参数资料
型号: AD641APZ
厂商: Analog Devices Inc
文件页数: 12/16页
文件大小: 0K
描述: IC AMP LOG LP 2.3MA 20PLCC
标准包装: 1
放大器类型: 对数
电路数: 1
-3db带宽: 250MHz
电流 - 输入偏压: 7µA
电压 - 输入偏移: 50µV
电流 - 电源: 35mA
电流 - 输出 / 通道: 2.3mA
电压 - 电源,单路/双路(±): ±4.5 V ~ 7.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-LCC(J 形引线)
供应商设备封装: 20-PLCC(9x9)
包装: 管件
REV. C
AD641
–5–
Typical AC Performance Characteristics–
INPUT LEVEL – dBm
–2.25
–2.00
0.25
2
–48 –44 –40
–4
–1.25
–0.50
–0.25
0.00
–1.75
–1.50
–0.75
–1.00
OUTPUT
CURRENT
mA
–52
–36 –32 –28 –24 –20 –16 –12 –8
0
50MHz
150MHz
190MHz
210MHz
250MHz
Figure 10. AC Response at 50 MHz, 150 MHz, 190 MHz,
210 MHz at 250 MHz, vs. dBm Input (Sinusoidal Input)
INPUT FREQUENCY – MHz
INTERCEPT
LEVEL
dBm
87.5
70.0
50
250
100
150
170
190
210
230
85.0
80.0
77.5
75.0
72.5
82.5
Figure 11. Intercept Level (dBm) vs. Frequency (Cascaded
AD641s—Sinusoidal Input)
Figure 12. Baseband Pulse Response of Single AD641,
Inputs of 1 mV, 10 mV and 100 mV
ERROR
IN
dB
INPUT LEVEL – dBm
–2.00
–1.75
0.50
2
–48 –44 –40
–4
–1.00
–0.25
–0.00
0.25
–1.50
–1.25
–0.50
–0.75
OUTPUT
mA
–52
–36 –32 –28 –24 –20 –16 –12 –8
0
+25 C
+125 C
–55 C
+25 C
+125 C
–55 C
OUTPUT
+25 C
+125 C
–55 C
+125 C
ERROR
+25 C
–55 C
5
4
3
2
1
0
–1
–2
–3
–4
–5
Figure 13. Logarithmic Response and Linearity at
200 MHz, TA for TA = –55°C, +25°C, +125°C
INPUT FREQUENCY – MHz
1.0
0.95
0.75
50
250
150
190
210
0.90
0.85
0.80
SLOPE
CURRENT
mA
Figure 14. Slope Current, IY, vs. Input Frequency
10
0%
5s
20mV
100
90
Figure 15. Baseband Pulse Response of Cascaded AD641s
at Inputs of 0.2 mV, 2 mV, 20 mV and 200 mV
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