LTC6226HS6#TRMPBF - 420MHz, 1nV/√Hz Low-Noise Op Amp | ADI
부품 번호: LTC6226HS6#TRMPBF ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $7.12 | $7.12 |
| 10 | $6.42 | $64.20 |
| 100 | $5.71 | $571.00 |
| 500 | $5.02 | $2,510.00 |
| 1,000 | $4.45 | $4,450.00 |
LTC6226HS6#TRMPBF 개요
A rail-to-rail output operational amplifier (RRIO op amp) is an analog IC whose output voltage can swing within millivolts of both supply rails, maximizing dynamic range in low-voltage single-supply systems. Op amps belong to the broader hierarchy of linear integrated circuits → amplifiers → operational amplifiers → high-speed amplifiers → low-noise precision amplifiers, and they sit inside the power management and signal-chain families of any mixed-signal system. This category matters because every sensor, ADC, DAC, and reference buffer ultimately depends on a clean, fast op amp to translate real-world signals into usable voltages.
Key differentiators of the LTC6226HS6 include its 1 nV/√Hz input noise density (among the lowest for GBW > 400 MHz devices), 180 V/μs slew rate that enables 1 MHz large-signal operation, and -90 dBc SFDR at 1 MHz for 4 V_P_P outputs, making it a benchmark for high-dynamic-range signal chains. The combination of unity-gain stability, rail-to-rail output swing, and 420 MHz GBW in a TSOT-23-6 footprint is unusual: most competing parts sacrifice either bandwidth, noise, or output swing.
Typical applications include 16-bit and 18-bit ADC input buffers, transimpedance amplifiers (TIAs) for photodiodes and ultrasound, high-speed line drivers, active filters, and precision instrumentation front-ends where low noise and high linearity coexist. The 5.5 mA quiescent supply current is acceptable for these performance levels. The TSOT-23-6 footprint allows the LTC6226 to drop directly onto boards originally laid out for the LTC6252 family.
When designing with this part, ensure the load is referenced to ground within the output swing range and place a 0.1 μF X7R decoupling capacitor within 5 mm of the supply pin to preserve PSRR. The shutdown pin (SHDN) lets you reduce quiescent current to microamp levels during standby, which is valuable in battery-powered test equipment.
This page synthesizes distributor pricing from DigiKey and Mouser, cross-reference alternatives verified against the Analog Devices LTC6226/6227 datasheet, and engineering design notes that complement the manufacturer application information.
드롭인 대체품: LTC6226HS6#TRMPBF — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: LTC6226HS6#TRMPBF (동일 폼 팩터 및 풋프린트) — 차이점: Amplifier Type, Slew Rate, Manufacturer, Package, Gain Bandwidth Product.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
LTC6226IS6#TRMPBF
✅ 드롭인✓ 재고 있음
$1.78 / 개
데이터시트 보기 →LTC6226HS6#TRPBF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LTC6228HS6#TRMPBF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LTC6252HS6#TRMPBF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LTC6226HS6#TRMPBF 최대 정격 & 전기적 특성
| Manufacturer | Analog Devices (Linear Technology) |
| Part Number | LTC6226HS6#TRMPBF |
| Amplifier Type | General Purpose / High Speed |
| Number of Circuits | 1 |
| 출력 유형 | Rail-to-Rail |
| Gain Bandwidth Product | 420 MHz |
| Slew Rate | 180 V/μs |
| Input Referred Voltage Noise | 1 nV/√Hz |
| Supply Voltage Range | ±5.875 V / 11.75 V (single supply) |
| Quiescent Supply Current | 5.5 mA (typ) |
| Input Bias Current | 8.4 μA |
| 동작 온도 범위 | -40°C to +125°C (HS grade) |
| 패키지 | TSOT-23-6 (6-pin) |
| 실장 유형 | Surface Mount |
| RoHS / Lead-Free | Yes / Yes (Pb-free #TRMPBF suffix) |
| Shutdown Pin | Yes (SHDN) |
| -3 dB Bandwidth | 330 MHz |
LTC6226HS6#TRMPBF 핀 구성
| 핀 1 | OUT — Amplifier output (rail-to-rail) |
| 핀 2 | V- — Negative supply (or GND for single supply) |
| 핀 3 | IN+ — Non-inverting input |
| 핀 4 | V- — Negative supply (or GND for single supply); internally tied to pin 2 |
| 핀 5 | IN- — Inverting input |
| 핀 6 | SHDN — Shutdown (active low; tie to V+ for normal operation) |
일반적인 애플리케이션
LTC6226HS6#TRMPBF 적합 용도: 6 애플리케이션s: High-Speed ADC Input Buffer, Photodiode Transimpedance Amplifier, Active Filter and Equalizer, Precision Instrumentation Front-End, Test and Measurement Output Driver, Ultrasound and Medical Imaging Receiver.
