- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383691 > OPA121KU Low Cost Precision Difet OPERATIONAL AMPLIFIER PDF資料下載
參數(shù)資料
| 型號： | OPA121KU |
| 英文描述： | Low Cost Precision Difet OPERATIONAL AMPLIFIER |
| 中文描述： | 低成本精密Difet運(yùn)算放大器 |
| 文件頁數(shù)： | 5/6頁 |
| 文件大?。?/td> | 91K |
| 代理商： | OPA121KU |
OPA121
5
–15
–10
–5
0
+5
+10
+15
Input Voltage (V)
–2
+2
+1
–1
I
INPUT CURRENTS vs INPUT VOLTAGE
WITH ±V PINS GROUNDED
0
I
IN
V
Maximum Safe Current
Maximum Safe Current
APPLICATIONS INFORMATION
OFFSET VOLTAGE ADJUSTMENT
The OPA121 offset voltage is laser-trimmed and will require
no further trim for most applications. As with most ampli-
fiers, externally trimming the remaining offset can change
drift performance by about 0.3
μ
V/
°
C for each 100
μ
V of
adjusted offset. Note that the trim (Figure 1) is similar to
operational amplifiers such as 741 and AD547. The OPA121
can replace most BIFET amplifiers by leaving the external
null circuit unconnected.
*
7
6
2
3
4
5
1
±10mV Typical
Trim Range
*10k to 1M
Trim Potentiometer
(100k Recommended)
+V
CC
–V
CC
OPA121
FIGURE 1. Offset Voltage Trim.
INPUT PROTECTION
Conventional monolithic FET operational amplifiers require
external current-limiting resistors to protect their inputs
against destructive currents that can flow when input FET
gate-to-substrate isolation diodes are forward-biased. Most
BIFET amplifiers can be destroyed by the loss of –V
CC
.
Unlike BIFET amplifiers, the
Difet
OPA121 requires input
current limiting resistors only if its input voltage is greater
than 6V more negative than –V
CC
. A 10k
series resistor
will limit input current to a safe level with up to
±
15V input
levels even if both supply voltages are lost.
Static damage can cause subtle changes in amplifier input
characteristics without necessarily destroying the device. In
precision operational amplifiers (both bipolar and FET types),
TYPICAL PERFORMANCE CURVES
(CONT)
T
A
= +25
°
C, V
CC
=
±
15VDC unless otherwise noted.
SMALL SIGNAL TRANSIENT RESPONSE
Time(μs)
0
1
2
3
4
5
0
O
+80
+80
+40
+40
LARGE SIGNAL TRANSIENT RESPONSE
Time(μs)
0
25
50
+15
0
-15
O
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| OPA124 | Low Noise Precision Difet OPERATIONAL AMPLIFIER |
| OPA124P | Low Noise Precision Difet OPERATIONAL AMPLIFIER |
| OPA124PA | Low Noise Precision Difet OPERATIONAL AMPLIFIER |
| OPA124PB | Low Noise Precision Difet OPERATIONAL AMPLIFIER |
| OPA124U | Low Noise Precision Difet OPERATIONAL AMPLIFIER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| OPA121KU/2K5 | 功能描述:運(yùn)算放大器 - 運(yùn)放 Lo Cost Prec Difet 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(bǔ)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 |
| OPA121KU/2K5E4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 Lo Cost Prec Difet 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(bǔ)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 |
| OPA121KU/2K5G4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 Lo Cost Prec Difet 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(bǔ)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 |
| OPA121KUE4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 Lo Cost Prec Difet 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(bǔ)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 |
| OPA124 | 制造商:BB 制造商全稱:BB 功能描述:Low Noise Precision Difet OPERATIONAL AMPLIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。