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| 型号： | AD8436BCPZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/24页 |
| 文件大小： | 0K |
| 描述： | IC CONV TRUE RMS-DC LP 20LFCSP |
| 产品培训模块： | Introduction to Analog RMS-to-DC Technology: Converters and Applications |
| 标准包装： | 5,000 |
| 电流 - 电源： | 325µA |
| 电源电压： | ±2.4 V ~ 18 V，4.8 V ~ 36 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 20-LFCSP-WQ（4x4） |
| 包装： | 带卷 (TR) |
Data Sheet
2C
10μF
AD8436
CORE
OGND
OUT
16k?
9
16k?
C
12
13
OBUFIN+
16k?
OBUFIN–
+
–
14
OBUFOUT
4.7μF
2
RMS
19
CAV
AD8436
17
VCC
OUT 9
8
3
IBUFOUT
16k?
Figure 36. Output Buffer Amplifier Configured as a Two-Pole, Sallen-Key
Low-Pass Filter
0.47μF
4
5
IBUFIN–
IBUFIN+
OGND
VEE
IGND 11
4.7μF
Configure the output buffer (see Figure 37) to invert dc output.
10M?
8
10
CORE
OGND
8
OUT
16k?
9
32.4k?
13
12
16k?
OBUFIN–
OBUFIN+
–
+
14
OBUFOUT
Figure 39. Connections for Single Supply Operation
Recommended Application
Figure 37. Inverting Output Configuration
Current Output Option
If a current output is required, connect the current output,
OUT, to the destination load. To maximize precision, provide a
as low as power line, and above. The recommended averaging,
crest factor and LPF capacitor values are 10 μF, 0.1 μF and
3.3 μF. Refer to the Using the Output Buffer section if additional
low-pass filtering is required.
VCC
+
means for external calibration to replace the internal trimmed
resistor, which is bypassed. This configuration is useful for conve-
nient summing of the AD8436 result with another voltage, or
for polarity inversion.
10μF
0.1μF
20 19 18
SUM CAVG CCF
1 DNC
17 16
VCC IBUFV+
OBUFV+
15
CAVG
19
CCF
18
2
RMS
AD8436
OBUFOUT
14
DC
OUT
RMS 2
8 k?
CORE
DIRECTION OF
DC OUTPUT
CURRENT
9
OUT
2k?
(OPTIONAL)
15k?
10μF
3
4
IBUFOUT
IBUFIN–
OBUFIN–
OBUFIN+
13
12
OGND
8
16k?
DO NOT CONNECT FOR
CURRENT OUTPUT
+
–
32.4k?
INVERTED DC
VOLTAGE
OUTPUT
AC IN
0.47μF
10MΩ
5
IBUFIN+
IBUFGN DNC OGND OUT
6 7 8 9
IGND
VEE
10
VEE
11
Figure 38. Connections for Current Output Showing Voltage Inversion
Single Supply
and are similar to those for dual power supply when the device is
ac-coupled. The analog inputs are all biased to half the supply
voltage, but the output remains referred to ground because the
output of the AD8436 is a current source. An additional bypass
connection is required at IGND to suppress ambient noise.
3.3μF
Figure 40. Typical Application Circuit
Converting to Average Rectified Value
To configure the AD8436 for rectified average instead of rms
conversion, simply reduce the value of CAVG to 470 pF (see
between capacitor CAVG and Pin CAVG.
Rev. B | Page 15 of 24
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8436BCPZ-WP | 功能描述:IC CONV TRUE RMS-DC LP 20LFCSP RoHS:是 类别:集成电路 (IC) >> PMIC - RMS 至 DC 转换器 系列:- 标准包装:46 系列:- 电流 - 电源:1.2mA 电源电压:±18 V，36 V 安装类型:表面贴装 封装/外壳:16-SOIC（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:管件 |
| AD8436BRQZ | 功能描述:其他电源管理 Low PowerTrue RMS-to-DC Converter RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| AD8436BRQZ_PROMO | 制造商:Analog Devices 功能描述:IC RMS TO DC CONV 0.5% QSOP |
| AD8436BRQZ-R7 | 功能描述:其他电源管理 Low PowerTrue RMS-to-DC Converter RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| AD8436BRQZ-RL | 功能描述:其他电源管理 Low PowerTrue RMS-to-DC Converter RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
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