OPA3691

現行

具有停用功能的三寬頻電流回饋運算放大器

立即訂購

產品規格表

document-pdfAcrobat Triple Wideband, Current-Feedback Operational Amplifier With Disable datasheet (Rev. E) (英文)

OPA3691

現行

產品規格表

立即訂購

產品詳細資料

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

現行

具有停用功能的寬頻電流回饋運算放大器 Single-channel variant

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重要文件	類型	標題	格式選項	日期
*	資料表	Triple Wideband, Current-Feedback Operational Amplifier With Disable datasheet (Rev. E)		2008/7/2
	技術文章	3 common questions when designing with high-speed amplifiers	PDF \| HTML	2020/7/17
	電子書	The Signal e-book: A compendium of blog posts on op amp design topics	PDF \| HTML	2017/3/28
	使用指南	DEM-OPA-SSOP-3A User's Guide (Rev. A)		2006/6/20
	使用指南	DEM-OPA-SO-3A User's Guide (Rev. A)		2006/6/20
	類比設計期刊	Expanding the usability of current-feedback amplifiers		2005/2/28
	類比設計期刊	Active filters using current-feedback amplifiers		2005/2/25
	應用說明	Noise Analysis for High Speed Op Amps (Rev. A)		2005/1/17
	應用說明	Stabilizing Current-Feedback Op Amps While Optimizing Circuit Performance		2004/4/28
	應用說明	Current Feedback Amplifiers: Review, Stability Analysis, and Applications		2000/11/20

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DEM-OPA-SO-3A — 適用於 SO-16 封裝的三路運算放大器評估模組

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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