Datenblatt-Suchmaschine für elektronische Bauteile |
|
AD8026AR-REEL7 Datenblatt(PDF) 7 Page - Analog Devices |
|
AD8026AR-REEL7 Datenblatt(HTML) 7 Page - Analog Devices |
7 / 8 page AD8026 –7– REV. 0 In a system application, the part is designed assuming that each –Input will be driven from a low impedance source, while each +Input will be driven by a current-output DAC with a 500 Ω termination resistor. Thus, to first order, each on-chip series input resistor to each +Input is 500 Ω less than the parallel combination of the gain-setting resistors. The offset-inducing effect of the bias currents is minimized by this scheme. Figure 18 shows how to drive the AD8026 with a fixed positive gain of 8/3 from a current output DAC. The gain and offset errors are minimized by using a 500 Ω resistor (R I) to convert the DAC output current into a voltage. The gain resistor (RG) should be directly connected to ground, or driven from a low output impedance source to ensure minimum offset and maxi- mum gain accuracy. If the +Input of any of the op amps is driven from a voltage source, the low offset voltage of the AD8026 can be maintained by adding a series resistance of 500 Ω between the source and the +Input to the AD8026. This is illustrated in Figure 19. If the –Input is to be driven, such as when creating an offset volt- age, then a low source impedance should be provided in order to maintain both gain and offset accuracy. +IB –IB RP 1/4 AD8026 RF RG RI 500 VIN CURRENT- OUTPUT DAC VOUT –VS 10 F 0.1 F +VS RS CL 10 F 0.1 F Figure 18. Low Offset and High Gain Accuracy Circuit for Driving the AD8026 from a Current Output DAC VOLTAGE- OUTPUT DRIVER +IB –IB RP 1/4 AD8026 RF RG RI 500 VIN VOUT –VS 10 F 0.1 F +VS RS CL 10 F 0.1 F Figure 19. Low Offset and High Gain Accuracy Circuit for Driving the AD8026 from a Voltage Source QUAD AMPLIFIER CHARACTERIZATION BOARD Figure 20. Component Side Figure 21. Solder Side Figure 22. Silkscreen |
Ähnliche Teilenummer - AD8026AR-REEL7 |
|
Ähnliche Beschreibung - AD8026AR-REEL7 |
|
|
Link URL |
Privatsphäre und Datenschutz |
ALLDATASHEETDE.COM |
War ALLDATASHEET hilfreich? [ DONATE ] |
Über Alldatasheet | Werbung | Kontakt | Privatsphäre und Datenschutz | Linktausch | Hersteller All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |