LTC2411/LTC2411-1 24-Bit No Latency ADC with Differential Input and Reference in MSOP FEATURES DESCRIPTION n 24-Bit ADC in an MS10 Package The LTC 2411/LTC2411-1 are 2.7V to 5.5V micropower n Low Supply Current (200A in Conversion Mode 24-bit differential analog-to-digital converters with and 4A in Autosleep Mode) an integrated oscillator, 2ppm INL and 0.29ppm RMS n Differential Input and Differential Reference with noise. They use delta-sigma technology and provide single GND to V Common Mode Range cycle settling time for multiplexed applications. Through CC n 2ppm INL, No Missing Codes a single pin, the LTC2411 can be configured for better n 4ppm Full-Scale Error and 1ppm Offset than 110dB differential mode rejection at 50Hz or 60Hz n 0.29ppm Noise 2%, and the LTC2411-1 can provide better than 87dB n No Latency: Digital Filter Settles in a Single Cycle. input differential mode rejection over the range of 49Hz Each Conversion Is Accurate, Even After an to 61.2Hz, or they can be driven by an external oscillator Input Step for a user-defined rejection frequency. The LTC2411 and n Single Supply 2.7V to 5.5V Operation LTC2411-1 are identical when driven by an external oscil- n Internal OscillatorNo External Components lator. The internal oscillator requires no external frequency Required setting components. n 110dB Min, Pin Selectable 50Hz/60Hz Notch Filter The converters accept any external differential reference (LTC2411) voltage from 0.1V to V for flexible ratiometric and re- CC n Simultaneous 50Hz/60Hz Rejection (LTC2411-1) mote sensing measurement configurations. The full-scale differential input range is from 0.5V to 0.5V . The REF REF APPLICATIONS reference common mode voltage, V , and the input REFCM common mode voltage, V , may be independently set INCM n Direct Sensor Digitizer anywhere within the GND to V range of the LTC2411/ CC n Weight Scales LTC2411-1. The DC common mode input rejection is n Direct Temperature Measurement better than 140dB. n Gas Analyzers n The LTC2411/LTC2411-1 communicate through a flexible Strain Gauge Transducers n 3-wire digital interface that is compatible with SPI and Instrumentation n MICROWIRE protocols. Data Acquisition n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and No Industrial Process Control Latency is a trademark of Linear Technology Corporation. All other trademarks are the n 6-Digit DVMs property of their respective owners. TYPICAL APPLICATION 2.7V TO 5.5V V CC 1F V CC 1F = INTERNAL OSC/50Hz REJECTION (LTC2411) 1 10 = EXTERNAL CLOCK SOURCE V F CC O = INTERNAL OSC/60Hz REJECTION (LTC2411) 1 LTC2411/ = SIMULTANEOUS 50Hz/60Hz REJECTION (LTC2411-1) 2 + LTC2411-1 REF V 9 SCK CC 2 BRIDGE + 4 REFERENCE 9 + REF 3-WIRE IMPEDANCE IN SCK 8 SDO LTC2411/ VOLTAGE SPI 3 5 100 TO 10k LTC2411-1 IN 0.1V TO V REF INTERFACE CC 7 CS 3-WIRE 3 4 8 REF SPI INTERFACE + GND F ANALOG INPUT RANGE O IN SDO 0.5V TO 0.5V REF REF 5 6 10 7 IN CS 6 2411 TA02 GND 2411 TA01 2411fa 1 For more information www.linear.com/LTC2411LTC2411/LTC2411-1 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2) Supply Voltage (V ) to GND ....................... 0.3V to 7V CC Analog Input Pins Voltage TOP VIEW to GND ......................................0.3V to (V + 0.3V) V 1 10 F CC CC O + REF 2 9 SCK Reference Input Pins Voltage REF 3 8 SDO + IN 4 7 CS to GND ......................................0.3V to (V + 0.3V) CC IN 5 6 GND Digital Input Voltage to GND .........0.3V to (V + 0.3V) CC MS10 PACKAGE 10-LEAD PLASTIC MSOP Digital Output Voltage to GND .......0.3V to (V + 0.3V) CC T = 125C, = 120C/W JMAX JA Operating Temperature Range LTC2411C ................................................ 0C to 70C LTC2411I .............................................40C to 85C Storage Temperature Range .................. 65C to 150C Lead Temperature (Soldering, 10 sec) ...................300C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC2411CMS PBF LTC2411CMS TRPBF LTNS 10-Lead Plastic MSOP 0C to 70C LTC2411IMS PBF LTC2411IMS TRPBF LTNT 10-Lead Plastic MSOP 40C to 85C LTC2411-1CMS PBF LTC2411-1CMS TRPBF LTWV 10-Lead Plastic MSOP 0C to 70C LTC2411-1IMS PBF LTC2411-1IMS TRPBF LTNN 10-Lead Plastic MSOP 40C to 85C Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on nonstandard lead based finish parts. For more information on lead free part marking, go to: