参数资料
| 型号： | AD606JR |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/12页 |
| 文件大小： | 0K |
| 描述： | IC AMP LOG LP 1.2MA 16SOIC |
| 标准包装： | 1 |
| 放大器类型： | 对数 |
| 电路数： | 1 |
| 输出类型： | 差分 |
| 电流 - 输入偏压： | 4µA |
| 电流 - 电源： | 13mA |
| 电流 - 输出 / 通道： | 1.2mA |
| 电压 - 电源，单路/双路(±)： | 4.5 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
AD606
REV. B
–9–
Low Frequency Applications
With reasonably sized input coupling capacitors and an optional
input low-pass filter, the AD606 can operate to frequencies as
low as 200 Hz with good log conformance. Figure 8 shows the
schematic, with the low-pass filter included in the dashed box.
This circuit should be built inside a die cast box and the signal
brought in through a coaxial connector. The circuit must also
have a low-pass filter to reject the attenuated RF signals that
would otherwise be rectified along with the desired signal and
be added to the log output. The shielded and filtered circuit has
a 90 dB dynamic range, as shown in Figure 9.
In this circuit, R4 and R5 form a 20 dB attenuator that extends
the input range to 10 V rms. R3 isolates loads from VLOG.
Capacitors C1 and C2 (4.7
F each), R1, R2, and the AD606’s
input resistance of 2.5 k
form a 100 Hz high-pass filter that is
before the AD606; the corner frequency of this filter must be
well below the lowest frequency of interest. In addition, the
offset-correction loop introduces another pole at low signal
levels that is transformed into another high-pass filter because it
is in a feedback path. This indicates that there has to be a
gradual transition from a 40 dB roll off at low signal levels to a
20 dB roll off at high signal levels, at which point the feedback
low pass filter is effectively disabled since the incoming signal
swamps the feedback signal.
This low-pass filter introduces some attenuation due to R1 and
R2 in conjunction with the 2.5 k
input resistance of the
AD606. To minimize this effect, the value of R1 and R2 should
be kept as small as possible–100
is a good value since it bal-
ances the need to reduce the attenuation as mentioned above
with the requirement for R1 and R2 to be much larger then the
impedance of C1 and C2 at the low-pass corner frequency, in
our case about 1 MHz.
4
–80
40
3
1
–60
2
020
–20
–40
INPUT SIGNAL – dBm
V
LOG
–
Volts
DC
0
100Hz
3.5V
1kHz – 10MHz
90dB
Figure 9. Performance of Low Frequency Circuit at 100 Hz
and 1 kHz to 10 MHz (Note Attenuation)
C1
4.7 F
TO
DVM
R3
1k
+5V
INHI
COMM
PRUP
VPOS
FIL1
FIL2
LADJ
LMHI
INLO
COMM
ISUM
ILOG
BFIN
VLOG
OPCM
LMLO
AD606JN
NC
0.1 F
NC
C4
4.7 F
NC
R1
100
LOW-PASS
FILTER
R2
100
C3
680pF
R4
453
20dB
ATTENUATOR
R5
51.1
AC
INPUT
C2
4.7 F
+
DIECAST BOX
NC = NO CONNECT
Figure 8. Circuit for Low Frequency Measurements
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD606JR-REEL | 制造商:Analog Devices 功能描述:SP Amp LOG Amp Single 5.5V 16-Pin SOIC N T/R 制造商:Analog Devices 功能描述:SP AMP LOG AMP SGL 5.5V 16SOIC N - Tape and Reel |
| AD606JR-REEL7 | 功能描述:IC AMP LOG LP 1.2MA 16SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:3.5 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:30pA 电压 - 输入偏移:2000µV 电流 - 电源:200µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| AD606JRZ | 功能描述:IC AMP LOG LP 1.2MA 16SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
| AD606JRZ-REEL7 | 功能描述:IC AMP LOG LP 1.2MA 16SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:2,500 系列:Excalibur™ 放大器类型:J-FET 电路数:1 输出类型:- 转换速率:45 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:20pA 电压 - 输入偏移:490µV 电流 - 电源:1.7mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):4.5 V ~ 38 V，±2.25 V ~ 19 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商设备封装:8-SOIC 包装:带卷 (TR) |
| AD607 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power Mixer/AGC/RSSI 3 V Receiver IF Subsystem |
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