LTC1605 16-Bit, 100ksps, Sampling ADC FEATURES DESCRIPTION n Single 5V Supply The LTC 1605 is a 100ksps, sampling 16-bit A/D converter n Bipolar Input Range: 10V that draws only 55mW (typical) from a single 5V supply. n Power Dissipation: 55mW Typ This easy-to-use device includes sample-and-hold, preci- n Guaranteed No Missing Codes sion reference, switched capacitor successive approxima- n Sample Rate: 100ksps tion A/D and trimmed internal clock. n Integral Nonlinearity: 2.0LSB Max The LTC1605s input range is an industry standard 10V. n Signal-to-Noise Ratio: 86dB Typ Maximum DC specs include 2.0LSB INL and 16-bits no n Operates with Internal or External Reference missing codes over temperature. An external reference can n Internal Synchronized Clock be used if greater accuracy over temperature is needed. n Improved 2nd Source to ADS7805 and AD976 n The ADC has a microprocessor compatible, 16-bit or two- 28-Lead SSOP and SW Packages byte parallel output port. A convert start input and a data ready signal (BUSY) ease connections to FIFOs, DSPs and APPLICATIONS microprocessors. n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Industrial Process Control Technology Corporation. All other trademarks are the property of their respective owners. n Multiplexed Data Acquisition Systems n High Speed Data Acquisition for PCs n Digital Signal Processing TYPICAL APPLICATION Typical INL Curve Low Power, 100kHz, 16-Bit Sampling ADC on 5V Supply 5V 2.0 10F 0.1F 1.5 28 27 1.0 V V DIG ANA 6 TO 13 0.5 15 TO 22 16-BIT 200 20k20k V IN 10V 1 16-BIT OR 2 BYTE 0 D15 TO D0 INPUT SAMPLING ADC PARALLEL BUS 0.5 33.2k 4k 10k 1.0 CAP 4 1.5 26 BUSY 2.2F 2.0 BUFFER CS 25 DIGITAL CONTROL 0 16384 32768 49152 65535 CONTROL LOGIC AND 4k REF R/C CODE 3 24 SIGNALS TIMING REFERENCE 1605 TA02 BYTE 23 2.2F AGND1 AGND2 DGND 1605 TA01 2 5 14 1605fd 1 For more information www.linear.com/LTC1605 INL (LSBs)LTC1605 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2) TOP VIEW V ..........................................................................7V ANA V 1 28 V IN DIG V to V ............................................................0.3V DIG ANA AGND1 2 27 V ANA V ...........................................................................7V DIG REF 3 26 BUSY Ground Voltage Difference CAP 4 25 CS DGND, AGND1 and AGND2 ................................0.3V AGND2 5 24 R/C Analog Inputs (Note 3) D15 (MSB) 6 23 BYTE V .....................................................................25V IN D14 7 22 D0 CAP ............................. V + 0.3V to AGND2 0.3V ANA D13 8 21 D1 REF ....................................Indefinite Short to AGND2 D12 9 20 D2 .......................................... Momentary Short to V D11 10 19 D3 ANA Digital Input Voltage (Note 4) ..........DGND 0.3V to 10V D10 11 18 D4 D9 12 17 D5 Digital Output Voltage ........ V 0.3V to V + 0.3V DGND DIG D8 13 16 D6 Power Dissipation .............................................. 500mW DGND 14 15 D7 Operating Ambient Temperature Range LTC1605C ................................................ 0C to 70C OBSOLETE PACKAGE G PACKAGE SW PACKAGE N PACKAGE 28-LEAD PLASTIC SSOP 28-LEAD PLASTIC SO WIDE LTC1605I .............................................40C to 85C 28-LEAD PDIP Storage Temperature Range .................. 65C to 150C T = 125C, = 95C/W (G) JMAX JA T = 125C, = 130C/W (N) JMAX JA Lead Temperature (Soldering, 10 sec) ...................300C T = 125C, = 130C/W (SW) JMAX JA EXPOSED PAD (PIN ) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LTC1605ACG PBF LTC1605ACG TRPBF 1605ACG 28-Lead Plastic SSOP 0C to 70C LTC1605AIG PBF LTC1605AIG TRPBF 1605AIG 28-Lead Plastic SSOP 40C to 85C LTC1605CG PBF LTC1605CG TRPBF 1605CG 28-Lead Plastic SSOP 0C to 70C LTC1605IG PBF LTC1605IG TRPBF 1605IG 28-Lead Plastic SSOP 40C to 85C LTC1605ACSW PBF LTC1605ACSW TRPBF 1605ACSW 28-Lead Plastic SO Wide 0C to 70C LTC1605AISW PBF LTC1605AISW TRPBF 1605AISW 28-Lead Plastic SO Wide 40C to 85C LTC1605CSW PBF LTC1605CSW TRPBF 1605CSW 28-Lead Plastic SO Wide 0C to 70C LTC1605ISW PBF LTC1605ISW TRPBF 1605ISW 28-Lead Plastic SO Wide 40C to 85C OBSOLETE PACKAGE LTC1605CN PBF LTC1605CN TRPBF 1605CN 28-Lead PDIP 0C to 70C LTC1605IN PBF LTC1605IN TRPBF 1605IN 28-Lead PDIP 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: