LTC2380-24 24-Bit, 1.5Msps/2Msps, Low Power SAR ADC with Integrated Digital Filter FEATURES DESCRIPTION n Guaranteed 24-Bits No Missing Codes The LTC 2380-24 is a low noise, low power, high speed n 0.5ppm INL (Typ) 24-bit successive approximation register (SAR) ADC with n Integrated Digital Filter with Real-Time Averaging an integrated digital averaging filter. Operating from a 2.5V n Low Power: 28mW at 2Msps supply, the LTC2380-24 has a V fully differential input REF n 100dB SNR (Typ) at 1.5Msps range with V ranging from 2.5V to 5.1V. The LTC2380- REF n 145dB Dynamic Range (Typ) at 30.5sps 24 consumes only 28mW and achieves 3.5ppm INL n 117dB THD (Typ) at f = 2kHz maximum and no missing codes at 24 bits. IN n 50Hz/60Hz Rejection The LTC2380-24 has an easy to use integrated digital n Digital Gain Compression (DGC) averaging filter that can average 1 to 65536 conversion n Guaranteed Operation to 85C results real-time, dramatically improving dynamic range n Single 2.5V Supply from 101dB at 1.5Msps to 145dB at 30.5sps. No separate n Fully Differential Input Range Up to 5V programming interface or configuration register is required. n 1.8V to 5V SPI-Compatible Serial I/O with Daisy- The high speed SPI-compatible serial interface supports Chain Mode n 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy- 16-Lead MSOP and 4mm 3mm DFN Packages chain mode. The LTC2380-24 automatically powers down between conversions, reducing power dissipation at lower APPLICATIONS sampling rates. n Seismology L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property n Energy Exploration of their respective owners. Protected by U.S. Patents, including 7705765, 7961132, 8319673, 8810443 and Patents pending. n Medical Imaging n High Speed Data Acquisition n Industrial Process Control n ATE TYPICAL APPLICATION Integral Nonlinearity vs Output Code 3.0 2.5V 1.8V TO 5V 2.0 10F 0.1F 1.0 V OV CHAIN 6800pF DD DD V REF 10 + RDL/SDI IN + SDO 0 0V 3300pF LTC2380-24 SCK V REF BUSY IN 1.0 CNV SAMPLE CLOCK 0V 10 6800pF REF REF/DGC V REF GND REF 2.0 238024 TA01 2.5V TO 5.1V 47F 3.0 (X7R, 1210 SIZE) 8388608 4194304 0 4194304 8388607 OUTPUT CODE 238024 TA01b 238024fa 1 For more information www.linear.com/LTC2380-24 INL ERROR (ppm)LTC2380-24 ABSOLUTE MAXIMUM RATINGS (Notes 1, 2) Supply Voltage (V ) ...............................................2.8V Digital Output Voltage DD Supply Voltage (OV ) ................................................6V (Note 3) .......................... (GND 0.3V) to (OV + 0.3V) DD DD Reference Input (REF) .................................................6V Power Dissipation .............................................. 500mW Analog Input Voltage (Note 3) Operating Temperature Range + IN , IN .............................(GND 0.3V) to (REF + 0.3V) LTC2380C ................................................ 0C to 70C REF/DGC Input (Note 3) ....(GND 0.3V) to (REF + 0.3V) LTC2380I .............................................40C to 85C Digital Input Voltage Storage Temperature Range .................. 65C to 150C (Note 3) .......................... (GND 0.3V) to (OV + 0.3V) DD PIN CONFIGURATION TOP VIEW CHAIN 1 16 GND TOP VIEW V 2 15 OV DD DD CHAIN 1 16 GND GND 3 14 SDO V 2 15 OV DD DD + GND 3 14 SDO IN 4 13 SCK 17 + IN 4 13 SCK GND IN 5 12 RDL/SDI IN 5 12 RDL/SDI GND 6 11 BUSY GND 6 11 BUSY REF 7 10 GND REF 7 10 GND REF/DGC 8 9 CNV REF/DGC 8 9 CNV MS PACKAGE 16-LEAD PLASTIC MSOP DE PACKAGE 16-LEAD (4mm 3mm) PLASTIC DFN T = 150C, = 110C/W JMAX JA T = 150C, = 40C/W JMAX JA EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION (