TLE2425

활성

정밀 가상 접지

제품 상세 정보

Iout (typ) (A) 0.05 Vs (min) (V) 4 Vs (max) (V) 40 Operating temperature range (°C) -55 to 125 Rating Automotive, Catalog
Iout (typ) (A) 0.05 Vs (min) (V) 4 Vs (max) (V) 40 Operating temperature range (°C) -55 to 125 Rating Automotive, Catalog
SOIC (D) 8 29.4 mm² 4.9 x 6 SOP (PS) 8 48.36 mm² 6.2 x 7.8 TO-92 (LP) 3 19.136 mm² 5.2 x 3.68
  • 2.5-V Virtual Ground for 5-V/GND Analog Systems
  • High Output-Current Capability Sink or Source . . . 20 mA Typ
  • Micropower Operation . . . 170 uA Typ
  • Excellent Regulation Characteristics
    • Output Regulation
         –45 uV Typ at IO = 0 to –10 mA
         +15 uV Typ at IO = 0 to +10 mA
    • Input Regulation = 1.5 uV/V Typ
  • Low-Impedance Output . . . 0.0075 Typ
  • Macromodel Included

  • 2.5-V Virtual Ground for 5-V/GND Analog Systems
  • High Output-Current Capability Sink or Source . . . 20 mA Typ
  • Micropower Operation . . . 170 uA Typ
  • Excellent Regulation Characteristics
    • Output Regulation
         –45 uV Typ at IO = 0 to –10 mA
         +15 uV Typ at IO = 0 to +10 mA
    • Input Regulation = 1.5 uV/V Typ
  • Low-Impedance Output . . . 0.0075 Typ
  • Macromodel Included

In signal-conditioning applications using a single power source, a reference voltage is required for termination of all signal grounds. To accomplish this, engineers have typically used solutions consisting of resistors, capacitors, operational amplifiers, and voltage references. Texas Instruments has eliminated all of those components with one easy-to-use 3-terminal device. That device is the TLE2425 precision virtual ground.

Use of the TLE2425 over other typical circuit solutions gives the designer increased dynamic signal range, improved signal-to-noise ratio, lower distortion, improved signal accuracy, and easier interfacing to ADCs and DACs. These benefits are the result of combining a precision micropower voltage reference and a high-performance precision operational amplifier in a single silicon chip. It is the precision and performance of these two circuit functions together that yield such dramatic system-level performance.

The TLE2425 improves input regulation as well as output regulation and, in addition, reduces output impedance and power dissipation in a majority of virtual-ground-generation circuits. Both input regulation and load regulation exceed 12 bits of accuracy on a single 5-V system. Signal-conditioning front ends of data acquisition systems that push 12 bits and beyond can use the TLE2425 to eliminate a major source of system error.

In signal-conditioning applications using a single power source, a reference voltage is required for termination of all signal grounds. To accomplish this, engineers have typically used solutions consisting of resistors, capacitors, operational amplifiers, and voltage references. Texas Instruments has eliminated all of those components with one easy-to-use 3-terminal device. That device is the TLE2425 precision virtual ground.

Use of the TLE2425 over other typical circuit solutions gives the designer increased dynamic signal range, improved signal-to-noise ratio, lower distortion, improved signal accuracy, and easier interfacing to ADCs and DACs. These benefits are the result of combining a precision micropower voltage reference and a high-performance precision operational amplifier in a single silicon chip. It is the precision and performance of these two circuit functions together that yield such dramatic system-level performance.

The TLE2425 improves input regulation as well as output regulation and, in addition, reduces output impedance and power dissipation in a majority of virtual-ground-generation circuits. Both input regulation and load regulation exceed 12 bits of accuracy on a single 5-V system. Signal-conditioning front ends of data acquisition systems that push 12 bits and beyond can use the TLE2425 to eliminate a major source of system error.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
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3개 모두 보기
유형 직함 날짜
* Data sheet Precision Virtual Grounds datasheet (Rev. D) 2002/04/30
Application note Using References to Generate Offsets for the TLC55xx Family Data Converters (Rev. A) 2002/07/29
Application note Choosing an ADC and Op Amp for Minimum Offset 1999/10/28

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

시뮬레이션 모델

TLE2425 PSpice Model (Rev. B)

SLFJ003B.ZIP (19 KB) - PSpice Model
시뮬레이션 툴

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 (...)
시뮬레이션 툴

TINA-TI — SPICE 기반 아날로그 시뮬레이션 프로그램

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
SOIC (D) 8 Ultra Librarian
SOP (PS) 8 Ultra Librarian
TO-92 (LP) 3 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

지원 및 교육

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