ltc1411 Linear Technology Corporation, ltc1411 Datasheet
ltc1411
Related parts for ltc1411
ltc1411 Summary of contents
Page 1
... Outstanding dynamic performance includes 80dB S/( and 90dB THD at 100kHz input frequency. The LTC1411 has four programmable input ranges se- lected by two digital input pins, PGA0 and PGA1. This provides input spans of 1.8V, 1.27V, 0.9V and 0.64V. An out-of-the-range signal together with the D13 (MSB) will indicate whether a signal is over or under the ADC’ ...
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... Digital Input Voltage (Note 4) .................. – 0.3V to 10V Digital Output Voltage ............... – 0. Power Dissipation .............................................. 500mW Operating Temperature Range LTC1411C ............................................... LTC1411I ............................................ – Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec).................. 300 VERTER CHARACTERISTICS temperature range, otherwise specifications are T ...
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... 4.75V – 200 4.75V 160 4.75V 1.6mA OUT OUT DD CONDITIONS (Note 9) NAP = 0V (Note 11) SLP = 0V NAP = 0V SLP = 0V LTC1411 MIN TYP MAX UNITS 1.8 V 1.27 V 0 100 RMS 62 dB 0.1 ...
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... LTC1411 CHARACTERISTICS range, otherwise specifications are (Notes 5) (See Figures 11a, 11b) A SYMBOL PARAMETER f Maximum Sampling Frequency SAMPLE(MAX) t Conversion Time CONV t Acquisition Time ACQ t SLP to CONVST Wake-Up Time 0 t NAP to CONVST Wake-Up Time 1 t CONVST Low Time 2 t CONVST to BUSY Delay ...
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... TEMPERATURE ( C) 0 –20 –40 –60 –80 –100 –120 –140 0 1 1411 G13 LTC1411 Integral Nonlinearity vs Output Code 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 10000 8192 0 4096 OUTPUT CODE 1411 G05 Supply Current vs Supply Voltage 46 ...
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... LTC1411 W U TYPICAL PERFOR A CE CHARACTERISTICS 4096 Points FFT Plot (1MHz) 0 SINAD = 75dB SFDR = 81dB – 2.5MHz SAMPLE f = 1MHz IN –40 –60 –80 –100 –120 –140 250 500 0 FREQUENCY (kHz CTIO (Pin 1): Positive Analog Input. The ADC converts the ...
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... X1.62 X1. AGND * CAPACITOR IS NEEDED IF REFOUT IS USED TO DRIVE A Table 1. Input Spans for LTC1411 PGA0 NAP (Pin 35): Nap Input. Driving this pin low will put the ADC in the Nap mode and will reduce the supply current to 2mA and the internal reference will remain active. ...
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... IN DYNAMIC PERFORMANCE The LTC1411 has excellent high speed sampling capabil- ity. FFT (Fast Fourier Transform) test techniques are used to test the ADC’s frequency response, distortion and noise at the rated throughput. By applying a low distortion sine ...
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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 where V 1 quency and V second through Nth harmonics. THD vs input frequency is shown in Figure 4. The LTC1411 has good distortion performance up to the Nyquist frequency and beyond. LTC1411 ...
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... If slower op amps are used, more settling time can be provided by increasing the time between conversions. The best choice for an op amp to drive the LTC1411 will depend on the application. Generally applications fall into + – ...
Page 11
... PGA switches. The REFIN pin can be connected to REFOUT directly external reference. Figure 6 shows the reference and buffer structure for the LTC1411. The input to the reference buffer is either REFIN or 1/2 of REFIN depending on the PGA selection. The – ...
Page 12
... Out-of-the-Range Signal (OTR) The LTC1411 has a digital output, OTR, that indicates if an analog input signal is out of range. The OTR remains low when the analog input is within the specified range. Once the analog signal goes to the most negative input (1000 0000 0000 00) or 64LSB above the specified most positive input, OTR will go high ...
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... This device can also talk to 3V digital systems: the digital input pins (CONVST, NAP and SLP) of the LTC1411 recognize inputs. The LTC1411 has a dedicated output supply pin (OV ) that controls the output swings of the digital ...
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... ZERO 000...001 000...000 111...111 111...110 100...001 FS 3.6V 1LSB = = 100...000 16384 16384 –1 2.5V 1 –FS/2 LSB LSB INPUT VOLTAGE (V) Figure 12. LTC1411 Bipolar Transfer Characteristics (2’s Complement CONV t ACQ CONV ACQ 219.7 V FS/2 – ...
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... Plastic SSOP (5.3mm) (Reference LTC DWG # 05-08-1640 – 8 .65 (.0256) BSC .25 – .38 (.010 – .015) LTC1411 12.67 – 12.93* (.499 – .509 7.65 – 7.90 (.301 – .311 1.73 – 1.99 (.068 – ...
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... LTC1411 U TYPICAL APPLICATIO + A IN PROGRAMMABLE RANGE 1 DIFFERENTIAL INPUTS – 0.64V TO 1.8V) 2 REFOUT 3 REFIN REFCOM1 + REFCOM2 + AGND RELATED PARTS PART NUMBER RESOLUTION 16-Bit LTC1608 16 14-Bit LTC1414 14 LTC1419 14 LTC1744 14 12-Bit LTC1420 12 LTC1412 12 LTC1402 12 LTC1405 12 LTC1410 12 LTC1415 12 Linear Technology Corporation 16 1630 McCarthy Blvd ...