LTC1605-1/LTC1605-2 Single Supply 16-Bit, 100ksps, Sampling ADCs FeaTuresDescripTion n Sample Rate: 100ksps The LTC®1605-1/LTC1605-2 are 100ksps, sampling n Complete 16-Bit Solution on a Single 5V Supply 16-bit A/D converters that draw only 55mW (typical) from n Unipolar Input Range: 0V to 4V (LTC1605-1) a single 5V supply. These easy-to-use devices include a n Bipolar Input Range: ± 4V (LTC1605-2) sample-and-hold, precision reference, switched capacitor n Power Dissipation: 55mW Typ successive approximation A/D and trimmed internal clock. n Signal-to-Noise Ratio: 86dB Typ The LTC1605-1’s input range is 0V to 4V while the n Operates with Internal or External Reference LTC1605-2’s input range is ±4V. An external reference n Internal Synchronized Clock can be used if greater accuracy over temperature is n 28-Pin SSOP Package needed. The ADC has a microprocessor compatible, 16-bit or two applicaTions byte parallel output port. A convert start input and a data n Industrial Process Control ready signal (BUSY) ease connections to FIFOs, DSPs and n Multiplexed Data Acquisition Systems microprocessors. n High Speed Data Acquisition for PCs L, LTC and LT are registered trademarks of Linear Technology Corporation. n Digital Signal Processing Typical applicaTionLTC1605-1 Low Power, 100kHz, 16-Bit Sampling ADC on 5V Supply 5V 10μF 0.1μF Typical INL Curve 28 27 2.0 VDIG VANA 6 TO 13 1.5 200Ω 15 TO 22 16-BIT 1 V 4k 0V TO 4V IN 16-BIT OR 2 BYTE 1.0 INPUT SAMPLING ADC D15 TO D0 PARALLEL BUS 0.5 33.2k 20k 10k 0 4 CAP INL (LSBs) 2.5V –0.5 BUSY 26 2.2μF BUFFER CS 25 –1.0 CONTROL DIGITAL CONTROL 3 REF 4k 2.5V LOGIC AND R/C 24 –1.5 2.5V REFERENCE TIMING SIGNALS BYTE 23 –2.0 2.2μF 0 16384 32768 49152 65535 AGND1 AGND2 DGND CODE 2 5 14 1605-1/2 TA01 1605-1/2 TA02/G04 160512fa For more information www.linear.com/LTC1605-1 1
