參數(shù)資料
型號(hào)： ADA4898-1YRDZ-R7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 7/20頁(yè)
文件大?。?/td> 0K
描述： IC OPAMP VF ULN ULDIST 8SOIC
標(biāo)準(zhǔn)包裝： 1,000
放大器類型： 電壓反饋
電路數(shù)： 1
轉(zhuǎn)換速率： 55 V/µs
-3db帶寬： 65MHz
電流 - 輸入偏壓： 100nA
電壓 - 輸入偏移： 20µV
電流 - 電源： 7.9mA
電流 - 輸出 / 通道： 40mA
電壓 - 電源，單路/雙路(±)： ±4.5 V ~ 16.5 V
工作溫度： -40°C ~ 105°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm Width）裸露焊盤
供應(yīng)商設(shè)備封裝： 8-SOIC-EP
包裝： 帶卷 (TR)
Data Sheet
ADA4898-1/ADA4898-2
Rev. D | Page 15 of 20
APPLICATIONS INFORMATION
HIGHER FEEDBACK RESISTOR GAIN OPERATION
The ADA4898 schematic for the noninverting gain
configuration shown in Figure 47 is nearly a textbook example.
The only exception is the feedback capacitor in parallel with
the feedback resistor, RF, but this capacitor is recommended
only when using a large RF value (>300 ). Figure 48 shows the
difference between using a 100 resistor and a 1 k feedback
resistor. Due to the high input capacitance in the ADA4898 when
using a higher feedback resistor, more peaking appears in the
closed-loop gain. Using the lower feedback resistor resolves this
issue; however, when running at higher supplies (±15 V) with
an RF of 100 , the system draws a lot of extra current into the
feedback network. To avoid this problem, a higher feedback
resistor can be used with a feedback capacitor in parallel. Figure 48
shows the effect of placing a feedback capacitor in parallel with
a larger RF. In this gain-of-2 configuration, RF = RG = 1 k and
CF = 2.7 pF. When using CF, the peaking drops from 6 dB to less
than 2 dB.
07037-
043
VIN
VOUT
10F
+VS
–VS
RT
RL
+
10F
+
CF
RF
0.1F
Figure 47. Noninverting Gain Schematic
–15
–12
–9
–6
–3
0
3
6
9
12
07037-
044
FREQUENCY (Hz)
C
LOS
E
D
-LOOP
GA
IN
(
dB
)
100k
10M
1M
100M
RF = 1k, CF = 2.7pF
RF = 1k
RF = 100
G = +2
RL = 1k
VS = ±15V
Figure 48. Small Signal Frequency Response for
Various Feedback Impedances
RECOMMENDED VALUES FOR VARIOUS GAINS
Table 8 provides a useful reference for determining various gains
and associated performance. RF is set to 100 for gains greater
than 1. A low feedback RF resistor value reduces peaking and
minimizes the contribution to the overall noise performance
of the amplifier.
Table 8. Gains and Recommended Resistor Values Associated with Them (Conditions: VS = ±5 V, TA = 25°C, RL = 1 k, RT = 49.9 )
Gain
RF ()
RG ()
3 dB SS BW (MHz),
VOUT = 100 mV p-p
Slew Rate (V/s),
VOUT = 2 V Step
ADA4898 Voltage
Noise (nV/√Hz), RTO
Total System Noise
(nV/√Hz), RTO
+1
0
N/A
65
55
0.9
1.29
+2
100
30
50
1.8
3.16
+5
100
24.9
9
45
4.5
7.07
相關(guān)PDF資料
PDF描述
PEC17DGBN CONN HEADER .100 DUAL R/A 34POS
PEC22DGAN CONN HEADER .100 DUAL R/A 44POS
1761685-6 CONN HEADER IDC 16POS VERT GOLD
PEC31DBBN CONN HEADER .100 DUAL R/A 62POS
OP285GSZ-REEL7 IC OPAMP GP 9MHZ DUAL PREC 8SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP65R41T-1202E/CHY 功能描述:校驗(yàn)器 IC Single Push/Pull Comparator 1.2V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP65R41T-2402E/CHY 功能描述:校驗(yàn)器 IC Single Push/Pull Comparator 2.4V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP65R46T-1202E/CHY 功能描述:校驗(yàn)器 IC Single Open Drain Comparator 1.2V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP65R46T-2402E/CHY 功能描述:校驗(yàn)器 IC Single Open Drain Comparator 2.4V Ref RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel
MCP660-E/ML 功能描述:運(yùn)算放大器 - 運(yùn)放 Triple 60MHz OP w/CS E temp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*