OPA129 超低偏置电流差动运算放大器
The OPA129 is an ultra-low bias current monolithic operational amplifier offered in an 8-pin PDIP and SO-8 package. Using advanced geometry dielectrically-isolated FET (Difet®) inputs, this monolithic amplifier achieves a high performance level.
Difet fabrication eliminates isolation-junction leakage current—the main contributor to input bias current with conventional monolithic FETs. This reduces input bias current by a factor of 10 to 100. Very low input bias current can be achieved without resorting to small-geometry FETs or CMOS designs which can suffer from much larger offset voltage, voltage noise, drift, and poor power supply rejection.
The OPA129 special pinout eliminates leakage current that occurs with other op amps
|
OPA129 |
| Number of Channels |
1 |
| Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) |
10 |
| Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) |
36 |
| Iq per channel(Max)(mA) |
1.8 |
| GBW(Typ)(MHz) |
1 |
| Slew Rate(Typ)(V/us) |
2.5 |
| VIO (25 deg C)(Max)(mV) |
2 |
| Offset Drift(Typ)(uV/C) |
3 |
| IIB(Max)(pA) |
0.1 |
| CMRR(Min)(dB) |
80 |
| Vn at 1kHz(Typ)(nV/rtHz) |
17 |
| Rating |
Catalog |
| Pin/Package |
8SOIC |
| Operating Temperature Range(C) |
-40 to 125 |
| Approx. Price (US$) |
3.20 | 1ku |
OPA129 特性
- ULTRA-LOW BIAS CURRENT: 100fA max
- LOW OFFSET: 2mV max
- LOW DRIFT: 10µV/°C max
- HIGH OPEN-LOOP GAIN: 94dB min
- LOW NOISE: 15nV/
Hz at 10kHz
- PLASTIC DIP and SOIC PACKAGE
- APPLICATIONS
- PHOTODETECTOR PREAMP
- CHROMATOGRAPHY
- ELECTROMETER AMPLIFIERS
- MASS SPECTROMETER
- pH PROBE AMPLIFIER
- ION GAGE MEASUREMENT
OPA129 芯片订购指南
| 器件 |
状态 |
温度 |
价格（美元） |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| OPA129U |
ACTIVE |
-40 to 125 |
3.20 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA129UB |
ACTIVE |
-40 to 125 |
6.10 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA129UB/2K5 |
ACTIVE |
-40 to 125 |
5.45 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
| OPA129UB/2K5E4 |
ACTIVE |
-40 to 125 |
5.45 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
| OPA129UBE4 |
ACTIVE |
-40 to 125 |
6.10 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA129UBG4 |
ACTIVE |
-40 to 125 |
6.10 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA129UE4 |
ACTIVE |
-40 to 125 |
3.20 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
OPA129 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| OPA129U |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
OPA129U |
OPA129U |
| OPA129UB |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
OPA129UB |
OPA129UB |
| OPA129UB/2K5 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
OPA129UB/2K5 |
OPA129UB/2K5 |
| OPA129UB/2K5E4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
OPA129UB/2K5E4 |
OPA129UB/2K5E4 |
| OPA129UBE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
OPA129UBE4 |
OPA129UBE4 |
| OPA129UBG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
OPA129UBG4 |
OPA129UBG4 |
| OPA129UE4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
OPA129UE4 |
OPA129UE4 |
OPA129 应用技术支持与电子电路设计开发资源下载
- OPA129 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪运算放大器 (Op Amp)产品选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
OPA129 工具与软件
