OPA818

활성

2.7GHz, 13V, 비보상 7V/V, FET 입력 연산 증폭기

제품 상세 정보

Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 2700 BW at Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 1400 Vn at flatband (typ) (nV√Hz) 2.2 Vn at 1 kHz (typ) (nV√Hz) 8.5 Iq per channel (typ) (mA) 27.7 Vos (offset voltage at 25°C) (max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 90 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 55 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 Frequency of harmonic distortion measurement (MHz) 1
Architecture FET / CMOS Input, Voltage FB Number of channels 1 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 6 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 13 GBW (typ) (MHz) 2700 BW at Acl (MHz) 765 Acl, min spec gain (V/V) 7 Slew rate (typ) (V/µs) 1400 Vn at flatband (typ) (nV√Hz) 2.2 Vn at 1 kHz (typ) (nV√Hz) 8.5 Iq per channel (typ) (mA) 27.7 Vos (offset voltage at 25°C) (max) (mV) 1.25 Rail-to-rail No Features Decompensated Rating Catalog Operating temperature range (°C) -40 to 125 CMRR (typ) (dB) 90 Input bias current (max) (pA) 25 Offset drift (typ) (µV/°C) 3 Iout (typ) (mA) 55 2nd harmonic (dBc) -84 3rd harmonic (dBc) -106 Frequency of harmonic distortion measurement (MHz) 1
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8 WSON (DRG) 8 9 mm² 3 x 3
  • High speed:
    • Gain-bandwidth product (GBWP): 2.7GHz
    • Bandwidth (G = 7V/V): 765MHz
    • Large-signal bandwidth (2VPP): 400MHz
    • Slew rate: 1400V/µs
  • Decompensated gain: 7V/V stable
  • Low noise:
    • Input voltage noise: 2.2nV/√Hz
    • Input current noise: 3fA/√Hz (f = 10kHz)
  • Input bias current: 4pA (typical)
  • Low input capacitance:
    • Common-mode: 1.9pF
    • Differential mode: 0.5pF
  • Low distortion (G = 7V/V, RL = 1kΩ, VO = 2VPP):
    • HD2, HD3 at 1MHz: –104dBc, –108dBc
    • HD2, HD3 at 50MHz: –57dBc, –72dBc
  • Wide supply range: 6V to 13V
  • Output swing: 8VPP (VS = 10V)
  • Supply current: 27.7mA
  • Shutdown supply current: 27µA
  • Performance upgrade to OPA657
  • High speed:
    • Gain-bandwidth product (GBWP): 2.7GHz
    • Bandwidth (G = 7V/V): 765MHz
    • Large-signal bandwidth (2VPP): 400MHz
    • Slew rate: 1400V/µs
  • Decompensated gain: 7V/V stable
  • Low noise:
    • Input voltage noise: 2.2nV/√Hz
    • Input current noise: 3fA/√Hz (f = 10kHz)
  • Input bias current: 4pA (typical)
  • Low input capacitance:
    • Common-mode: 1.9pF
    • Differential mode: 0.5pF
  • Low distortion (G = 7V/V, RL = 1kΩ, VO = 2VPP):
    • HD2, HD3 at 1MHz: –104dBc, –108dBc
    • HD2, HD3 at 50MHz: –57dBc, –72dBc
  • Wide supply range: 6V to 13V
  • Output swing: 8VPP (VS = 10V)
  • Supply current: 27.7mA
  • Shutdown supply current: 27µA
  • Performance upgrade to OPA657

The OPA818 is a decompensated, voltage-feedback operational amplifier for high-speed and wide-dynamic-range applications. The OPA818 has a low-noise JFET input stage that combines high gain-bandwidth with a wide supply range from 6V to 13V. The fast slew rate (1400V/µs) provides high, large-signal bandwidth and low distortion. This amplifier is manufactured using TI’s proprietary, high-speed, silicon-germanium (SiGe) process to achieve significant performance improvements over other high-speed, FET-input amplifiers.

The OPA818 is an extremely versatile, wideband TIA photodiode amp for use in optical test and communication equipment, and many medical, scientific, and industrial instruments. The OPA818 showcases a 2.7GHz GBWP, low 2.4pF total input capacitance, and 2.2nV/√Hz input noise. The OPA818 achieves over 85MHz signal bandwidth in a TIA configuration with 20kΩ TIA gain (RF) and 0.5pF photodiode capacitance (CD) with wide output swings. The low-noise architecture with picoampere of input bias current is also an excellent choice for test and measurement applications. Though typically stable in gains ≥ 7V/V, the OPA818 is designed for use in applications with lower gains by applying noise-gain shaping techniques.

