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參數(shù)資料
| 型號： | TLC2652AC |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Advanced LinCMOSE PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS |
| 中文描述： | 高級LinCMOSE精密斬波穩(wěn)定運算放大器 |
| 文件頁數(shù)： | 21/31頁 |
| 文件大?。?/td> | 453K |
| 代理商： | TLC2652AC |
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TLC2652, TLC2652A, TLC2652Y
Advanced LinCMOS
PRECISION CHOPPER-STABILIZED
OPERATIONAL AMPLIFIERS
SLOS019C – SEPTEMBER 1988 – REVISED FEBRUARY 1999
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 31
–50
–25
TA – Free-Air Temperature –
°
C
50
°
48
°
46
°
44
°
42
°
40
°
–75
0
50
PHASE MARGIN
vs
FREE-AIR TEMPERATURE
100
125
25
75
VDD
±
=
±
5 V
RL = 10 k
CL = 100 pF
φ
m
Figure 32
0
200
400
600
PHASE MARGIN
vs
LOAD CAPACITANCE
800
1000
VDD
±
=
±
5 V
RL = 10 k
TA = 25
°
C
CL – Load Capacitance – pF
φ
m
60
°
50
°
40
°
30
°
20
°
10
°
0
°
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
APPLICATION INFORMATION
capacitor selection and placement
The two important factors to consider when selecting external capacitors C
XA
and C
XB
are leakage and
dielectric absorption. Both factors can cause system degradation, negating the performance advantages
realized by using the TLC2652.
Degradation from capacitor leakage becomes more apparent with the increasing temperatures. Low-leakage
capacitors and standoffs are recommended for operation at T
A
= 125
°
C. In addition, guard bands are
recommended around the capacitor connections on both sides of the printed circuit board to alleviate problems
caused by surface leakage on circuit boards.
Capacitors with high dielectric absorption tend to take several seconds to settle upon application of power, which
directly affects input offset voltage. In applications where fast settling of input offset voltage is needed, it is
recommended that high-quality film capacitors, such as mylar, polystyrene, or polypropylene, be used. In other
applications, however, a ceramic or other low-grade capacitor can suffice.
Unlike many choppers available today, the TLC2652 is designed to function with values of C
XA
and C
XB
in the
range of 0.1
μ
F to 1
μ
F without degradation to input offset voltage or input noise voltage. These capacitors
should be located as close as possible to the C
XA
and C
XB
pins and returned to either V
DD–
or C RETURN. On
many choppers, connecting these capacitors to V
DD–
causes degradation in noise performance. This problem
is eliminated on the TLC2652.
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| TLC2652AI14D | Advanced LinCMOSE PRECISION CHOPPER-STABILIZED OPERATIONAL AMPLIFIERS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC2652AC-14D | 功能描述:運算放大器 - 運放 Adv Prec. Chopper RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| TLC2652AC-14DG4 | 功能描述:運算放大器 - 運放 LinCMOS Chopper Stabilized OP AMP RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| TLC2652AC-8D | 功能描述:運算放大器 - 運放 Adv Prec. Chopper RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| TLC2652AC-8DG4 | 功能描述:運算放大器 - 運放 Adv LinCMOS Prec Chopper-Stabilized RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| TLC2652ACN | 功能描述:運算放大器 - 運放 Adv Prec. Chopper RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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