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AD7886JP bảng dữ liệu(PDF) 4 Page - Analog Devices |
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AD7886JP bảng dữ liệu(HTML) 4 Page - Analog Devices |
4 / 16 page AD7886 –4– REV. B ORDERING GUIDE Integral Temperature SNR Nonlinearity Package Model1, 2 Range (dBs) (LSBs) Option3 AD7886JD 0 °C to +70°C 65 D-28 AD7886KD 0 °C to +70°C67 ±2.0 D-28 AD7886JP 0 °C to +70°C 65 P-28A 2 AD7886KP 0 °C to +70°C67 ±2.0 P-28A 2 AD7886BD –40 °C to +85°C67 ±2.0 D-28 AD7886TD –55 °C to +125°C65 ±2.0 D-28 NOTES 1Contact your sales office for availability of AD7886BD, AD7886TD and 1 MHz version. 2Analog Devices reserves the right to ship J-Leaded Ceramic Chip Carrier (JLCCC) in lieu of PLCC packages. 3D = Ceramic DIP; P = Plastic Leaded Chip Carrier. PIN FUNCTION DESCRIPTION DIP Pin Number Mnemonic Description Power Supply 10 & 19 VDD Positive Power Supply, +5 V ± 5%. Both V DD pins must be tied together. 15 & 24 VSS Negative Power Supply, –5 V ± 5%. Both V SS pins must be tied together. 16 & 23 AGND Analog Ground. Both AGND pins must be tied together. 5 DGND Digital Ground. Analog and Reference Inputs 17 & 18 VIN Analog Inputs, VIN1 and VIN2. The part can be pin strapped for any one of three analog input ranges; Range Pin Strap Signal Input 0 V to 5 V Connect VIN2 to VIN1 VIN1 & VIN2 0 V to 10 V Connect VIN2 to GND VIN1 ±5 V Connect VIN2 to +5 V VIN1 20 +5REF +5 V Reference input. This input is used in conjunction with SUM and VREF inputs to scale an external +5 V reference to –3.5 V, the required reference for the part (see Figure 2). 21 SUM Summing Point. This input is used in conjunction with +5REF and VREF inputs to scale an external +5 V reference to –3.5 V, the required reference for the part (see Figure 2). 22 VREF Voltage Reference Input. The AD7886 is specified with VREF = –3.5 V. Interface and Control 1–4, DB7–DB4 Three-state data outputs. 6–9, DB3–DB0 These outputs are controlled by CS and RD. DB11 is the Most Significant Bit (MSB). 25–28 DB11–DB8 11 BUSY BUSY Output indicates converter status. BUSY is low during conversion. 12 CS Chip Select Input. The device is selected when this input is low. 13 RD Read Input. This active low signal, in conjunction with CS, is used to enable the output data three-state drivers. 14 CONVST Conversion Start Input. This input is used to start conversion. |
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