没有合适的资源?快使用搜索试试~ 我知道了~
首页OPA656手册:高速运算放大器应用详解
OPA656是一款高性能、宽带、稳压增益为1的FET输入运算放大器,特别适用于高速数字转换器(ADC)的应用,如前端缓冲和差分到单端的转换。其主要特点包括: 1. 卓越的带宽:OPA656具有惊人的500MHz无失真增益带宽,使得它在高速系统中表现出色,能满足最苛刻的频率响应要求。 2. 极低的输入偏置电流:仅为2pA,这意味着在高精度应用中,如光电转换或模拟信号处理,它可以提供极低的电源消耗和干扰。 3. 稳定的性能:具有优异的温度稳定性,输入失调电压变化小,±250μV静态误差和±2μV/°C的温漂,确保了长期稳定的工作特性。 4. 低失真与高输出电流:74dB的SFDR(信噪比改进率)在5MHz时保证了信号质量,同时输出电流高达70mA,支持对大负载的驱动。 5. 出色的噪声抑制:输入电压噪声低至7nV/√Hz,这使得在低噪声环境中也能保持极高的信号捕获能力。 6. 宽频带光探测器放大器:OPA656的宽输入阻抗使其非常适合作为宽频带光探测器的前置放大器,能有效放大并处理来自光敏元件的微弱信号。 7. 全面的技术文档支持:提供样品和购买选项,以及一系列技术文档、工具软件、支持服务和社区资源,方便用户深入了解和使用该器件。 在实际设计中,根据应用需求选择合适的输入方式至关重要。差动输入适用于需要减小共模噪声和提高信号隔离的场合;反相输入适用于需要信号反转的放大环节;而同相比例放大则适合于希望放大同相输入信号的系统。OPA656因其独特的特性,对于那些追求速度、精度和低噪声的高性能系统来说,是一个理想的解决方案。
资源详情
资源推荐
![](https://csdnimg.cn/release/download_crawler_static/11032424/bg7.jpg)
OPA656
www.ti.com
SBOS196H –DECEMBER 2001–REVISED SEPTEMBER 2015
Electrical Characteristics (continued)
R
F
= 250 Ω, R
L
= 100 Ω, and G = 2 V/V, unless otherwise noted. See Figure 1 for AC performance.
TEST
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
LEVEL
(1)
T
J
= 25°C
(2)
72 76
+V
S
= 4.50 V
Power-Supply Rejection Ratio (+PSRR) to T
J
= 0°C to +70°C
(4)
A 70 mA
5.50 V
T
J
= –40°C to +85°C
(4)
68
T
J
= 25°C
(2)
56 62
–V
S
= 4.50 V
Power-Supply Rejection Ratio (–PSRR) to T
J
= 0°C to +70°C
(4)
A 54 dB
–5.50 V
T
J
= –40°C to +85°C
(4)
52
TEMPERATURE RANGE
Specified Operating Range: U,N Package T
J
= 25°C
(2)
–40 85 °C
Thermal Resistance, θ
JA
Junction-to-
Ambient
U: SO-8 T
J
= 25°C
(2)
125 °C/W
N: SOT23-5 T
J
= 25°C
(2)
150 °C/W
7.6 Electrical Characteristics: V
S
= ±5 V: High Grade DC Specifications
R
F
= 250 Ω, R
L
= 100 Ω, and G = +2 V/V, unless otherwise noted.
(1)
PARAMETER TEST CONDITIONS TEST LEVEL
(2)
MIN TYP MAX UNIT
T
J
= 25°C
(3)
±0.6 ±0.1
Input Offset Voltage V
CM
= 0 V T
J
= 0°C to +70°C
(4)
A ±0.85 mV
T
J
= –40°C to +85°C
(4)
±0.9
T
J
= 25°C
(3)
±2 ±6
Input Offset Voltage
V
CM
= 0 V T
J
= 0°C to +70°C
(4)
A ±6 µV/°C
Drift
T
J
= –40°C to +85°C
(4)
±6
T
J
= 25°C
(3)
±1 ±5
Input Bias Current V
CM
= 0 V T
J
= 0°C to +70°C
(4)
A ±450 pA
T
J
= –40°C to +85°C
(4)
±1250
T
J
= 25°C
(3)
±0.5 ±5
Input Offset Current V
CM
= 0 V T
J
= 0°C to +70°C
(4)
A ±450 pA
T
J
= –40°C to +85°C
(4)
±1250
T
J
= 25°C
(3)
88 95
Common-Mode
Rejection Ratio V
CM
= ±0.5 V T
J
= 0°C to +70°C
(4)
A 86 dB
(CMRR)
T
J
= –40°C to +85°C
(4)
84
T
J
= 25°C
(3)
74 78
Power-Supply
Rejection Ratio +V
S
= 4.5 V to 5.5 V T
J
= 0°C to +70°C
(4)
A 72 dB
(+PSRR)
T
J
= –40°C to +85°C
(4)
70
T
J
= 25°C
(3)
62 68
Power-Supply
Rejection Ratio –V
S
= –4.5 V to –5.5 V T
J
= 0°C to +70°C
(4)
A 60 dB
(–PSRR)
T
J
= –40°C to +85°C
(4)
58
(1) All other specifications are the same as the standard-grade.
