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參數(shù)資料
| 型號： | AD8563 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 1.8 V to 5 V Auto-Zero, In-Amp with Shutdown |
| 中文描述： | 1.8 V至5 V自穩(wěn)零，在與關(guān)斷放大器 |
| 文件頁數(shù)： | 8/15頁 |
| 文件大?。?/td> | 191K |
| 代理商： | AD8563 |
AD8563
Preliminary Technical Data
MAXIMIZING PERFORMANCE THROUGH PROPER
LAYOUT
To achieve the maximum performance of the AD8563, care
should be taken in the circuit board layout. The PC board
surface must remain clean and free of moisture to avoid leakage
currents between adjacent traces. Surface coating of the circuit
board reduces surface moisture and provides a humidity barrier,
reducing parasitic resistance on the board.
Rev. PrA | Page 8 of 15
Care must be taken to minimize parasitic capacitance on Pin 1
and Pin 10 (Resistor R1 connections). Traces from Pin 1 and
Pin 10 to R1 should be kept short and symmetric. Excessive
capacitance on these pins will result in a gain error. This effect
is most prominent at low gains (G < 10).
For high impedance sources, the PC board traces from the
AD8563 inputs should be kept to a minimum to reduce input
bias current errors.
POWER SUPPLY BYPASSING
The AD8563 uses internally generated clock signals to perform
the auto-correction. As a result, proper bypassing is necessary
to achieve optimum performance. Inadequate or improper
bypassing of the supply lines can lead to excessive noise and
offset voltage.
A 0.1 μF surface-mount capacitor should be connected between
the supply lines. This capacitor is necessary to minimize ripple
from the correction clocks inside the IC. For dual-supply
operation (see Figure 5), a 0.1 μF (ceramic) surface-mount
capacitor should be connected from each supply pin to ground.
For single-supply operation, a 0.1 μF surface-mount capacitor
should be connected from the supply line to ground.
All bypass capacitors should be positioned as close to the DUT
supply pins as possible, especially the bypass capacitor between
the supplies. Placement of the bypass capacitor on the back of
the board directly under the DUT is preferred.
INPUT OVERVOLTAGE PROTECTION
All terminals of the AD8563 are protected against ESD. In the
case of a dc overload voltage beyond either supply, a large
current would flow directly through the ESD protection diodes.
If such a condition should occur, an external resistor should be
used in series with the inputs to limit current for voltages
beyond the supply rails. The AD8563 can safely handle 5 mA of
continuous current, resulting in an external resistor selection of
R
EXT
= (V
IN
V
S
)/5 mA.
CAPACITIVE LOAD DRIVE
The output buffer, Pin 4, can drive capacitive loads up to 100 pF.
I
I
I – I
R1
M2
V
INP
M3
M4
M1
R1
(V
INP
– V
INN
)
I
R1
=
R1
2I
2I
V
INN
V
BIAS
M5
M6
I – I
R1
I + I
R1
2I
R1
C2
R2
V
REF
A1
V
INP
– V
INN
R2
2R2
V
OUT
= V
REF
+
0
EXTERNAL
V
CC
Figure 2. Simplified AD8563 Schematic
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD8563ARMZ-R2 | 1.8 V to 5 V Auto-Zero, In-Amp with Shutdown |
| AD8563ARMZ-REEL | 1.8 V to 5 V Auto-Zero, In-Amp with Shutdown |
| AD8571ARM-R2 | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers |
| AD8571ARM-REEL | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers |
| AD8571ARMZ-R2 | Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD8563ARMZ-R2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1.8 V to 5 V Auto-Zero, In-Amp with Shutdown |
| AD8563ARMZ-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:1.8 V to 5 V Auto-Zero, In-Amp with Shutdown |
| AD8564 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad 7 ns Single Supply Comparator |
| AD8564_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad 7 ns Single Supply Comparator |
| AD8564AN | 功能描述:IC COMP QUAD 7NS ULT-FAST 16-DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 比較器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 類型:通用 元件數(shù):1 輸出類型:CMOS，推挽式，滿擺幅，TTL 電壓 - 電源，單路/雙路(±):2.5 V ~ 5.5 V，±1.25 V ~ 2.75 V 電壓 - 輸入偏移（最小值）:5mV @ 5.5V 電流 - 輸入偏壓（最小值）:1pA @ 5.5V 電流 - 輸出（標準）:- 電流 - 靜態(tài)（最大值）:24µA CMRR, PSRR（標準）:80dB CMRR，80dB PSRR 傳輸延遲（最大）:450ns 磁滯:±3mV 工作溫度:-40°C ~ 85°C 封裝/外殼:6-WFBGA，CSPBGA 安裝類型:表面貼裝 包裝:管件 其它名稱:Q3554586 |
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