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参数资料
| 型号： | LTC1967CMS8 |
| 厂商： | Linear Technology |
| 文件页数： | 24/28页 |
| 文件大小： | 327K |
| 描述： | IC CONVERTER RMS-DC PREC 8MSOP |
| 标准包装： | 50 |
| 电流 - 电源： | 320µA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
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24
LTC1967
1967f
APPLICATIO S I FOR ATIO
U
U
U
TROUBLESHOOTING GUIDE
Top Ten LTC1967 Application Mistakes
1.Circuit wont workDead On Arrivalno power drawn.
Probably forgot to enable the LTC1967 by pulling
Pin8 low.
Solution: Tie Pin 8 to Pin 1.
2. Circuit wont work, but draws power. Zero or very
little output, single-ended input application.
Probably didnt connect both input pins.
Solution: Tie both inputs to something. See Input
Connections in the Design Cookbook.
4.Gain is low by a few percent, along with other screwy
results.
Probably tried to use output in a floating, differential
manner.
Solution: Tie Pin 6 to a low impedance. See Output
Connections in the Design Cookbook.
LTC1967
CONNECT PIN 3
IN1
2
3
NC
IN2
1967TS02
LTC1967
IN1
2
3
IN2
1967 TS03
DC-COUPLE ONE INPUT
LTC1967
DC-CONNECT ONE INPUT
IN1
2
3
IN2
3.Screwy results, particularly with respect to linearity
or high crest factors; differential input application.
Probably AC-coupled both input pins.
Solution: Make at least one input DC-coupled. See
Input Connections in the Design Cookbook.
TYPE 7136
ADC
LTC1967
HI
31
30
5
6
LO
V
OUT
OUT RTN
1967 TS04
GROUND PIN 6
5.Offsets perceived to be out of specification because 0V
in ` 0V out.
The offsets are not specified at 0V in. No RMS-to-
DC converter works well at 0 due to a divide-by-zero
calculation.
Solution: Measure V
IOS
/V
OOS
by extrapolating read-
ings > ?mV
DC
.
6.Linearity perceived to be out of specification particu-
larly with small input signals.
This could again be due to using 0V in as one of the
measurement points.
Solution: Check Linearity from 5mV
RMS
to
500mV
RMS
.
The input offset voltage can cause small AC linear
ityerrors at low input amplitudes as well. See Error
Analyses section.
Possible Solution: Include a trim for input offset.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC1967CMS8#PBF | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP RoHS:否 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 |
| LTC1967CMS8#TR | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP RoHS:否 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 |
| LTC1967CMS8#TRPBF | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP 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 |
| LTC1967CMS8PBF | 制造商:Linear Technology 功能描述:RMS-DC converter, LTC1967 40kHz MSOP |
| LTC1967IMS8 | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP RoHS:否 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 |
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