OPA820 单位增益稳定低噪声电压反馈运算放大器
The OPA820 provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 5.6mA supply current. At unity-gain, the OPA820 gives > 800MHz bandwidth with < 1dB peaking. The OPA820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±750µV and an offset current of ±400nA give excellent absolute DC precision for pulse amplifier applications.
Minimal input and output voltage swing headroom allow the OPA820 to operate on a single +5V supply with > 2VPP output swing. While not a rail-to-rail (RR) output, this swing will support most emerging analog-to-digital converter (ADC) input ranges with lower power and noise than typical RR output op amps
|
OPA820 |
| Iq per channel(Max)(mA) |
6.4 |
| Slew Rate(Typ)(V/us) |
240 |
| GBW(Typ)(MHz) |
280 |
| Io(Typ)(mA) |
110 |
| Vs(Min)(V) |
5 |
| Vs(Max)(V) |
12 |
| Number of Channels |
1 |
| Pin/Package |
5SOT-23, 8SOIC |
| Acl, min stable gain(V/V) |
1 |
| BW @ Acl(MHz) |
700 |
| Diff Gain(%) |
0.01 |
| Diff Phase(deg) |
0.03 |
| Vio(Max)(mV) |
1 |
| THD (Fc=1 MHz)(Typ)(dB) |
-85 |
| Settling Time (0.1%)(Typ)(ns) |
26 |
| Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius) |
4 |
| Available Channels |
S, Q |
| Vn at Flatband(Typ)(nV/rtHz) |
2.5 |
| Approx. Price (US$) |
0.90 | 1ku |
| Iib(Max)(nA) |
2300 |
| Noninverting Input Current Noise(pA/rtHz) |
1.7 |
| 2nd Harmonic(dBc) |
90 |
| 3rd Harmonic(dBc) |
110 |
| @ MHz |
1 |
| BW @ G=+2(MHz) |
240 |
| 0.1 dB BW Flatness(MHz) |
38 |
| Crosstalk(-dB) |
|
| Operating Temperature Range(C) |
-40 to 85 |
OPA820 特性
- HIGH BANDWIDTH (240MHz, G = +2)
- HIGH OUTPUT CURRENT (±110mA)
- LOW INPUT NOISE (2.5nV/
Hz)
- LOW SUPPLY CURRENT (5.6mA)
- FLEXIBLE SUPPLY VOLTAGE
- EXCELLENT DC ACCURACY
Maximum 25°C Input Offset Voltage = ±750µV
Maximum 25°C Input Offset Current = ±400nA
- APPLICATIONS
- LOW-COST VIDEO LINE DRIVERS
- ADC PREAMPLIFIERS
- ACTIVE FILTERS
- LOW-NOISE INTEGRATORS
- PORTABLE TEST EQUIPMENT
- OPTICAL CHANNEL AMPLIFIERS
- LOW-POWER, BASEBAND AMPLIFIERS
- CCD IMAGING CHANNEL AMPLIFIERS
- OPA650 AND OPA620 UPGRADE
OPA820 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 |
| OPA820ID |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA820IDBVR |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
|
| OPA820IDBVRG4 |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOT-23 (DBV) | 5 |
3000 | LARGE T&R |
|
| OPA820IDBVT |
ACTIVE |
-40 to 85 |
1.05 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
|
| OPA820IDBVTG4 |
ACTIVE |
-40 to 85 |
1.05 | 1ku |
SOT-23 (DBV) | 5 |
250 | SMALL T&R |
|
| OPA820IDG4 |
ACTIVE |
-40 to 85 |
1.10 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA820IDR |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
| OPA820IDRG4 |
ACTIVE |
-40 to 85 |
0.90 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
OPA820 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 |
| OPA820ID |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA820ID |
OPA820ID |
| OPA820IDBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA820IDBVR |
OPA820IDBVR |
| OPA820IDBVRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA820IDBVRG4 |
OPA820IDBVRG4 |
| OPA820IDBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA820IDBVT |
OPA820IDBVT |
| OPA820IDBVTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-1-260C-UNLIM |
OPA820IDBVTG4 |
OPA820IDBVTG4 |
| OPA820IDG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA820IDG4 |
OPA820IDG4 |
| OPA820IDR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA820IDR |
OPA820IDR |
| OPA820IDRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA820IDRG4 |
OPA820IDRG4 |
OPA820 应用技术支持与电子电路设计开发资源下载
- OPA820 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)
OPA820 工具与软件