(2) Test Levels: (A) 100% tested at 25°C. Over temperature limits by characterization and simulation.
(3) Junction temperature = ambient for 25°C min/max specifications.M
(4) Junction temperature = ambient at low temperature limit: junction temperature = ambient +20°C at high temperature limit for over
temperature min/max specifications.
Copyright © 2001–2015, Texas Instruments Incorporated Submit Documentation Feedback 7
Product Folder Links: OPA656
![](https://csdnimg.cn/release/download_crawler_static/11032424/bg8.jpg)
Time (10 ns/div)
Small-Signal Output Voltage (200 mV/div)
Large-Signal Output Voltage (400 mV/div)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2
–1.6
Large-Signal Right Scale
Small-Signal Left Scale
See Figure 1
G = +2
Time (10 ns/div)
Small-Signal Output Voltage (200 mV/div)
Large-Signal Output Voltage (400 mV/div)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1.6
1.2
0.8
0.4
0
–0.4
–0.8
–1.2
–1.6
Large-Signal Right Scale
Small-Signal Left Scale
See Figure 2
G = –1
100.5 1 500100
Frequency (MHz)
Gain (dB)
3
0
–3
–6
–9
–12
–15
–18
V
O
= 0.5 Vp-p
V
O
= 1 Vp-p
V
O
= 2 Vp-p
See Figure 2
G = –1
100.5 1 500100
Frequency (MHz)
Gain (dB)
9
6
3
0
–3
–6
–9
See Figure 1
V
O
= 0.2 Vp-p
V
O
= 0.5 Vp-p
V
O
= 1 Vp-p
V
O
= 2 Vp-p
G = +2
100.5 1 500100
Frequency (MHz)
Normalized Gain (dB)
6
3
0
–3
–6
–9
–12
–15
–18
See Figure 1
G = +2
G = +1
R
F
= 0 Ω
G = +5
G = +10
V
O
= 200mVp-p
100.5 1 500100
Frequency (MHz)
Normalized Gain (dB)
9
6
3
0
–3
–6
–9
–12
–15
–18
–21
–24
See Figure 2
G = –2
G = –1
G = –5
G = –10
V
O
= 200 mVp-p
R
F
= 402 Ω
OPA656
SBOS196H –DECEMBER 2001 –REVISED SEPTEMBER 2015
www.ti.com
7.7 Typical Characteristics: V
S
= ±5 V
T
A
= 25°C, G = +2 V/V, R
F
= 250 Ω, R
L
= 100 Ω, unless otherwise noted.
Figure 1. Noninverting Small-Signal Frequency Response Figure 2. Inverting Small-Signal Frequency Response
Figure 3. Noninverting Large-Signal Frequency Response
Figure 4. Inverting Large-Signal Frequency Response
Figure 5. Noninverting Pulse Response Figure 6. Inverting Pulse Response
8 Submit Documentation Feedback Copyright © 2001–2015, Texas Instruments Incorporated
Product Folder Links: OPA656
剩余36页未读,继续阅读
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://profile-avatar.csdnimg.cn/761c71b62f064e31a11f92697ac45b92_tonychangyuan.jpg!1)
tonychangyuan
- 粉丝: 0
- 资源: 18
上传资源 快速赚钱
我的内容管理 展开
我的资源 快来上传第一个资源
我的收益
登录查看自己的收益我的积分 登录查看自己的积分
我的C币 登录后查看C币余额
我的收藏
我的下载
下载帮助
![](https://csdnimg.cn/release/wenkucmsfe/public/img/voice.245cc511.png)
最新资源
- Lombok 快速入门与注解详解
- SpringSecurity实战:声明式安全控制框架解析
- XML基础教程:从数据传输到存储解析
- Matlab实现图像空间平移与镜像变换示例
- Python流程控制与运算符详解
- Python基础:类型转换与循环语句
- 辰科CD-6024-4控制器说明书:LED亮度调节与触发功能解析
- AE particular插件全面解析:英汉对照与关键参数
- Shell脚本实践:创建tar包、字符串累加与简易运算器
- TMS320F28335:浮点处理器与ADC详解
- 互联网基础与结构解析:从ARPANET到多层次ISP
- Redhat系统中构建与Windows共享的Samba服务器实战
- microPython编程指南:从入门到实践
- 数据结构实验:顺序构建并遍历链表
- NVIDIA TX2系统安装与恢复指南
- C语言实现贪吃蛇游戏基础代码
资源上传下载、课程学习等过程中有任何疑问或建议,欢迎提出宝贵意见哦~我们会及时处理!
点击此处反馈
![](https://img-home.csdnimg.cn/images/20220527035711.png)
![](https://img-home.csdnimg.cn/images/20220527035711.png)
![](https://img-home.csdnimg.cn/images/20220527035111.png)
安全验证
文档复制为VIP权益,开通VIP直接复制
![](https://csdnimg.cn/release/wenkucmsfe/public/img/green-success.6a4acb44.png)