제품 상세 정보

Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 1300 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 36 Features Cost Optimized, Low power, Small Size CMRR (min) (dB) 86 Iq (typ) (mA) 0.11 Bandwidth at min gain (typ) (MHz) 0.1 Gain error (±) (max) (%) 0.1 Operating temperature range (°C) -40 to 125 Rating Catalog Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) 0.015 Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 3.2
Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 1.8 Input offset (±) (max) (µV) 1300 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 36 Features Cost Optimized, Low power, Small Size CMRR (min) (dB) 86 Iq (typ) (mA) 0.11 Bandwidth at min gain (typ) (MHz) 0.1 Gain error (±) (max) (%) 0.1 Operating temperature range (°C) -40 to 125 Rating Catalog Output swing headroom (to negative supply) (typ) (V) 0.015 Output swing headroom (to positive supply) (typ) (V) 0.015 Input common mode headroom (to negative supply) (typ) (V) 0 Input common mode headroom (to positive supply) (typ) (V) 0 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 3.2
WSON (DSG) 8 4 mm² 2 x 2
  • Fixed gain of 10V/V instrumentation amp with configurable reference amp
  • INA performance for 10-bit to 14-bit systems
    • CMRR: 95 dB (typical)
    • Gain error: 0.015% (typical)
    • Bandwidth: 100 kHz (typical)
  • Reference amp can be used for:
    • External DC error calibration with servo loop
    • Providing buffered voltage of external circuits
    • Filtering or adjustment of reference voltage
  • Ultra-small package option (2mm x 2mm)
  • Drives 1 nF with under 10% overshoot (typical)
  • Optimized quiescent current: 110 µA (typical)
  • Supply range: 1.8 V (±0.9 V) to 5.5 V (±2.75 V)
  • Specified temperature range: –40°C to 125°C
  • Fixed gain of 10V/V instrumentation amp with configurable reference amp
  • INA performance for 10-bit to 14-bit systems
    • CMRR: 95 dB (typical)
    • Gain error: 0.015% (typical)
    • Bandwidth: 100 kHz (typical)
  • Reference amp can be used for:
    • External DC error calibration with servo loop
    • Providing buffered voltage of external circuits
    • Filtering or adjustment of reference voltage
  • Ultra-small package option (2mm x 2mm)
  • Drives 1 nF with under 10% overshoot (typical)
  • Optimized quiescent current: 110 µA (typical)
  • Supply range: 1.8 V (±0.9 V) to 5.5 V (±2.75 V)
  • Specified temperature range: –40°C to 125°C

INA351A is a fixed gain of 10 instrumentation amplifier with a configurable reference amplifier in a small package. This instrumentation amp (INA) is built with precision-matched resistors to achieve excellent CMRR and gain error performance in a small, low-cost form factor. This makes INA351A a great solution to replace discrete INA implementations to achieve higher performance and more compact designs with minimal impact to bill of materials (BOM) costs.

The integrated, configurable reference amplifier can be used as a buffer for external use or as part of a closed-loop calibration circuit to achieve better DC precision. The closed-loop calibration can be accomplished by implementing a servo loop amplifier to calibrate DC errors from sensors (like offset, offset drift and so forth) at the INA output when the INA input signal is at a slightly higher frequency than DC depending on the application.

INA351A achieves 86 dB of minimum CMRR, an accurate 0.1% of maximum gain error and only consumes a maximum of 135 µA quiescent current at room temperature. The INA can directly drive sub-1 kHz, 10-bit to 14-bit, delta-sigma analog-to-digital converters (ADC) without an ADC driver, making it a great choice for portable, battery-powered medical applications like electrocardiograms or wearable health monitors.

INA351A is a fixed gain of 10 instrumentation amplifier with a configurable reference amplifier in a small package. This instrumentation amp (INA) is built with precision-matched resistors to achieve excellent CMRR and gain error performance in a small, low-cost form factor. This makes INA351A a great solution to replace discrete INA implementations to achieve higher performance and more compact designs with minimal impact to bill of materials (BOM) costs.

The integrated, configurable reference amplifier can be used as a buffer for external use or as part of a closed-loop calibration circuit to achieve better DC precision. The closed-loop calibration can be accomplished by implementing a servo loop amplifier to calibrate DC errors from sensors (like offset, offset drift and so forth) at the INA output when the INA input signal is at a slightly higher frequency than DC depending on the application.

INA351A achieves 86 dB of minimum CMRR, an accurate 0.1% of maximum gain error and only consumes a maximum of 135 µA quiescent current at room temperature. The INA can directly drive sub-1 kHz, 10-bit to 14-bit, delta-sigma analog-to-digital converters (ADC) without an ADC driver, making it a great choice for portable, battery-powered medical applications like electrocardiograms or wearable health monitors.

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* Data sheet INA351A - Low Power, 1.8-V to 5.5-V Small-Size Instrumentation Amplifier with Configurable Reference Amplifier datasheet PDF | HTML 2023/06/12

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SMALL-AMP-DIP-EVM은 여러 업계 표준 소형 패키지와 빠르고 쉬운 인터페이스를 통해 소형 패키지 연산 증폭기 프로토타입 제작 속도를 높여줍니다. SMALL-AMP-DIP-EVM은 DPW-5(X2SON), DSG-8(WSON), DCN-8(SOT), DDF-8(SOT), RUG-10(X2QFN), RUC-14(X2QFN), RGY-14(VQFN) 및 RTE-16(WQFN)을 포함한 8가지 소형 패키지 옵션을 지원합니다.

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시뮬레이션 모델

INA351A PSpice Reference Design

SBOMCE8.ZIP (7 KB) - PSpice Model
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INA351A TINA-TI Reference Design

SBOMCE7.TSC (48 KB) - TINA-TI Reference Design
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INA351A TINA-TI SPICE Model

SBOMCE9.ZIP (7 KB) - TINA-TI Spice Model
계산 툴

ANALOG-ENGINEER-CALC PC software analog engineer's calculator

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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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 — 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 (...)
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WSON (DSG) 8 Ultra Librarian

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