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| datasheet.co.kr > datasheet > MAX116 > 2x4-Channel / Simultaneous-Sampling 12-Bit ADCs |
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19-1928; Rev 0; 1/01 KIT ATION EVALU ABLE AVAIL 2x4-Channel, Simultaneous-Sampling 12-Bit ADCs ____________________________Features o Four Simultaneous-Sampling T/H Amplifiers with Two Multiplexed Inputs (Eight Single-Ended Inputs Total) o 2µs Conversion Time per Channel o Throughput: 390ksps (1 Channel) 218ksps (2 Channels) 152ksps (3 Channels) 116ksps (4 Channels) o Input Range: ± 5V (MAX115) ± 2.5V (MAX116) o Fault-Protected Input Multiplexer (±17V) o Internal +2.5V or External Reference Operation o Programmable On-Board Sequencer o High-Speed Parallel DSP Interface o Internal 10MHz Clock ________________General Description The MAX115/MAX116 are high-speed, multichannel, 12-bit data-acquisition systems (DAS) with simultaneous track/holds (T/Hs). These devices contain a 12-bit, 2µs, successive-approximation analog-to-digital converter (ADC), a +2.5V reference, a buffered reference input, and a bank of four simultaneous-sampling T/H amplifiers that preserve the relative phase information of the sampled inputs. The MAX115/MAX116 have two multiplexed inputs for each T/H, allowing a total of eight inputs. In addition, the converter is overvoltage tolerant to ±17V. A fault condition on any channel will not damage the IC. Available input ranges are ±5V (MAX115) and ±2.5V (MAX116). The parallel interface’s data access and bus release timing specifications are compatible with most popular digital signal processors and 16-bit/32-bit microprocessors. The MAX115/MAX116 conversion results can be accessed without resorting to wait-states. MAX115/MAX116 ________________________Applications Multiphase Motor Control Power-Grid Synchronization Power-Factor Monitoring Digital Signal Processing Vibration and Waveform Analysis PART MAX115CAX MAX115EAX MAX116CAX MAX116EAX Ordering Information TEMP. RANGE 0°C to +70°C -40°C to +85°C 0°C to +70°C -40°C to +85°C PIN-PACKAGE 36 SSOP 36 SSOP 36 SSOP 36 SSOP Pin Configuration TOP VIEW CH2B 1 CH2A 2 CH1B 3 CH1A 4 AVDD 5 REFIN 6 REFOUT 7 AGND 8 D11 (MSB) 9 D10 10 D9 11 D8 12 D7 13 D6 14 D5 15 D4 16 DVDD 17 DGND 18 36 AGND 35 CH3B 34 CH3A 33 CH4B 32 CH4A Typical Operating Circuit CH1A CH1B CH2A CH2B CH3A CH3B CH4A CH4B +5V 0.1µF 0.1µF -5V 0.1µF 0.1µF REFOUT 4.7µF CLK 16MHz CONTROL INTERFACE CONVST INT CS RD WR DGND AVSS REFIN DVDD +5V AVDD AGND A0 A1 D0/A2 D1/A3 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 MAX115 MAX116 31 AVSS 30 INT 29 CONVST 28 RD 27 WR 26 CS 25 CLK 24 A0 23 A1 22 D0/A2 (LSB) 21 D1/A3 20 D2 19 D3 MAX115 MAX116 SSOP ________________________________________________________________ Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 2x4-Channel, Simultaneous-Sampling 12-Bit ADCs MAX115/MAX116 ABSOLUTE MAXIMUM RATINGS AVDD to AGND ...........................................................-0.3V to 6V AVSS to AGND ............................................................0.3V to -6V DVDD to DGND ...........................................................-0.3V to 6V AGND to DGND .......................................................-0.3V to 0.3V CH_ _ to AGND....................................................................±17V REFIN, REFOUT to AGND ..........................................-0.3V to 6V Digital Inputs/Outputs to DGND ..............-0.3V to (DVDD + 0.3V) Continuous Power Dissipation (TA = +70°C) 36-Pin SSOP (derate 11.8mW/°C above +70°C) ..........941mW Operating Temperature Ranges MAX115_CAX/MAX116_CAX ...............................0°C to +70°C MAX115_EAX/MAX116_EAX ............................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s)....................................300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permane... |
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