OPA855

現行

具雙極輸入的 8 GHz 增益頻寬產品、去補償轉阻放大器

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產品規格表

document-pdfAcrobat OPA855 8GHz Gain Bandwidth Product, Gain of 7V/V Stable, Bipolar Input Amplifier datasheet (Rev. D) (英文) PDF | HTML

OPA855

現行

立即訂購

產品詳細資料

Architecture

Voltage FB

Number of channels

1

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

3.3

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

5.25

GBW (typ) (MHz)

8000

BW at Acl (MHz)

2500

Acl, min spec gain (V/V)

7

Slew rate (typ) (V/µs)

2750

Vn at flatband (typ) (nV√Hz)

0.98

Vn at 1 kHz (typ) (nV√Hz)

2.8

Iq per channel (typ) (mA)

17.8

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

1.5

Rail-to-rail

No

Features

Decompensated, Shutdown

Rating

Catalog

Operating temperature range (°C)

-40 to 125

CMRR (typ) (dB)

100

Input bias current (max) (pA)

5000000

Offset drift (typ) (µV/°C)

0.5

Iout (typ) (mA)

80

2nd harmonic (dBc)

90

3rd harmonic (dBc)

86

Frequency of harmonic distortion measurement (MHz)

10

Architecture

Voltage FB

Number of channels

1

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

3.3

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

5.25

GBW (typ) (MHz)

8000

BW at Acl (MHz)

2500

Acl, min spec gain (V/V)

7

Slew rate (typ) (V/µs)

2750

Vn at flatband (typ) (nV√Hz)

0.98

Vn at 1 kHz (typ) (nV√Hz)

2.8

Iq per channel (typ) (mA)

17.8

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

1.5

Rail-to-rail

No

Features

Decompensated, Shutdown

Rating

Catalog

Operating temperature range (°C)

-40 to 125

CMRR (typ) (dB)

100

Input bias current (max) (pA)

5000000

Offset drift (typ) (µV/°C)

0.5

Iout (typ) (mA)

80

2nd harmonic (dBc)

90

3rd harmonic (dBc)

86

Frequency of harmonic distortion measurement (MHz)

10

WSON (DSG)

8

4 mm² (2 mm × 2 mm)

DIESALE (Y)

—

See data sheet mm² (— mm × — mm)

High gain bandwidth product: 8GHz
Decompensated, gain ≥ 7V/V (stable)
Low input voltage noise: 0.98nV/√Hz
Slew rate: 2750V/µs
Low Input capacitance:
- Common-mode: 0.6pF
- Differential: 0.2pF
Wide input common-mode range:
- 0.4V from positive supply
- 1.1V from negative supply
3VPP total output swing
Supply voltage range: 3.3V to 5.25V
Quiescent current: 17.8mA
Package: 8-pin WSON
- Bare die
Temperature range: –40°C to +125°C

High gain bandwidth product: 8GHz
Decompensated, gain ≥ 7V/V (stable)
Low input voltage noise: 0.98nV/√Hz
Slew rate: 2750V/µs
Low Input capacitance:
- Common-mode: 0.6pF
- Differential: 0.2pF
Wide input common-mode range:
- 0.4V from positive supply
- 1.1V from negative supply
3VPP total output swing
Supply voltage range: 3.3V to 5.25V
Quiescent current: 17.8mA
Package: 8-pin WSON
- Bare die
Temperature range: –40°C to +125°C

The OPA855 is a wideband, low-noise operational amplifier with bipolar inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 8GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths at transimpedance gains of up to tens of kilohms.

The following graph shows the bandwidth and noise performance of the OPA855 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from dc to the calculated frequency (f) on the left scale. The OPA855 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA855 is optimized to operate in optical time-of-flight (ToF) systems where the OPA855 is used with time-to-digital converters, such as the TDC7201. Use the OPA855 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as the THS4541 or LMH5401 devices.

