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參數(shù)資料
| 型號(hào)： | LTC1966MPMS8#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬專用變換器 |
| 英文描述： | RMS TO DC CONVERTER, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-8 |
| 文件頁(yè)數(shù)： | 26/38頁(yè) |
| 文件大小： | 387K |
| 代理商： | LTC1966MPMS8#TRPBF |
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LTC1966
32
1966fb
TROUBLESHOOTING GUIDE
Top Ten LTC1966 Application Mistakes
1. Circuit won’t work–Dead On Arrival–no power drawn.
– Probably forgot to enable the LTC1966 by pulling
Pin8 low.
Solution: Tie Pin 8 to Pin 1.
2. Circuit won’t work, but draws power. Zero or
very little output, single-ended input application.
– Probably didn’t connect both input pins.
Solution: Tie both inputs to something. See Input
Connections in the Design Cookbook.
applicaTions inForMaTion
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.
TYPE 7136
ADC
LTC1966
HI
31
30
6
LO
VOUT
OUT RTN
1966 TS04
GROUND PIN 6
LTC1966
CONNECT PIN 3
IN1
2
3
NC
IN2
1966 TS02
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.
LTC1966
IN1
2
3
IN2
1966 TS03
DC CONNECT ONE INPUT
LTC1966
DC CONNECT ONE INPUT
IN1
2
3
IN2
5. Offsets perceived to be out of specification because 0V
in ≠ 0V out.
– Theoffsetsarenotspecifiedat0Vin.NoRMS-to-DC
converter works well at 0 due to a divide-by-zero
calculation.
Solution: Measure VIOS/VOOS by extrapolating
readings > ±5mVDC.
6. Linearityperceivedtobeoutofspecificationparticularly
with small input signals.
– This could again be due to using 0V in as one of the
measurement points.
Solution:CheckLinearityfrom5mVRMSto500mVRMS.
– The input offset voltage can cause small AC
linearity errors at low input amplitudes as well. See
Error Analyses section.
Possible Solution: Include a trim for input offset.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1967CMS8 | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1967CMS8#PBF | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1967CMS8#TR | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1967CMS8#TRPBF | 功能描述:IC CONVERTER RMS-DC PREC 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1967CMS8PBF | 制造商:Linear Technology 功能描述:RMS-DC converter, LTC1967 40kHz MSOP |
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