OPA4192IPW - 36V Quad Precision RRIO Op Amp | Texas Instruments
부품 번호: OPA4192IPW ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.05 | $50.50 |
| 100 | $4.49 | $449.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.42 | $3,420.00 |
| 3,000 | $2.95 | $8,850.00 |
OPA4192IPW 개요
An operational amplifier (op amp) is a high-gain DC-coupled electronic voltage amplifier with differential inputs and a single-ended output that uses external feedback components to set transfer characteristics. Precision op amps form a sub-category optimized for low offset, low drift, low bias current, and low noise, and they sit within the broader hierarchy: operational amplifier -> analog amplifier -> linear IC -> power management & signal chain. The OPAx192 e-trim family improves offset and drift during final test, eliminating the need for the user to null the offset externally.
Key differentiating specifications include 5.5 nV/√Hz input voltage noise density at 1 kHz, 1.8 mV maximum input offset voltage over temperature, 5 pA typical input bias current, 1 mA quiescent current per channel, and a robust 36V absolute-maximum supply rating. The RRIO topology swings within a few millivolts of both rails on input and output, simplifying single-supply designs and maximizing dynamic range when powering low-voltage ADCs from higher analog rails.
The OPA4192 uses TI's e-trim trimming process combined with a CMOS input stage, providing low input bias current (5 pA typical) and low noise without the drawbacks of traditional JFET or bipolar input stages. Its MUX-friendly input architecture prevents input over-voltage back-flow to the supply when the input exceeds the rails, allowing the device to sit on the same signal bus as switched-capacitor multiplexers without interaction.
Typical applications include precision analog input modules for industrial PLCs, multi-channel data acquisition front ends, instrumentation signal conditioning, active filters and buffers for test & measurement equipment, and transducer amplifiers for pressure, strain-gauge, and thermocouple sensors. The quad channel count is well suited for bridge-type sensors that need excitation buffering plus three instrument amplifiers per channel, or for four-channel analog input modules on factory-automation backplanes.
Design considerations include adequate PCB thermal relief for 36V operation, input protection when the source impedance is high, and supply decoupling within 5 mm of each supply pin. The MUX-friendly input eliminates the need for additional series input resistors in many multiplexed applications, simplifying the BOM and reducing board area.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a typical DigiKey or Mouser product page, giving engineers a one-stop technical summary for the OPA4192IPW.
드롭인 대체품: OPA4192IPW — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: OPA4192IPW (동일 폼 팩터 및 풋프린트) — 차이점: Amplifier Type, Package, Number of Channels, Operating Temperature Range, Slew Rate.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
OPA4192IPWR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
OPA4191IPWR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
OPA4192IPWT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
OPA4192ID
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
OPA4140AIPW
✅ 드롭인✓ 재고 있음
$5.2 / 개
데이터시트 보기 →OPA2277UA
✅ 드롭인✓ 재고 있음
$2.95 / 개
데이터시트 보기 →OPA4192IPW 최대 정격 & 전기적 특성
| Manufacturer | Texas Instruments |
| Series | OPAx192 (e-trim) |
| Number of Channels | 4 (quad) |
| Amplifier Type | Precision, Low-Noise, Low-Iq |
| 토폴로지 | Rail-to-Rail Input / Output (RRIO) |
| Supply Voltage Range (Single Supply) | 4.5 V to 36 V |
| Supply Voltage Range (Dual Supply) | ±4 V to ±18 V |
| 동작 온도 범위 | -40 °C to +125 °C |
| Gain Bandwidth Product (GBP) | 10 MHz |
| Slew Rate | 20 V/µs |
| Input Offset Voltage (typical) | ±5 µV |
| Input Bias Current (typical) | 5 pA |
| Input Voltage Noise Density | 5.5 nV/√Hz at 1 kHz |
| Quiescent Current per Channel | 1 mA (typical) |
| 출력 유형 | Rail-to-Rail |
| 패키지 | TSSOP-14 (PW) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
OPA4192IPW 핀 구성
| 핀 1 | OUT_A — Output of channel A |
| 핀 2 | -IN_A — Inverting input of channel A |
| 핀 3 | +IN_A — Non-inverting input of channel A |
| 핀 4 | V- — Negative supply voltage |
| 핀 5 | +IN_B — Non-inverting input of channel B |
| 핀 6 | -IN_B — Inverting input of channel B |
| 핀 7 | OUT_B — Output of channel B |
| 핀 8 | OUT_C — Output of channel C |
| 핀 9 | -IN_C — Inverting input of channel C |
| 핀 10 | +IN_C — Non-inverting input of channel C |
| 핀 11 | V+ — Positive supply voltage |
| 핀 12 | +IN_D — Non-inverting input of channel D |
| 핀 13 | -IN_D — Inverting input of channel D |
| 핀 14 | OUT_D — Output of channel D |
일반적인 애플리케이션
OPA4192IPW 적합 용도: 6 애플리케이션s: Industrial Analog Input Modules, Precision Data Acquisition Front End, Sensor Signal Conditioning, Active Filters and Signal Processing, Test and Measurement Instrumentation, Medical Monitoring and Diagnostic Equipment.
Industrial Analog Input Modules
The OPA4192IPW is ideal for industrial 4-20 mA analog input modules thanks to its 36V supply tolerance and 5.5 nV/√Hz noise density. Four channels in one TSSOP-14 footprint support a complete single-ended or differential input card: each channel can buffer a 4-20 mA sense resistor into a 24-bit ADC, while rail-to-rail input handles common-mode voltages from below ground to V+. The MUX-friendly input eliminates interaction with upstream protection TVS networks, and 1 mA quiescent current per channel keeps total supply draw under 5 mA even on a quad channel module.
