OPA847 具有关断状态的宽带超低噪声电压反馈运算放大器
The OPA847 combines very high gain bandwidth and large signal performance with an ultra-low input noise voltage (0.85nV/√Hz) while using only 18mA supply current. Where power saving is critical, the OPA847 also includes an optional power shutdown pin that, when pulled low, disables the amplifier and decreases the supply current to < 1% of the powered-up value. This optional feature may be left disconnected to ensure normal amplifier operation when no power-down is required.
The combination of very low input voltage and current noise, along with a 3.9GHz gain bandwidth product, make the OPA847 an ideal amplifier for wideband transimpedance applications. As a voltage gain stage, the OPA847 is optimized for a flat frequency response at a gain of +20V/V and is stable down to gains as low as +12V/V
|
OPA842 |
OPA843 |
OPA846 |
OPA847 |
| Iq per channel(Max)(mA) |
22.5 |
22.5 |
13.2 |
18.9 |
| Slew Rate(Typ)(V/us) |
400 |
1000 |
625 |
950 |
| GBW(Typ)(MHz) |
200 |
800 |
1750 |
3900 |
| Io(Typ)(mA) |
100 |
100 |
80 |
75 |
| Vs(Min)(V) |
10 |
10 |
10 |
10 |
| Vs(Max)(V) |
12 |
12 |
12 |
12 |
| Number of Channels |
1 |
1 |
1 |
1 |
| Pin/Package |
5SOT-23, 8SOIC |
5SOT-23, 8SOIC |
5SOT-23, 8SOIC |
8SOIC, 6SOT-23 |
| Acl, min stable gain(V/V) |
1 |
3 |
7 |
12 |
| BW @ Acl(MHz) |
400 |
500 |
500 |
600 |
| Diff Gain(%) |
0.003 |
0.001 |
0.02 |
|
| Diff Phase(deg) |
0.008 |
0.012 |
0.02 |
|
| Vio(Max)(mV) |
1.2 |
1.2 |
0.6 |
0.5 |
| THD (Fc=1 MHz)(Typ)(dB) |
-100 |
-95 |
-92 |
-96 |
| Settling Time (0.1%)(Typ)(ns) |
15 |
7.5 |
15 |
20 |
| Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius) |
4 |
4 |
1.5 |
1.5 |
| Available Channels |
S |
S |
S, D |
S |
| Vn at Flatband(Typ)(nV/rtHz) |
2.7 |
2 |
1.2 |
0.85 |
| Approx. Price (US$) |
1.55 | 1ku |
1.60 | 1ku |
1.70 | 1ku |
2.00 | 1ku |
| Iib(Max)(nA) |
37000 |
37000 |
21000 |
42000 |
| Noninverting Input Current Noise(pA/rtHz) |
2.7 |
2.8 |
2.8 |
2.5 |
| 2nd Harmonic(dBc) |
94 |
96 |
100 |
105 |
| 3rd Harmonic(dBc) |
93 |
110 |
112 |
110 |
| @ MHz |
5 |
5 |
5 |
5 |
| BW @ G=+2(MHz) |
200 |
|
|
|
| 0.1 dB BW Flatness(MHz) |
56 |
65 |
140 |
60 |
| Operating Temperature Range(C) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
OPA847 特性
- HIGH GAIN BANDWIDTH: 3.9GHz
- LOW INPUT VOLTAGE NOISE: 0.85nV/√Hz
- VERY LOW DISTORTION: –105dBc (5MHz)
- HIGH SLEW RATE: 950V/us
- HIGH DC ACCURACY: VIO < ±100uV
- LOW SUPPLY CURRENT: 18.1mA
- LOW SHUTDOWN POWER: 2mW
- STABLE FOR GAINS
12
- APPLICATIONS
- HIGH DYNAMIC RANGE ADC PREAMPS
- LOW NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERS
- WIDEBAND, HIGH GAIN AMPLIFIERS
- LOW NOISE DIFFERENTIAL RECEIVERS
- ULTRASOUND CHANNEL AMPLIFIERS
- IMPROVED UPGRADE FOR THE OPA687, CLC425, AND LMH6642
OPA847 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 |
| OPA847ID |
ACTIVE |
-40 to 85 |
2.40 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA847IDBVR |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
SOT-23 (DBV) | 6 |
3000 | LARGE T&R |
|
| OPA847IDBVRG4 |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
SOT-23 (DBV) | 6 |
3000 | LARGE T&R |
|
| OPA847IDBVT |
ACTIVE |
-40 to 85 |
2.30 | 1ku |
SOT-23 (DBV) | 6 |
250 | SMALL T&R |
|
| OPA847IDBVTG4 |
ACTIVE |
-40 to 85 |
2.30 | 1ku |
SOT-23 (DBV) | 6 |
250 | SMALL T&R |
|
| OPA847IDG4 |
ACTIVE |
-40 to 85 |
2.40 | 1ku |
SOIC (D) | 8 |
75 | TUBE |
|
| OPA847IDR |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
| OPA847IDRG4 |
ACTIVE |
-40 to 85 |
2.00 | 1ku |
SOIC (D) | 8 |
2500 | LARGE T&R |
|
OPA847 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 |
| OPA847ID |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847ID |
OPA847ID |
| OPA847IDBVR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847IDBVR |
OPA847IDBVR |
| OPA847IDBVRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847IDBVRG4 |
OPA847IDBVRG4 |
| OPA847IDBVT |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847IDBVT |
OPA847IDBVT |
| OPA847IDBVTG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847IDBVTG4 |
OPA847IDBVTG4 |
| OPA847IDG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847IDG4 |
OPA847IDG4 |
| OPA847IDR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847IDR |
OPA847IDR |
| OPA847IDRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
OPA847IDRG4 |
OPA847IDRG4 |
OPA847 应用技术支持与电子电路设计开发资源下载
- OPA847 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
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- 运算放大器的单电源操作 (PDF 2174 KB)
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- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
OPA847 工具与软件