LTC2326-16 16-Bit, 250ksps, 10.24V True Bipolar, Pseudo-Differential Input ADC with 93.5dB SNR Fea T Descrip T n 250ksps Throughput Rate The LTC 2326-16 is a low noise, high speed 16-bit suc- n 1.5LSB INL (Max) cessive approximation register (SAR) ADC with pseudo- n Guaranteed 16-Bit No Missing Codes differential inputs. Operating from a single 5V supply, the n Pseudo-Differential Inputs LTC2326-16 has a 10.24V true bipolar input range, making n True Bipolar Input Ranges 6.25V, 10.24V, 12.5V it ideal for high voltage applications which require a wide n 93.5dB SNR (Typ) at f = 2kHz dynamic range. The LTC2326-16 achieves 1.5LSB INL IN n 111dB THD (Typ) at f = 2kHz maximum, no missing codes at 16 bits with 93.5dB SNR. IN n Guaranteed Operation to 125C The LTC2326-16 has an onboard single-shot capable n Single 5V Supply reference buffer and low drift (20ppm/C max) 2.048V n Low Drift (20ppm/C Max) 2.048V Internal Reference temperature compensated reference. The LTC2326-16 n Onboard Single-Shot Capable Reference Buffer also has a high speed SPI-compatible serial interface that n No Pipeline Delay, No Cycle Latency supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring n 1.8V to 5V I/O Voltages a daisy-chain mode. The fast 250ksps throughput with n SPI-Compatible Serial I/O with Daisy-Chain Mode no cycle latency makes the LTC2326-16 ideally suited n Internal Conversion Clock for a wide variety of high speed applications. An internal n Power Dissipation 28mW (Typ) oscillator sets the conversion time, easing external timing n 16-Lead MSOP Package considerations. The LTC2326-16 dissipates only 28mW and automatically naps between conversions, leading to a T reduced power dissipation that scales with the sampling n Programmable Logic Controllers rate. A sleep mode is also provided to reduce the power n Industrial Process Control consumption of the LTC2326-16 to 300W for further n High Speed Data Acquisition power savings during inactive periods. n Portable or Compact Instrumentation 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 n ATE property of their respective owners. Protected by U.S. Patents, including 7705765, 7961132. Typical a T 32k Point FFT f = 250ksps, S f = 2kHz IN 0 5V 1.8V TO 5V SNR = 93.5dB 20 THD = 113dB SINAD = 93.4dB 10F 2.2F 0.1F 40 SFDR = 117dB +10.24V 60 + V V OV DD DDLBYP DD CHAIN 10.24V + 80 LT 1468 IN RDL/SDI SDO 100 LTC2326-16 SCK IN BUSY 120 SAMPLE CLOCK CNV REF REFBUF REFIN GND 140 232616 TA01a 160 100nF 47F 180 0 25 50 75 100 125 FREQUENCY (kHz) 232616 TA01b 232616f 1 For more information www.linear.com/LTC2326-16 AMPLITUDE (dBFS) ion pplica ions pplica ion uresLTC2326-16 a Te Maxi Mu M r a T p c F T (Notes 1, 2) Supply Voltage (V ) ..................................................6V DD TOP VIEW Supply Voltage (OV ) ................................................6V DD V 1 16 GND DDLBYP Supply Bypass Voltage (V ) ...........................3.2V DDLBYP V 2 15 OV DD DD GND 3 14 SDO Analog Input Voltage + IN 4 13 SCK + IN 5 12 RDL/SDI IN , IN ..............................................16.5V to 16.5V GND 6 11 BUSY REFBUF 7 10 CHAIN REFBUF ...................................................................6V REFIN 8 9 CNV REFIN ..................................................................2.8V MS PACKAGE 16-LEAD PLASTIC MSOP Digital Input Voltage T = 150C, = 110C/W JMAX JA (Note 3) ........................... (GND 0.3V) to (OV + 0.3V) DD Digital Output Voltage (Note 3) ........................... (GND 0.3V) to (OV + 0.3V) DD Power Dissipation .............................................. 500mW Operating Temperature Range LTC2326C ................................................ 0C to 70C LTC2326I .............................................40C to 85C LTC2326H .......................................... 40C to 125C Storage Temperature Range .................. 65C to 150C o r D i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2326CMS-16 PBF LTC2326CMS-16 TRPBF 232616 16-Lead Plastic MSOP 0C to 70C LTC2326IMS-16 PBF LTC2326IMS-16 TRPBF 232616 16-Lead Plastic MSOP 40C to 85C LTC2326HMS-16 PBF LTC2326HMS-16 TRPBF 232616 16-Lead Plastic MSOP 40C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on nonstandard lead based finish parts. For more information on lead free part marking, go to: