circuit board (PCB) is recommended. Layout for the printed circuit board should ensure the digital and analog signal lines are separated as much as possible. In particular, care should be taken not to run any digital clocks or signals alongside analog signals or underneath the ADC ...
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... APPLICATIONS INFORMATION Partial Layer 1 Component Side Partial Top Silkscreen Partial Layer 2 Ground Plane LTC2393-16 239316f 21 ...
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... LTC2393-16 PACKAGE DESCRIPTION 5.15 0.05 5.15 0.05 0.25 0.05 0.50 BSC RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED 7.00 0.10 (4 SIDES) PIN 1 TOP MARK (SEE NOTE 6) NOTE: 1. DRAWING CONFORMS TO JEDEC PACKAGE OUTLINE MO-220 VARIATION (WKKD-2) 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH ...
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... REF 7.15 – 7.25 C0.30 – 0.50 R0.08 – 0.20 GAUGE PLANE 0.25 0° – 7° 0.50 0.09 – 0.20 BSC SECTION A – PIN-1 INDENTIFIER IS A MOLDED INDENTATION, 0.50mm DIAMETER 5. DRAWING IS NOT TO SCALE LTC2393-16 9.00 BSC 7.00 BSC 48 SEE NOTE: 4 7.00 BSC A A 1.35 – 1.45 0.17 – 0.27 0.05 – 0.15 9.00 BSC 1.60 MAX LX48 LQFP 0907 REVØ ...
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... Supply, 1-Channel, 18mW, MSOP-10 Package 5V Supply, Differential Input, 94dB SNR, ±4.096V Input Range, Pin Compatible with the LTC2393-16, LTC2391-16 5V Supply, Differential Input, 94dB SNR, ±4.096V Input Range, Pin Compatible with the LTC2393-16, LTC2392-16 DACs ±1LSB INL, ±1LSB DNL, MSOP-8 Package Output OUT DACs SC70 6-Pin Package, Internal Reference, ± ...