LTC2366 Linear Technology, LTC2366 Datasheet
LTC2366
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LTC2366 Summary of contents
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... These devices are available in tiny 6- and 8-lead TSOT-23 packages. The serial interface, tiny TSOT-23 package and extremely high sample rate-to-power ratio make the LTC2365/LTC2366 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 ...
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... LTCXK LTCXK LTCXK LTDCB LTDCB LTDCB LTDCC LTDCC LTDCC http://www.linear.com/leadfree/ http://www.linear.com/tapeandreel/ LTC2365C/LTC2366C ............................... 0°C to 70°C LTC2365I/LTC2366I .............................. –40°C to 85°C LTC2365H/LTC2366H (Note 13) ......... –40°C to 125°C TOP VIEW GND 2 5 SDO SCK IN S6 PACKAGE 6-LEAD PLASTIC TSOT- 150° ...
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... A CONDITIONS = 1MHz 1MHz 1MHz 1MHz 0.97MHz 1MHz for LTC2366 IN1 IN2 f = 97kHz 100kHz for LTC2365 IN1 IN2 At 3dB At 0.1dB SINAD ≥ 68dB LTC2365/LTC2366 LTC2365 LTC2366 MIN TYP MAX ...
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... Supply Current, Static Mode DD Operational Mode, LTC2366 Operational Mode, LTC2365 Sleep Mode Sleep Mode P Power Dissipation, Static Mode D Operational Mode, LTC2366 Operational Mode, LTC2365 Sleep Mode Sleep Mode 4 www.DataSheet.in l The denotes the specifi cations which apply over the full = 25°C. (Note 4) ...
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... SMPL SMPL(MAX) SCK Note 11: The time required for the output to cross the V Note 12: Guaranteed by design, not subject to test. Note 13: High temperatures degrade operating lifetimes. Operating lifetime is derated at temperatures greater than 105°C. LTC2365/LTC2366 LTC2365 LTC2366 MIN TYP MAX MIN TYP MAX l 1 ...
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... LTC2365/LTC2366 TYPICAL PERFORMANCE CHARACTERISTICS Integral Nonlinearity vs Output Code 1 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 1024 2048 OUTPUT CODE Histogram for 16384 Conversions 10000 8000 6000 4000 2000 0 2045 2046 2047 2048 CODE THD vs Input Frequency – 10Ω 1Msps SMPL – ...
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... IN –68 –70 –72 – –76 –78 1500 1000 INPUT RESISTANCE (Ω) 23656 G16 LTC2365/LTC2366 T = 25° (LTC2366, Note REF Integral and Differential Nonlinearity vs Supply Voltage 1.0 0.8 MAX INL 0.6 0.4 0.2 0 MIN INL –0.2 –0.4 MIN DNL –0.6 –0.8 –1.0 ...
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... SCK FREQUENCY (MHz) 23656 G19 = 3.6V DD MAX DNL MIN DNL –10 1.2 1.8 2.4 3.0 3.6 REFERENCE VOLTAGE (V) 23656 G22 T = 25° REF (LTC2365/LTC2366, Note 4) Integral and Differential Nonlinearity vs Reference Voltage (TS8 Package) 1.0 LTC2365 3.6V DD 0.8 0.6 MAX DNL 0.4 0.2 MAX INL = 3V 0 –0.2 –0.4 MIN INL –0.6 = 2.35V DD – ...
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... PIN FUNCTIONS LTC2365/LTC2366 (S6 Package) V (Pin 1): Positive Supply. The V DD 3.6V. V also defi nes the input span of the ADC Bypass to GND and to a solid ground plane with a DD 10μF ceramic capacitor (or 10μF tantalum in parallel with 0.1μF ceramic). GND (Pin 2): Ground. The GND pin must be tied directly to a solid ground plane ...
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... LTC2365/LTC2366 BLOCK DIAGRAM ANALOG INPUT RANGE 4.7μF TIMING DIAGRAMS 10 www.DataSheet.in 10μ 12-BIT ADC REF S & H – V REF 2 + GND 3 TS8 PACKAGE t 8 SCK 1.6V SDO Figure 1. SDO Into Hi-Z State After SCK Falling Edge t 7 SCK 1. SDO V IL Figure 2. SDO Data Valid Hold Time After SCK Falling Edge ...
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... DC PERFORMANCE The noise of an ADC can be evaluated in two ways: signal- to-noise ratio (SNR) in the frequency domain and histogram in the time domain. The LTC2365/LTC2366 excel in both. Figures 5 and 6 demonstrate that the LTC2365/LTC2366 have an SNR of over 72dB. The noise in the time domain histogram is the transition noise associated with a 12-bit resolution ADC which can be measured with a fi ...