The OPA818 is available in an 5-pin SOT-23 package and an 8-lead WSON package with an exposed thermal pad for heat dissipation. This device is specified for operation over the industrial temperature range of –40°C to +85°C.

The OPA818 is a decompensated, voltage-feedback operational amplifier for high-speed and wide-dynamic-range applications. The OPA818 has a low-noise JFET input stage that combines high gain-bandwidth with a wide supply range from 6V to 13V. The fast slew rate (1400V/µs) provides high, large-signal bandwidth and low distortion. This amplifier is manufactured using TI’s proprietary, high-speed, silicon-germanium (SiGe) process to achieve significant performance improvements over other high-speed, FET-input amplifiers.

The OPA818 is an extremely versatile, wideband TIA photodiode amp for use in optical test and communication equipment, and many medical, scientific, and industrial instruments. The OPA818 showcases a 2.7GHz GBWP, low 2.4pF total input capacitance, and 2.2nV/√Hz input noise. The OPA818 achieves over 85MHz signal bandwidth in a TIA configuration with 20kΩ TIA gain (RF) and 0.5pF photodiode capacitance (CD) with wide output swings. The low-noise architecture with picoampere of input bias current is also an excellent choice for test and measurement applications. Though typically stable in gains ≥ 7V/V, the OPA818 is designed for use in applications with lower gains by applying noise-gain shaping techniques.

The OPA818 is available in an 5-pin SOT-23 package and an 8-lead WSON package with an exposed thermal pad for heat dissipation. This device is specified for operation over the industrial temperature range of –40°C to +85°C.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
OPA817 활성 800MHz, 고정밀 유니티 게인 안정 FET 입력 연산 증폭기 High-voltage FET input, unity-gain stable and higher precision (0.2 mV, 1 uV/C)

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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5개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet OPA818 2.7GHz, High-Voltage, FET-Input, Low-Noise, Operational Amplifier datasheet (Rev. B) PDF | HTML 2025/12/09
Product overview High Speed Amplifiers for In-Vitro Diagnostics (IVD) Analog Front End PDF | HTML 2025/04/10
Application note High Speed ADCs and Amplifiers for Flow Cytometry Applications 2020/10/12
Technical article 3 common questions when designing with high-speed amplifiers PDF | HTML 2020/07/17
Application note Noise Analysis for High Speed Op Amps (Rev. A) 2005/01/17

설계 및 개발

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평가 보드

OPA818DRGEVM — OPA818 평가 모듈

OPA818DRG는 DRG(8핀 WSON) 패키지의 단일 OPA818을 위한 평가 모듈(EVM)입니다. OPA818DRG EVM은 증폭기의 기능과 다기능성을 쉽게 시연할 수 있도록 설계되었습니다. EVM은 온보드 커넥터를 사용하여 전원, 신호 소스 및 테스트 기기에 연결할 수 있습니다. 기본 증폭기 구성은 7 구성 및 분할 전원의 비반전 게인입니다. 이 EVM은 다른 게인 및 단일 공급 작동용으로 간편하게 구성할 수 있습니다.
사용 설명서: PDF
TI.com에서 구매할 수 없음
시뮬레이션 모델

OPA818 TINA-TI Spice Model (Rev. A)

SBOMAZ1A.TSM (14 KB) - TINA-TI Spice Model
시뮬레이션 모델

OPA818 Unencrypted TINA-TI Reference Design Package (Rev. A)

SBOMB21A.TSC (172 KB) - TINA-TI Reference Design
시뮬레이션 모델

PSPICE Circuit Containing OPA818 Model (Rev. B)

SBOMB74B.ZIP (31 KB) - PSpice Model
계산 툴

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The voltage divider calculation tool (VOLT-DIVIDER-CALC) quickly determines a set of resistors for a voltage divider. This KnowledgeBase JavaScript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. VOLT-DIVIDER-CALC can also be used to (...)
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PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 착수하기 (...)
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TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
사용 설명서: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
SOT-23 (DBV) 5 Ultra Librarian
WSON (DRG) 8 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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