추천
Precision Data Acquisition Front End
In multi-channel data acquisition systems the OPA4192IPW provides four low-noise buffers between sensors and the ADC. Its 5.5 nV/√Hz input noise density preserves the dynamic range of 18-24 bit ADCs, and the 10 MHz GBP allows accurate sampling of signals up to 100 kHz without distortion. The rail-to-rail output swings within tens of millivolts of the rails, maximizing usable ADC input span on a single 5V or ±15V supply, while ±5 µV typical offset removes the need for system calibration on many channels.
추천
Sensor Signal Conditioning
The OPA4192IPW's 5 pA typical input bias current makes it a strong choice for conditioning high-impedance sensors such as pH probes, photodiodes, and piezoelectric sensors. With four channels in TSSOP-14, the part fits compact sensor-interface boards where each channel buffers or amplifies a separate transducer. Low 1/f noise and e-trim low offset contribute to clean DC sensor readings, while the 36V supply tolerance accommodates bridge excitation voltages on strain-gauge and load-cell front ends.
추천
Active Filters and Signal Processing
The OPA4192IPW's 10 MHz GBP and 20 V/µs slew rate enable Sallen-Key and multiple-feedback active filter designs up to 100 kHz. Four matched channels allow designers to build cascaded low-pass, high-pass, and band-pass stages on a single chip, preserving channel-to-channel gain matching better than discrete op amps. The rail-to-rail output lets filter outputs drive SAR ADC inputs directly, while low distortion preserves audio-band fidelity in equalizer and crossover networks.
추천
Test and Measurement Instrumentation
Bench DMMs, oscilloscope front ends, and laboratory signal generators benefit from the OPA4192IPW's combination of wide supply range and low noise. Four channels per package simplify multi-range signal conditioning paths, and the e-trim offset allows instrument designers to skip calibration potentiometers on most channels. The 36V supply handles ±15V analog signals common in legacy test equipment, while the 1 mA per-channel quiescent current keeps total board power within handheld instrument budgets.
추천
Medical Monitoring and Diagnostic Equipment
Patient monitoring devices such as ECG, EEG, and pulse-oximetry front ends use the OPA4192IPW to buffer and amplify low-level bioelectric signals. The 5 pA input bias current minimizes DC leakage into patient-connected electrodes, while 5.5 nV/√Hz noise density preserves ECG signal clarity. Four channels per TSSOP-14 footprint match the four-electrode ECG configuration, and rail-to-rail input tolerates the wide DC offset typical of bioelectric signals. The -40 °C to +125 °C operating range covers clinical and mobile-health environments.
추천
추천 제품 요약
엔지니어링 참조 데이터: OPA4192IPW — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | OPA4192IPWR | OPA4191IPWR | OPA4192IPWT | OPA4140AIPW |
|---|---|---|---|---|---|
| Package | TSSOP-14 (PW) | TSSOP-14 (PW) | TSSOP-14 (PW) | TSSOP-14 (PW) | TSSOP-14 (PW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 | 4 |
| Supply Voltage Range (single) | 4.5V to 36V | 4.5V to 36V | 4.5V to 36V | 4.5V to 36V | 4.5V to 36V |
| Gain Bandwidth Product | 10 MHz | 10 MHz | 5 MHz | 11 MHz | 10 MHz |
| Slew Rate | 20 V/µs | 20 V/µs | 5 V/µs | 20 V/µs | 20 V/µs |
| Input Offset Voltage (typ) | ±5 µV | ±5 µV | ±25 µV | ±5 µV | ±5 µV |
| Input Voltage Noise Density | 5.5 nV/√Hz | 5.5 nV/√Hz | 14 nV/√Hz | 5.1 nV/√Hz | 5.5 nV/√Hz |
| Quiescent Current per Channel | 1 mA | 1 mA | 0.65 mA | 1.4 mA | 1 mA |
주요 차별점
- Higher bandwidth and slew rate at same pin footprint (vs OPA4191IPWR)
- Lower voltage noise density than OPAx191 family (vs OPA4191IPWR)
- Lower quiescent current than OPA4140 (vs OPA4140AIPW)
설계 노트
Place a 0.1 µF X7R ceramic decoupling capacitor within 5 mm of each OPA4192 supply pin (V+ pin 11 and V- pin 4), plus a 10 µF bulk tantalum or ceramic capacitor near the package. The TSSOP-14 thermal pad is not connected to ground; it is not used as a heatsink and can be left floating or removed. Keep input traces short and routed away from switching converter nodes to preserve the 5.5 nV/√Hz noise floor.
The OPA4192IPW's MUX-friendly input stage eliminates back-flow current when the input exceeds the rails, allowing direct connection to a switched-capacitor MUX output without additional series resistors. For source impedances above 10 kΩ, add a small compensation capacitor (10-30 pF) across the feedback resistor to prevent oscillation. Estimated: stability is sensitive above 50 kΩ source impedance.
Do not exceed 36V on V+ versus V-; the absolute maximum is 40V but sustained operation above 36V invalidates parametric specifications and risks device damage. Avoid placing the part near heat sources, since the TSSOP-14 has limited thermal dissipation. The four channels share the same die, so loading imbalance between channels does not affect offset, but heavy output loads above 10 mA on multiple channels can shift operating temperature and drift Vos by 1 µV/°C.
규정 준수 정보
RoHS and REACH compliant per TI product page. Lead-free and halogen-free per TI materials declaration. Not AEC-Q100 qualified - choose the OPA4192-Q1 variant for automotive designs.
