LTC1407-1/LTC1407A-1 Serial 12-Bit/14-Bit, 3Msps Simultaneous Sampling ADCs with Shutdown FEATURES DESCRIPTION n 3Msps Sampling ADC with Two Simultaneous The LTC 1407-1/LTC1407A-1 are 12-bit/14-bit, 3Msps Differential Inputs ADCs with two 1.5Msps simultaneously sampled differ- n 1.5Msps Throughput per Channel ential inputs. The devices draw only 4.7mA from a single n Low Power Dissipation: 14mW (Typ) 3V supply and come in a tiny 10-lead MS package. A sleep n 3V Single Supply Operation shutdown feature lowers power consumption to 10W. n 1.25V Differential Input Range The combination of speed, low power and tiny package n Pin Compatible 0V to 2.5V Input Range Version makes the LTC1407-1/LTC1407A-1 suitable for high speed, (LTC1407/LTC1407A) portable applications. n 2.5V Internal Bandgap Reference with External The LTC1407-1/LTC1407A-1 contain two separate differ- Overdrive ential inputs that are sampled simultaneously on the rising n 3-Wire Serial Interface edge of the CONV signal. These two sampled inputs are n Sleep (10W) Shutdown Mode then converted at a rate of 1.5Msps per channel. n Nap (3mW) Shutdown Mode n The 80dB common mode rejection allows users to eliminate 80dB Common Mode Rejection at 100kHz n ground loops and common mode noise by measuring Tiny 10-Lead MS Package signals differentially from the source. The devices convert 1.25V to 1.25V bipolar inputs differ- APPLICATIONS + + entially. The absolute voltage swing for CH0 , CH0 , CH1 n Telecommunications and CH1 extends from ground to the supply voltage. n Data Acquisition Systems The serial interface sends out the two conversion results in 32 n Uninterrupted Power Supplies clocks for compatibility with standard serial interfaces. n Multiphase Motor Control L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n I & Q Demodulation Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 6084440, 6522187. n Industrial Radio BLOCK DIAGRAM 10F 3V THD, 2nd and 3rd vs Input Frequency for Differential Input Signals 7 V DD LTC1407A-1 44 + CH0 1 + 50 S & H 56 CH0 2 THREE- 62 STATE 3Msps MUX SERIAL SDO 8 68 14-BIT ADC OUTPUT 74 + PORT CH1 4 + THD 3RD 80 S & H 86 CH1 5 10 CONV 92 TIMING V 98 REF LOGIC 2ND 3 9 SCK 104 10F GND 0.1 11020 2.5V 6 REFERENCE FREQUENCY (MHz) 14071 TA01b 11 EXPOSED PAD 1407A1 BD 14071fb 1 14-BIT LATCH 14-BIT LATCH THD, 2ND, 3RD (dB)LTC1407-1/LTC1407A-1 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2) TOP VIEW + CH0 1 10 CONV Supply Voltage (V ) .................................................4V DD CH0 2 9 SCK Analog Input Voltage (Note 3) ..... 0.3V to (V + 0.3V) V 3 11 8 SDO DD REF + CH1 4 7 V DD Digital Input Voltage .................... 0.3V to (V + 0.3V) DD CH1 5 6 GND Digital Output Voltage ................. 0.3V to (V + 0.3V) DD MSE PACKAGE 10-LEAD PLASTIC MSOP Power Dissipation ...............................................100mW T = 125C, = 40C/W JMAX JA Operation Temperature Range EXPOSED PAD IS GND (PIN 11), MUST BE SOLDERED TO PCB LTC1407C-1/LTC1407AC-1 ...................... 0C to 70C LTC1407I-1/LTC1407AI-1 .....................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 LTC1407CMSE-1 PBF LTC1407CMSE-1 TRPBF LTBGT 10-Lead Plastic MSOP 0C to 70C LTC1407IMSE-1 PBF LTC1407IMSE-1 TRPBF LTBGV 10-Lead Plastic MSOP 40C to 85C LTC1407ACMSE-1 PBF LTC1407ACMSE-1 TRPBF LTBGW 10-Lead Plastic MSOP 0C to 70C LTC1407AIMSE-1 PBF LTC1407AIMSE-1 TRPBF LTBGX 10-Lead Plastic MSOP 40C to 85C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based nish parts. For more information on lead free part marking, go to: