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參數(shù)資料
| 型號(hào)： | AD549KH |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 3/20頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC OPAMP GP 1MHZ LP 20MA TO99-8 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Topgate™ |
| 放大器類型： | 通用 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 3 V/µs |
| 增益帶寬積： | 1MHz |
| 電流 - 輸入偏壓： | 0.075pA |
| 電壓 - 輸入偏移： | 150µV |
| 電流 - 電源： | 600µA |
| 電流 - 輸出 / 通道： | 20mA |
| 電壓 - 電源，單路/雙路(±)： | ±5 V ~ 18 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | TO-99-8 金屬罐 |
| 供應(yīng)商設(shè)備封裝： | TO-99-8 |
| 包裝： | 散裝 |
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AD549
Rev. H | Page 11 of 20
The case of the AD549 is connected to Pin 8 so that it can be
bootstrapped near the input potential. This minimizes pin
leakage and input common-mode capacitance due to the case.
Guard schemes for inverting and noninverting amplifier
00
51
1
-02
8
2
3
6
8
AD549
+
VOUT
–
IN
CF
RF
GUARD
Figure 28. Inverting Amplifier with Guard
0
05
11
-0
29
3
2
6
8
AD549
+
VOUT
–
VS
+
–
GUARD
RF
RI
Figure 29. Noninverting Amplifier with Guard
Other guidelines include keeping the circuit layout as compact
as possible and keeping the input lines short. Keeping the assembly
rigid and minimizing sources of vibration reduces triboelectric
and piezoelectric effects. All precision, high impedance circuitry
requires shielding against interference noise. Use low noise coaxial
or triaxial cables for remote connections to the input signal lines.
OFFSET NULLING
The AD549 input offset voltage can be nulled by using balance
Pin 1 and Pin 5, as shown in Figure 30. Nulling the input offset
voltage in this fashion introduces an added input offset voltage
drift component of 2.4 μV/°C per mV of nulled offset (a maxi-
mum additional drift of 0.6 μV/°C for the AD549K, 1.2 μV/°C
for the AD549L, and 2.4 μV/°C for the AD549J).
00
51
1-
03
0
2
3
6
5
1
7
4
AD549
+
VOUT
–
–VS
+VS
10k
Figure 30. Standard Offset Null Circuit
The approach in Figure 31 can be used when the amplifier is
used as an inverter. This method introduces a small voltage
referenced to the power supplies in series with the positive
input terminal of the amplifier. The amplifier input offset
voltage drift with temperature is not affected. However,
variation of the power supply voltages causes offset shifts.
0
05
1
1-
03
1
2
3
6
AD549
+
VOUT
–
VI
+
–
RF
RI
200
100k
499k
0.1F
–VS
+VS
Figure 31. Alternate Offset Null Circuit for Inverter
Table 3. Insulating Materials and Characteristics
Material
Volume Resistivity
(V to CM)
Minimal
Triboelectric Effect1
Minimal
Piezoelectric Effect1
Resistance to
Water Absorption1
Teflon
1017 to 1018
W
G
Kel-F
1017 to 1018
W
M
G
Sapphire
1016 to 1018
M
G
Polyethylene
1014 to 10
M
G
M
Polystyrene
1012 to 1018
W
M
Ceramic
1012 to 1014
W
M
W
Glass Epoxy
1010 to 1017
W
M
W
PVC
1010 to 1015
G
M
G
Phenolic
105 to 1012
W
G
W
1 G: good with regard to property; M: moderate with regard to property; W: weak with regard to property.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD549KH/+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
| AD549KHZ | 功能描述:IC OPAMP GP 1MHZ LP 20MA TO99-8 RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Topgate™ 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
| AD549L | 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Input Bias Current Operational Amplifier |
| AD549LH | 功能描述:IC OPAMP GP 1MHZ LP 20MA TO99-8 RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Topgate™ 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| AD549LH | 制造商:Analog Devices 功能描述:OP AMP U-LOW BIAS TO-99-8 549 |
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