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AD8450ASTZ Datasheet(PDF) 10 Page - Analog Devices |
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AD8450ASTZ Datasheet(HTML) 10 Page - Analog Devices |
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10 / 42 page  Data Sheet AD8450 Rev. B | Page 9 of 41 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS NOTES 1. NC = NO CONNECT. 2 RGP 3 RGPS 4 ISGP0 7 ISGP1S 6 ISGP1 5 ISGP0S 1 ISVP 8 ISGP2 9 ISGP3 10 RFBP 12 ISGN3 13 ISGN2 14 ISGN1S 15 ISGN1 16 ISGN0S 17 ISGN0 18 RGNS 19 RGN 20 ISVN 11 RFBN 59 58 57 54 55 56 60 53 52 VCTRL VCLN AVCC VVE1 NC VINT VCLP VVE0 NC 51 VVP0 49 VSET 48 NC 47 DVCC 46 FAULT 45 DGND 44 OCPS 43 OCPR 42 VREF 41 OVPR 50 VSETBF 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 PIN 1 AD8450 TOP VIEW (Not to Scale) Figure 2. Pin Configuration Table 4. Pin Function Descriptions Pin No. Mnemonic Input/ Output1 Description 1, 20 ISVP, ISVN Input Current Sense Instrumentation Amplifier Positive (Noninverting) and Negative (Inverting) Inputs. Connect these pins across the current sense shunt resistor. 2, 19 RGP, RGN N/A Current Sense Instrumentation Amplifier Gain Setting Pins. Connect these pins to the appropriate resistor network gain pins to select the current sense gain (see Table 5). 3, 18 RGPS, RGNS N/A Kelvin Sense Pins for the Current Sense Instrumentation Amplifier Gain Setting Pins (RGP and RGN). 4, 6, 8, 9, 12, 13, 15, 17 ISGP0, ISGP1, ISGP2, ISGP3, ISGN3, ISGN2, ISGN1, ISGN0 N/A Current Sense Instrumentation Amplifier Resistor Network Gain Pins (see Table 5). 5, 7, 14, 16 ISGP0S, ISGP1S, ISGN1S, ISGN0S N/A Kelvin Sense Pins for the ISGP0, ISGP1, ISGN1, and ISGN0 Pins. 10, 11 RFBP, RFBN Output Current Sense Preamplifier Positive and Negative Outputs. 21, 35 BVP3S, BVN3S N/A Kelvin Sense Pins for the Voltage Sense Difference Amplifier Inputs BVP3 and BVN3. 22, 23, 24, 25, 31, 32, 33, 34 BVP3, BVP2, BVP1, BVP0, BVN0, BVN1, BVN2, BVN3 Input Voltage Sense Difference Amplifier Inputs. Each input pair (BVPx and BVNx) corresponds to a different voltage sense gain (see Table 6). 26, 42, 73 VREF Output Voltage Reference Output Pins. VREF = 2.5 V. 27 BVREFH Input Reference Input for the Voltage Sense Difference Amplifier. To level shift the voltage sense difference amplifier output by approximately 5 mV, connect this pin to the VREF pin. Otherwise, connect this pin to the BVREFL pin. 28, 75 AGND N/A Analog Ground Pins. 29 BVREFL Input Reference Input for the Voltage Sense Difference Amplifier. The default connection is to ground. 30 BVREFLS N/A Kelvin Sense Pin for the BVREFL Pin. |
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