OPA3691

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数据表

document-pdfAcrobat Triple Wideband, Current-Feedback Operational Amplifier With Disable 数据表 (Rev. E) (英语)

OPA3691

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数据表

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产品详情

Architecture

Current FB

Number of channels

3

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

4

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

12

GBW (typ) (MHz)

280

BW at Acl (MHz)

280

Acl, min spec gain (V/V)

1

Slew rate (typ) (V/µs)

2100

Vn at flatband (typ) (nV√Hz)

1.7

Vn at 1 kHz (typ) (nV√Hz)

1.7

Iq per channel (typ) (mA)

5.1

Vos (offset voltage at 25°C) (max) (mV)

3

Rail-to-rail

No

Features

Shutdown

Rating

Catalog

Operating temperature range (°C)

-40 to 85

CMRR (typ) (dB)

56

Input bias current (max) (pA)

35000000

Offset drift (typ) (µV/°C)

20

Iout (typ) (mA)

190

2nd harmonic (dBc)

70

3rd harmonic (dBc)

74

Frequency of harmonic distortion measurement (MHz)

5

Architecture

Current FB

Number of channels

3

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

4

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

12

GBW (typ) (MHz)

280

BW at Acl (MHz)

280

Acl, min spec gain (V/V)

1

Slew rate (typ) (V/µs)

2100

Vn at flatband (typ) (nV√Hz)

1.7

Vn at 1 kHz (typ) (nV√Hz)

1.7

Iq per channel (typ) (mA)

5.1

Vos (offset voltage at 25°C) (max) (mV)

3

Rail-to-rail

No

Features

Shutdown

Rating

Catalog

Operating temperature range (°C)

-40 to 85

CMRR (typ) (dB)

56

Input bias current (max) (pA)

35000000

Offset drift (typ) (µV/°C)

20

Iout (typ) (mA)

190

2nd harmonic (dBc)

70

3rd harmonic (dBc)

74

Frequency of harmonic distortion measurement (MHz)

5

SSOP (DBQ)

16

29.4 mm² (4.9 mm × 6 mm)

SOIC (D)

16

59.4 mm² (9.9 mm × 6 mm)

FLEXIBLE SUPPLY RANGE:
+5V to +12V Single-Supply
±2.5V to ±6V Dual Supply
UNITY-GAIN STABLE: 280MHz (G = 1)
HIGH OUTPUT CURRENT: 190mA
OUTPUT VOLTAGE SWING: ±4.0V
HIGH SLEW RATE: 2100V/µs
LOW SUPPLY CURRENT: 5.1mA/ch
LOW DISABLED CURRENT: 150µA/ch
IMPROVED HIGH-FREQUENCY PINOUT
WIDEBAND +5V OPERATION: 190MHz (G = +2)
APPLICATIONS
- RGB AMPLIFIERS
- WIDEBAND INA
- BROADBAND VIDEO BUFFERS
- HIGH-SPEED IMAGING CHANNELS
- PORTABLE INSTRUMENTS
- ADC BUFFERS
- ACTIVE FILTERS
- CABLE DRIVERS

All trademarks are the property of their respective owners.

FLEXIBLE SUPPLY RANGE:
+5V to +12V Single-Supply
±2.5V to ±6V Dual Supply
UNITY-GAIN STABLE: 280MHz (G = 1)
HIGH OUTPUT CURRENT: 190mA
OUTPUT VOLTAGE SWING: ±4.0V
HIGH SLEW RATE: 2100V/µs
LOW SUPPLY CURRENT: 5.1mA/ch
LOW DISABLED CURRENT: 150µA/ch
IMPROVED HIGH-FREQUENCY PINOUT
WIDEBAND +5V OPERATION: 190MHz (G = +2)
APPLICATIONS
- RGB AMPLIFIERS
- WIDEBAND INA
- BROADBAND VIDEO BUFFERS
- HIGH-SPEED IMAGING CHANNELS
- PORTABLE INSTRUMENTS
- ADC BUFFERS
- ACTIVE FILTERS
- CABLE DRIVERS

All trademarks are the property of their respective owners.

The OPA3691 sets a new level of performance for broadband, triple current-feedback op amps. Operating on a very low 5.1mA/ch supply current, the OPA3691 offers a slew rate and output power normally associated with a much higher supply current. A new output stage architecture delivers a high output current with minimal voltage headroom and crossover distortion. This gives exceptional single-supply operation. Using a single +5V supply, the OPA3691 can deliver a 1V to 4V output swing with over 120mA drive current and 150MHz bandwidth. This combination of features makes the OPA3691 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The OPA3691‘s low 5.1mA/ch supply current is precisely trimmed at 25°C. This trim, along with low drift over temperature, ensures lower maximum supply current than competing products. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA3691 supply current drops to less than 150µA/ch while the output goes into a high impedance state. This feature may be used for power savings.

The OPA3691 sets a new level of performance for broadband, triple current-feedback op amps. Operating on a very low 5.1mA/ch supply current, the OPA3691 offers a slew rate and output power normally associated with a much higher supply current. A new output stage architecture delivers a high output current with minimal voltage headroom and crossover distortion. This gives exceptional single-supply operation. Using a single +5V supply, the OPA3691 can deliver a 1V to 4V output swing with over 120mA drive current and 150MHz bandwidth. This combination of features makes the OPA3691 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver.

The OPA3691‘s low 5.1mA/ch supply current is precisely trimmed at 25°C. This trim, along with low drift over temperature, ensures lower maximum supply current than competing products. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA3691 supply current drops to less than 150µA/ch while the output goes into a high impedance state. This feature may be used for power savings.

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OPA691

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具有禁用功能的宽带电流反馈运算放大器 Single-channel variant

技术文档

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顶层文档	类型	标题	格式选项	下载最新的英语版本		日期
*	数据表	Triple Wideband, Current-Feedback Operational Amplifier With Disable 数据表 (Rev. E)				2008-7-2
	技术文章	3 common questions when designing with high-speed amplifiers	PDF \| HTML			2020-7-17
	电子书	The Signal e-book: 有关运算放大器设计主题的博客文章汇编	PDF \| HTML	英语版	PDF \| HTML	2018-1-31
	用户指南	DEM-OPA-SSOP-3A User's Guide (Rev. A)				2006-6-20
	用户指南	DEM-OPA-SO-3A User's Guide (Rev. A)				2006-6-20
	模拟设计期刊	Expanding the usability of current-feedback amplifiers				2005-2-28
	模拟设计期刊	Active filters using current-feedback amplifiers				2005-2-25
	应用手册	Noise Analysis for High Speed Op Amps (Rev. A)				2005-1-17
	应用手册	Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance				2004-4-28
	应用手册	Current Feedback Amplifiers: Review, Stability Analysis, and Applications				2000-11-20

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DEM-OPA-SO-3A — 采用 SO-16 封装的三路运算放大器评估模块

The DEM-OPA-SO-3A demonstration fixture helps designers evaluate the operation and performance of TI's triple, high speed, wideband operational amplifiers with disable. This unpopulated PC board (PCB) is compatible with products offered in the 16-lead SOIC (D) package with flow-through pin-out.

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