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... The out-of-band harmonics alias into the frequency band between DC and half the sampling frequency. THD is expressed as: THD = 20log where V frequency and V second through nth harmonics. THD versus Input Fre- quency is shown in Figure 8. The LTC2366 has excellent distortion performance up to the Nyquist frequency and beyond. 11.83 11. ...
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... If the two input sine waves are equal in magnitude, the value (in decibels) of the 2nd order IMD products can be expressed by the following formula: Amplitude at (f IMD(f ± 20log a b The LTC2365/LTC2366 have good IMD as shown in Figure 9a and Figure 9b respectively 1Msps SMPL – ...
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... The LTC2365/LTC2366 use a successive approximation algorithm and internal sample-and-hold circuit to convert an analog signal to a 12-bit serial output. Both devices operate from a single 2.35V to 3.6V supply. The LTC2366 samples at a rate of 3Msps with a 48MHz clock while the LTC2365 samples at a rate of 1Msps with a 16MHz clock. ...
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... SDO Z Figure 12. LTC2365/LTC2366 Serial Interface Timing Diagram for 16 SCK Cycles www.DataSheet.in Serial Data Output (SDO) The SDO output remains in the high impedance state while CS is high. The falling edge of CS starts the conversion and enables SDO. The A/D conversion result is shifted out on the SDO pin as a serial data stream with the MSB fi ...
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... The device can also be put into sleep mode for power savings during inactive periods. To force the LTC2365/LTC2366 into sleep mode, the user can inter- rupt the conversion process by bringing CS high between the 2nd and 10th falling edges of SCK (see Figures 13 and 14) ...
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... ADC can continuously acquire an input signal and perform conversions as described in the SERIAL INTERFACE section (see Figure 15). The wake-up time is 333ns for the LTC2366 with a 48MHz SCK and 1μs for the LTC2365 with a 16MHz SCK. The sample-and-hold is in hold mode while the device is in sleep mode ...
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... If slower op amps are used, more time for settling can be provided by increas- ing the time between conversions. The best choice for an op amp to drive the LTC2365/LTC2366 will depend on the application. Generally, applications fall into two categories: AC applications where dynamic specifi cations are most critical and time domain applications where DC accuracy and settling time are most critical ...
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... Input Filtering and Source Impedance The noise and the distortion of the input amplifi er and other circuitry must be considered since they will add to the , 500μV offset LTC2365/LTC2366 noise and distortion. The small-signal VOL bandwidth of the sample-and-hold circuit is 50MHz. Any = 1, noise or distortion products that are present at the analog V inputs will be summed over this entire bandwidth ...
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... LTC2365/LTC2366 APPLICATIONS INFORMATION Reference Input On the TS8 package of the LTC2365/LTC2366, the voltage on the V pin defi nes the full-scale range of the ADC. The REF reference voltage can range from V Input Range The analog input of the LTC2365/LTC2366 is driven single- ended with respect to GND from a single supply. The input ...
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... Figure 20 shows the recommended system ground con- and V pins as shown in the nections. All analog circuitry grounds should be terminated REF at the LTC2365/LTC2366. The ground return from the LTC2365/LTC2366 to the power supply should be low impedance for noise free operation. Digital circuitry grounds must be connected to the digital supply common. and ...
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... LTC2365/LTC2366 PACKAGE DESCRIPTION 0.62 MAX 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 22 www.DataSheet.in S6 Package 6-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1636) 0.95 REF 1.22 REF 1.50 – 1.75 2.80 BSC 1 ...
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... JEDEC PACKAGE REFERENCE IS MO-193 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. LTC2365/LTC2366 2.90 BSC (NOTE 4) PIN ONE ID 0.22 – ...
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... Supply, 2.2mW, SSOP-16 Package, Pin Compatible to LTC1863, LTC1867L 5V Supply, 1 and 2 Channel, 4.3mW, MSOP Package 5V Supply, 6.5mW, SSOP-16 Package, Pin Compatible to LTC1863, LTC1867L 3V Supply, 2.2mW, SSOP-16 Package, Pin Compatible to LTC1863L, LTC1867 3.3V Supply, Differential Input, 18mW, MSOP Package 3V Supply, Pin- and Software-Compatible to LTC2365/LTC2366 ™ I DAC ±1LSB INL/DNL, Software Selectable Spans ...