The OPA855 is a wideband, low-noise operational amplifier with bipolar inputs for wideband transimpedance and voltage amplifier applications. When the device is configured as a transimpedance amplifier (TIA), the 8GHz gain bandwidth product (GBWP) enables high closed-loop bandwidths at transimpedance gains of up to tens of kilohms.

The following graph shows the bandwidth and noise performance of the OPA855 as a function of the photodiode capacitance when the amplifier is configured as a TIA. The total noise is calculated along a bandwidth range extending from dc to the calculated frequency (f) on the left scale. The OPA855 package has a feedback pin (FB) that simplifies the feedback network connection between the input and the output.

The OPA855 is optimized to operate in optical time-of-flight (ToF) systems where the OPA855 is used with time-to-digital converters, such as the TDC7201. Use the OPA855 to drive a high-speed analog-to-digital converter (ADC) in high-resolution LIDAR systems with a differential output amplifier, such as the THS4541 or LMH5401 devices.

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重要文件	類型	標題	格式選項	下載最新的英文版本
*	資料表	OPA855 8GHz Gain Bandwidth Product, Gain of 7V/V Stable, Bipolar Input Amplifier datasheet (Rev. D)	PDF \| HTML		2025/5/1
	白皮書	汽車光達簡介 (Rev. D)	PDF \| HTML	Download English Version (Rev.D)	2025/4/24
	Circuit design	Transimpedance amplifier circuit. (Rev. B)	PDF \| HTML		2024/9/26
	Application brief	LiFi: TI High-Speed Products for Optical Wireless Communication	PDF \| HTML		2023/8/7
	證書	OPA855DSGEVM EU Declaration of Conformity (DoC)			2023/6/21
	Application brief	Time of Flight and LIDAR - Optical Front End Design (Rev. A)	PDF \| HTML		2022/4/29
	應用說明	High Speed ADCs and Amplifiers for Flow Cytometry Applications			2020/10/12
	技術文章	3 common questions when designing with high-speed amplifiers	PDF \| HTML		2020/7/17
	類比設計期刊	Maximizing the dynamic range of analog fronts ends having a transimpedance amp			2019/6/14
	類比設計期刊	Easily improve the performance of analog circuits with decompensated amplifiers (Rev. A)			2019/5/21
	技術文章	What you need to know about transimpedance amplifiers – part 2	PDF \| HTML		2016/9/1
	技術文章	What you need to know about transimpedance amplifiers – part 1	PDF \| HTML		2016/5/6
	技術文章	SPICE it up: How to extract the input capacitance of an op amp (part 3)	PDF \| HTML		2016/3/21
	應用說明	AN-1604 Decompensated Operational Amplifiers (Rev. B)			2013/5/1
	應用說明	AN-1803 Design Considerations for a Transimpedance Amplifier (Rev. A)			2013/5/1
	應用說明	Transimpedance Considerations for High-Speed Operational Amplifiers			2009/11/22
	應用說明	Compensate Transimpedance Amplifiers Intuitively (Rev. A)			2005/3/30
	類比設計期刊	Using a decompensated op amp for improved performance			2005/3/11

設計與開發

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開發板

DEM-OPA-WSON8-EVM — 適用於 8 接腳 WSON (DSG) 封裝單通道運算放大器的未組裝評估模組

DEM-OPA-WSON8-EVM 是用於 DSG（8 接腳 WSON）封裝中單通道運算放大器的未組裝評估模組。此 EVM 專為高速性能規格而設計，與增益頻寬超過 1GHz 的放大器相容。

使用指南: PDF

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開發板

OPA855DSGEVM — OPA855DSG 評估模組

OPA855DSG EVM 是採用 DSG (8 針腳 WSON) 封裝之單 OPA855 的評估模組。OPA855DSG EVM 可快速展示放大器的功能性和多元用途。EVM 可透過板載連接器連接至電源、訊號源和測試儀器。預設放大器配置為 7 配置和分離電源的非反相增益。可輕鬆為其他增益及單電源操作進行配置。