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OPA861 宽带运算跨导放大器

The OPA861 is a versatile monolithic component designed for wide-bandwidth systems, including high performance video, RF and IF circuitry. The OPA861 is a wideband, bipolar operational transconductance amplifier (OTA).

The OTA or voltage-controlled current source can be viewed as an ideal transistor. Like a transistor, it has three terminals—a high impedance input (base), a low-impedance input/output (emitter), and the current output (collector). The OPA861, however, is self-biased and bipolar. The output collector current is zero for a zero base-emitter voltage. AC inputs centered about zero produce an output current, which is bipolar and centered about zero. The transconductance of the OPA861 can be adjusted with an external resistor, allowing bandwidth, quiescent current, and gain trade-offs to be optimized

	OPA861
Iq per channel (Max) (mA)	5.4
Slew Rate (Typ) (V/us)	900
GBW (Typ) (MHz)	400
Io (Typ) (mA)	15
Vs (Min) (V)	4
Vs (Max) (V)	12.6
Number of Channels	1
Pin/Package	6SOT-23, 8SOIC
Acl, min stable gain (V/V)	1
BW @ Acl (MHz)	80
Vio (Max) (mV)	12
Available Channels	S
Vn at Flatband (Typ) (nV/rtHz)	2.4
Approx. Price (US$)	1.30 | 100u
Iib (Max) (nA)	1000
Operating Temperature Range (C)	-40 to 85

OPA861 特性

• Wide Bandwidth (80MHz, Open-Loop, G = +5)
• High Slew Rate (900V/µs)
• High Transconductance (95mA/V)
• External IQ-Control
• Low Quiescent Current (5.4mA)

OPA861 芯片订购指南

器件	状态	温度	价格	封装 | 引脚	封装数量 | 封装载体	丝印标记
OPA861ID	ACTIVE	-40 to 85	1.50 | 100u	SOIC (D) | 8	75 | TUBE
OPA861IDBVR	ACTIVE	-40 to 85	1.30 | 100u	SOT-23 (DBV) | 6	3000 | LARGE T&R
OPA861IDBVRG4	ACTIVE	-40 to 85	1.30 | 100u	SOT-23 (DBV) | 6	3000 | LARGE T&R
OPA861IDBVT	ACTIVE	-40 to 85	1.45 | 100u	SOT-23 (DBV) | 6	250 | SMALL T&R
OPA861IDBVTG4	ACTIVE	-40 to 85	1.45 | 100u	SOT-23 (DBV) | 6	250 | SMALL T&R
OPA861IDG4	ACTIVE	-40 to 85	1.50 | 100u	SOIC (D) | 8	75 | TUBE
OPA861IDR	ACTIVE	-40 to 85	1.30 | 100u	SOIC (D) | 8	2500 | LARGE T&R
OPA861IDRG4	ACTIVE	-40 to 85	1.30 | 100u	SOIC (D) | 8	2500 | LARGE T&R

OPA861 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
OPA861ID	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861ID	OPA861ID
OPA861IDBVR	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861IDBVR	OPA861IDBVR
OPA861IDBVRG4	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861IDBVRG4	OPA861IDBVRG4
OPA861IDBVT	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861IDBVT	OPA861IDBVT
OPA861IDBVTG4	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861IDBVTG4	OPA861IDBVTG4
OPA861IDG4	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861IDG4	OPA861IDG4
OPA861IDR	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861IDR	OPA861IDR
OPA861IDRG4	Green (RoHS & no Sb/Br)	CU NIPDAUAG	Level-2-260C-1 YEAR	OPA861IDRG4	OPA861IDRG4

OPA861 应用技术支持与电子电路设计开发资源下载

1. OPA861 数据资料 dataSheet 下载.PDF
2. TI 德州仪器特殊功能放大器产品选型与价格 . xls
3. 所选封装材料的热学和电学性质 (PDF 645 KB)
4. 高速数据转换 (PDF 1967 KB)
5. 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
6. 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
7. Demystifying the Operational Transconductance Amplifier (sboa117.HTM, 8 KB)
8. Using the OPA861 with the OPA861 to Generate 4mA to 20mA Output (PDF 167 KB)
9. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
10. PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
11. 运算放大器的单电源操作 (PDF 2174 KB)
12. Tuning in Amplifiers (PDF 44 KB)
13. Op Amp Performance Analysis (PDF 76 KB)
14. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
15. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
16. Operational Amplifier Macromodels: A Comparison (PDF 59 KB)

OPA861 工具与软件

培训内容	型号	软件/工具类型
OPA861EVM 评估模块	OPA861EVM	开发电路板/EVM