參數(shù)資料
型號(hào): ADA4897-1ARZ-RL
廠商: Analog Devices Inc
文件頁(yè)數(shù): 14/29頁(yè)
文件大小: 0K
描述: IC OPAMP GP RR 230MHZ LN 8SOIC
特色產(chǎn)品: Rail-to-Rail Input/Output Amplifiers
標(biāo)準(zhǔn)包裝: 2,500
放大器類型: 電壓反饋
電路數(shù): 1
輸出類型: 滿擺幅
轉(zhuǎn)換速率: 120 V/µs
-3db帶寬: 230MHz
電流 - 輸入偏壓: 11µA
電壓 - 輸入偏移: 28µV
電流 - 電源: 3mA
電流 - 輸出 / 通道: 80mA
電壓 - 電源,單路/雙路(±): 3 V ~ 10 V,±1.5 V ~ 5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SO
包裝: 帶卷 (TR)
ADA4896-2/ADA4897-1/ADA4897-2
Data Sheet
Rev.
| Page 20 of 28
APPLICATIONS INFORMATION
TYPICAL PERFORMANCE VALUES
To reduce design time and eliminate uncertainty, Table 13
provides a reference for typical gains, component values, and
performance parameters. The supply voltage used is 5 V. The band-
width is obtained with a small signal output of 200 mV p-p, and
the slew rate is obtained with a 2 V output step.
Note that as the gain increases, the small signal bandwidth
decreases, as is expected from the gain bandwidth product
relationship. In addition, the phase margin improves with
higher gains, and the amplifier becomes more stable. As a
result, the peaking in the frequency response is reduced
(see Figure 51).
2
FREQUENCY (MHz)
0.1
1
10
100
500
1
0
–1
–2
–3
–4
–5
–6
VS = +5V
VOUT = 200mV p-p
RF = 249
RL = 1k
G = +20
09
44
7-
0
2
0
G = +10
G = +5
G = +2
G = +1
NO
RM
AL
IZ
E
D
CL
O
S
E
D-
L
O
P
G
A
IN
(
d
B)
Figure 51. Small Signal Frequency Response at Various Gains
Table 13. Recommended Values and Typical Performance
Gain
RF (Ω)
RG (Ω)
3 dB BW (MHz)
Slew Rate, tR/tF (V/μs)
Peaking (dB)
Total Output Noise Including
Resistors (nV/√Hz)
+1
0
N/A
92
78/158
0.8
1.0
+2
249
54
101/140
1.2
3.6
+5
249
61.9
30
119/137
0
6.8
+10
249
27.4
17
87/88
0
12.0
+20
249
13.0
9
37/37
0
21.1
B
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