DatasheetsPDF.com

LTC1411 Dataheets PDF



Part Number LTC1411
Manufacturers Linear
Logo Linear
Description Single Supply 14-Bit 2.5Msps ADC
Datasheet LTC1411 DatasheetLTC1411 Datasheet (PDF)

W U FEATURES s Sample Rate: 2.5Msps s 80dB S/(N + D) and 90dB THD at 100kHz fIN s Single 5V Operation s No Pipeline Delay s Programmable Input Ranges s Low Power Dissipation: 195mW (Typ) s True Differential Inputs Reject Common Mode Noise s Out-of-Range Indicator s Internal or External Reference s Sleep (1µA) and Nap (2mA) Shutdown Modes s 36-Pin SSOP Package U APPLICATIO S s Telecommunications s High Speed Data Acquisition s Digital Signal Processing s Multiplexed Data Acquisition Systems s Sp.

  LTC1411   LTC1411



Document
W U FEATURES s Sample Rate: 2.5Msps s 80dB S/(N + D) and 90dB THD at 100kHz fIN s Single 5V Operation s No Pipeline Delay s Programmable Input Ranges s Low Power Dissipation: 195mW (Typ) s True Differential Inputs Reject Common Mode Noise s Out-of-Range Indicator s Internal or External Reference s Sleep (1µA) and Nap (2mA) Shutdown Modes s 36-Pin SSOP Package U APPLICATIO S s Telecommunications s High Speed Data Acquisition s Digital Signal Processing s Multiplexed Data Acquisition Systems s Spectrum Analysis s Imaging Systems , LTC and LT are registered trademarks of Linear Technology Corporation. LTC1411 Single Supply 14-Bit 2.5Msps ADC DESCRIPTIO The LTC ®1411 is a 2.5Msps sampling 14-bit A/D converter in a 36-pin SSOP package, which typically dissipates only 195mW from a single 5V supply. This device comes complete with a high bandwidth sample-andhold, a precision reference, programmable input ranges and an internally trimmed clock. The ADC can be powered down with either the Nap or Sleep mode for low power applications. The LTC1411 converts either differential or single-ended inputs and presents data in 2’s complement format. Maximum DC specs include ±2LSB INL and 14-bit no missing code over temperature. Outstanding dynamic performance includes 80dB S/(N + D) and 90dB THD at 100kHz input frequency. The LTC1411 has four programmable input ranges selected 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’s input range. A simple conversion start input and a data ready signal ease connections to FIFOs, DSPs and microprocessors. BLOCK DIAGRA 1 AIN+ 2 AIN– REFOUT 3 REFIN 4 2.5V BANDGAP REFERENCE 5k 5k 2k REFCOM1 5 REFCOM2 6 X1.62/ X1.15 10 30 AVP DVP + 14-BIT – ADC INTERNAL CLOCK 14 OUTPUT DRIVERS CONTROL LOGIC OVDD 29 OGND 28 D13 12 • • • D0 25 BUSY 27 OTR 26 7, 8, 9 AGND AVM SLP NAP PGA0 PGA1 CONVST DGND 11 36 35 34 33 32 31 1411 BD S/(N + D) (dB) EFFECTIVE BITS S/(N + D) and Effective Bits vs Input Frequency 86 14 80 13 74 12 68 11 62 10 56 50 44 38 32 26 20 14 10 100 1000 10000 INPUT FREQUENCY (kHz) 1411 TA02 1411f 1 WU U U WW W LTC1411 ABSOLUTE AXI U RATI GS AVP = DVP = OVDD = VDD (Notes 1, 2) Supply Voltage (VDD) ................................................. 6V Analog Input Voltage (Note 3) ... – 0.3V to (VDD + 0.3V) Digital Input Voltage (Note 4) .................. – 0.3V to 10V Digital Output Voltage ............... – 0.3V to (VDD + 0.3V) Power Dissipation .............................................. 500mW Operating Temperature Range LTC1411C ............................................... 0°C to 70°C LTC1411I ............................................ – 40°C to 85°C Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec).................. 300°C UW U PACKAGE/ORDER I FOR ATIO AIN+ AIN– REFOUT 1 2 3 REFIN 4 REFCOM1 5 REFCOM2 6 AGND1 7 AGND2 8 AGND3 9 AVP 10 AVM 11 D13 (MSB) 12 D12 13 D11 14 D10 15 D9 16 D8 17 D7 18 TOP VIEW 36 SLP 35 NAP 34 PGA0 33 PGA1 32 CONVST 31 DGND 30 DVP 29 OVDD 28 OGND 27 BUSY 26 OTR 25 D0 24 D1 23 D2 22 D3 21 D4 20 D5 19 D6 ORDER PART NUMBER LTC1411CG LTC1411IG G PACKAGE 36-LEAD PLASTIC SSOP TJMAX = 125°C, θJA = 95°C/ W Consult LTC Marketing for parts specified with wider operating temperature ranges. CO VERTER CHARACTERISTICS The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C. (Notes 5, 6) PARAMETER CONDITIONS MIN TYP MAX Resolution (No Missing Codes) Integral Linearity Error Offset Error Full-Scale Error Full-Scale Tempco (Note 7) (Note 8) External Reference = 2.5V IOUT(REF) = 0 q 14 q q ±2 ±16 ±24 ± 60 ±15 UNITS Bits LSB LSB LSB LSB ppm/°C DY A IC ACCURACY TA = 25°C (Note 5) SYMBOL PARAMETER CONDITIONS S/(N + D) Signal-to-Noise Plus Distortion Ratio 100kHz Input Signal 500kHz Input Signal THD Total Harmonic Distortion 100kHz Input Signal, Up to 5th Harmonic 500kHz Input Signal, Up to 5th Harmonic Peak Harmonic or Spurious Noise 100kHz Input Signal 500kHz Input Signal Full Linear Bandwidth Transition Noise S/(N + D) ≥ 74dB 2 MIN TYP MAX UNITS 80.0 dB 77.5 dB – 90 dB – 82 dB 90 dB 82 dB 1.0 MHz 0.66 LSBRMS 1411f LTC1411 UW UU UU A ALOG I PUT TA = 25°C (Note 5) SYMBOL PARAMETER CONDITIONS VIN Analog Input Range (Note 9) Common Mode Input Range (AIN+) – (AIN–), PGA0 = PGA1 = 5V (AIN+) – (AIN–), PGA0 = 5V, PGA1 = 0V (AIN+) – (AIN–), PGA0 = 0V, PGA1 = 5V (AIN+) – (AIN–), PGA0 = PGA1 = 0V AIN+ or AIN– CIN Analog Input Capacitance Between Conversions (Sample Mode) During Conversions (Hold Mode) tACQ Sample-and-Hold Acquisition Time tAP Sample-and-Hold Aperture Delay Time tjitter CMRR Sample-and-Hold Aperture Delay Time Jitter Analog Input Common Mode Rejection Ratio 0V < (AIN– = AIN+) < VDD Input Leak.


LT1942 LTC1411 LTC1669


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)