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參數資料
| 型號： | AD8594AR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | CMOS Single Supply Rail-to-Rail Input/Output Operational Amplifiers with Shutdown |
| 中文描述： | QUAD OP-AMP, 30000 uV OFFSET-MAX, 2.2 MHz BAND WIDTH, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數： | 12/15頁 |
| 文件大小： | 227K |
| 代理商： | AD8594AR |
AD8591/AD8592/AD8594
–12–
REV. A
SPICE Model for the AD8591/AD8592/AD8594 Amplifier
The SPICE model for the AD8591/AD8592/AD8594 amplifier is
one of the more realistic computer simulation macro-models
available, providing a high degree of realism with respect to char-
acteristics of the actual amplifier. This model, shown in Listing 1,
is based on typical values for the device and can be downloaded
from Analog Devices’ Internet site at
www.analog.com
.
The model uses a common source output stage to provide rail-
to-rail performance. This allows realistic simulation of open-
loop gain dependency on load resistance as well as maximum
output voltage versus output current. Two differential pairs are
used in the input stage of the model, simulating the rail-to-rail
input stage of the AD8591/AD8592/AD8594 amplifier.
The EOS voltage source establishes the input offset voltage and
is also used to simulate the common-mode rejection power
supply rejection, and input voltage noise characteristics for the
model. In addition, G2, R2 and CF are used to help set the
open-loop gain and gain-bandwidth product of the model.
A number of secondary characteristics are also accurately por-
trayed in the SPICE model. Flicker noise is accurately modeled
with the 1/f corner frequency set through the KF and AF terms
in the input stage transistors. C1 and C2 are used in the input
section to create secondary poles to achieve an accurate phase
margin characteristic for the model.
The AD8591/AD8592/AD8594 shutdown circuitry is included
in the model. Switches S1 through S7 deactivate the op amp
circuitry in shutdown mode. The logic threshold for the shut-
down circuitry is accurately modeled through the VSWITCH
model parameters near the end of the listing. The active supply
current versus supply voltage is also modeled through the volt-
age-controlled current source GSY.
Characteristics of this model are based on typical values for the
AD8591/AD8592/AD8594 amplifier at +27
°
C. The model’s
characteristics are optimized specifically at +27
°
C, and may lose
accuracy at different simulation temperatures.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD8594AR-REEL | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O 6V 16-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:QUAD, CMOS RAIL-RAIL OP AMP W/SHUTDOWN - Tape and Reel |
| AD8594AR-REEL7 | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O 6V 16-Pin SOIC N T/R |
| AD8594ARU | 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS Single Supply Rail-to-Rail Input/Output Operational Amplifiers with Shutdown |
| AD8594ARU-REEL | 制造商:Analog Devices 功能描述:OP Amp Quad GP R-R I/O 6V 16-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:QUAD, CMOS RAIL-RAIL OP AMP W/SHUTDOWN - Tape and Reel |
| AD8594ARUZ-REEL | 功能描述:IC OPAMP GP R-R CMOS 16TSSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:2,500 系列:- 放大器類型:通用 電路數:1 輸出類型:滿擺幅 轉換速率:0.11 V/µs 增益帶寬積:350kHz -3db帶寬:- 電流 - 輸入偏壓:4nA 電壓 - 輸入偏移:20µV 電流 - 電源:260µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 36 V，±1.35 V ~ 18 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:8-SO 包裝:帶卷 (TR) |
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