OPA349 1uA 轨至轨 CMOS 运算放大器
The OPA349 and OPA2349 are ultra-low power operational amplifiers that provide 70kHz bandwidth with only 1µA quiescent current. These rail-to-rail input and output amplifiers are specifically designed for battery-powered applications. The input common-mode voltage range extends 200mV beyond the power-supply rails and the output swings to within 350mV of the rails, maintaining wide dynamic range. Unlike some micropower op amps, these parts are unity-gain stable and require no external compensation to achieve wide bandwidth. The OPA349 features a low input bias current that allows the use of large source and feedback resistors.
The OPA349 can be operated with power supplies from 1.8V to 5.5V with little change in performance, ensuring continuing superior performance even in low battery situations
|
OPA2349 |
OPA349 |
| Number of Channels |
2 |
1 |
| Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10) |
1.8 |
1.8 |
| Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10) |
5.5 |
5.5 |
| Iq per channel(Max)(mA) |
0.002 |
0.002 |
| GBW(Typ)(MHz) |
0.065 |
0.065 |
| Slew Rate(Typ)(V/us) |
0.02 |
0.02 |
| VIO (25 deg C)(Max)(mV) |
10 |
10 |
| Offset Drift(Typ)(uV/C) |
15 |
15 |
| IIB(Max)(pA) |
10 |
10 |
| CMRR(Min)(dB) |
52 |
52 |
| Vn at 1kHz(Typ)(nV/rtHz) |
300 |
300 |
| Rail-Rail |
In,Out |
In,Out |
| Rating |
Catalog |
Catalog |
| Pin/Package |
8SOIC, 8SOT-23 |
5SC70, 5SOT-23, 8SOIC |
| Approx. Price (US$) |
0.65 | 1ku |
0.45 | 1ku |
OPA349 特性
- LOW SUPPLY CURRENT: 1 µA
- GAIN-BANDWIDTH: 70kHz
- UNITY GAIN STABLE
- LOW INPUT BIAS CURRENT: 10pA (max)
- WIDE SUPPLY RANGE: 1.8V to 5.5V
- INPUT RANGE 200mV Beyond Rails
- OUTPUT SWINGS TO 350mV OF RAILS
- OUTPUT DRIVE CURRENT: 8mA
- OPEN-LOOP GAIN: 90dB
- MicroPACKAGES: SC70, SOT23-5, SOT23-8
- APPLICATIONS
- BATTERY PACKS AND POWER SUPPLIES
- PORTABLE PHONES, PAGERS, AND CAMERAS
- SOLAR-POWERED SYSTEMS
- SMOKE, GAS, AND FIRE DETECTION SYSTEMS
- REMOTE SENSORS
- PCMCIA CARDS
- DRIVING ANALOG-TO-DIGITAL (A/D) CONVERTERS
- MicroPOWER FILTERS
OPA349 芯片订购指南
OPA349 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 |
| OPA349NA/250 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349NA/250 |
OPA349NA/250 |
| OPA349NA/250G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349NA/250G4 |
OPA349NA/250G4 |
| OPA349NA/3K |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349NA/3K |
OPA349NA/3K |
| OPA349NA/3KG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349NA/3KG4 |
OPA349NA/3KG4 |
| OPA349SA/250 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349SA/250 |
OPA349SA/250 |
| OPA349SA/250G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA349SA/250G4 |
OPA349SA/250G4 |
| OPA349SA/3K |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA349SA/3K |
OPA349SA/3K |
| OPA349SA/3KG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA349SA/3KG4 |
OPA349SA/3KG4 |
| OPA349UA |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA349UA |
OPA349UA |
| OPA349UA/2K5 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349UA/2K5 |
OPA349UA/2K5 |
| OPA349UA/2K5G4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349UA/2K5G4 |
OPA349UA/2K5G4 |
| OPA349UAG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA349UAG4 |
OPA349UAG4 |
OPA349 应用技术支持与电子电路设计开发资源下载
- OPA349 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)
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- 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)
OPA349 工具与软件