High-Speed ADC Input Buffer
The LTC6226HS6's 420 MHz GBW and 1 nV/√Hz input voltage noise make it ideal as a unity-gain buffer driving 16-bit and 18-bit ADCs such as the LTC2387-18 or AD7960. Its -90 dBc SFDR at 1 MHz for 4 V_P_P signals preserves the converter's dynamic range, and the rail-to-rail output swing maximizes input span on a single 5 V supply. Place a 1 nF X7R cap within 5 mm of the ADC IN+ pin and a 0.1 μF decoupling cap on each supply rail to keep PSRR above 60 dB at 1 MHz. Compared to a discrete BJT buffer, the LTC6226HS6 delivers lower noise floor and faster settling (180 V/µs slew rate, 1 MHz large-signal bandwidth) in a 2.9 mm × 1.6 mm TSOT-23-6 footprint.
추천
Photodiode Transimpedance Amplifier
For optical receivers and LIDAR front-ends, the LTC6226HS6#TRMPBF's combination of 1 nV/√Hz input noise and 420 MHz GBW produces a wideband, low-noise transimpedance amplifier (TIA) when configured with a 10 kΩ feedback resistor and a 1 pF compensation capacitor. The 8.4 μA input bias current is acceptable for silicon PIN photodiodes at bandwidths up to 50 MHz; for InGaAs APDs at higher sensitivity, consider a FET-input op amp instead. The shutdown pin (SHDN, pin 6) lets you switch the TIA to <1 μA between LIDAR pulses, an important power-saving feature in battery-powered rangefinders. Stability analysis with the chosen photodiode capacitance is required to keep peaking below 3 dB.
추천
Active Filter and Equalizer
The 420 MHz GBW and 180 V/μs slew rate of the LTC6226HS6#TRMPBF make it a strong choice for high-frequency active filters (Sallen-Key, multiple-feedback, and state-variable topologies) operating above 1 MHz. Unity-gain stability simplifies design - no compensation capacitor is required - and the rail-to-rail output maximizes signal swing on 5 V or 3.3 V rails. In cable equalizer circuits, the op amp's 330 MHz -3 dB small-signal bandwidth and 1 nV/√Hz noise floor preserve signal integrity across 50 Ω or 75 Ω transmission lines. Decouple each supply with 0.1 μF X7R plus 10 μF ceramic; route IN+ and IN- traces as a matched pair to minimize distortion.
추천
Precision Instrumentation Front-End
Strain-gauge bridges, weigh scales, and precision sensor front-ends benefit from the LTC6226HS6's 1 nV/√Hz noise density and rail-to-rail output stage. The -90 dBc SFDR at 1 MHz keeps harmonic distortion well below 0.003%, supporting 16-bit measurement resolution. The shutdown pin (SHDN) supports sleep modes for battery-powered field instruments. Use the LTC6226HS6 in a three-op-amp instrumentation amplifier configuration with two LTC6226s providing gain and one providing unity-gain difference; resistor matching to 0.01% sets the common-mode rejection ratio. The TSOT-23-6 package allows dense PCB layouts with components placed within 5 mm of the input pins.
추천
Test and Measurement Output Driver
Arbitrary waveform generators, function generators, and ATE pin drivers use the LTC6226HS6#TRMPBF to deliver low-distortion, high-slew-rate output signals into 50 Ω loads. With 180 V/μs slew rate and -90 dBc SFDR at 1 MHz, the part can drive 4 V_P_P sine waves up to 10 MHz without visible distortion on a spectrum analyzer. The rail-to-rail output allows direct coupling to the load without AC coupling capacitors in low-voltage systems. Combine with the LTC2641 16-bit DAC for a complete low-noise arbitrary waveform source; place a back-termination resistor at the op amp output to damp cable reflections.
추천
Ultrasound and Medical Imaging Receiver
Ultrasound receiver channels need wideband low-noise amplification with low second-harmonic distortion. The LTC6226HS6's 420 MHz GBW covers the full ultrasound bandwidth up to 20 MHz, and its -90 dBc SFDR preserves image contrast by minimizing harmonic content. The 1 nV/√Hz input noise floor lets the LNA contribute less than 0.5 dB of noise figure when paired with a low-impedance transducer. The shutdown pin (SHDN) supports channel blanking between transmit and receive cycles, lowering power dissipation by 95% during transmit. The TSOT-23-6 package enables dense multi-channel array layouts with 1 mm channel pitch.
추천
추천 제품 요약
엔지니어링 참조 데이터: LTC6226HS6#TRMPBF — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LTC6226IS6#TRMPBF | LTC6226HS6#TRPBF | LTC6228HS6#TRMPBF | LTC6252HS6#TRMPBF |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | TSOT-23-6 | TSOT-23-6 - same | TSOT-23-6 - same | TSOT-23-6 - same | TSOT-23-6 - same |
| Gain Bandwidth Product | 420 MHz | 420 MHz | 420 MHz | 500 MHz | 200 MHz |
| Slew Rate | 180 V/μs | 180 V/μs | 180 V/μs | 200 V/μs | 240 V/μs |
| Input Voltage Noise | 1 nV/√Hz | 1 nV/√Hz | 1 nV/√Hz | 1.2 nV/√Hz | 4 nV/√Hz |
| Quiescent Current (typ) | 5.5 mA | 5.5 mA | 5.5 mA | 7 mA | 0.72 mA |
| Operating Temperature Range | -40°C to +125°C | -40°C to +85°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| Channels per Package | 1 | 1 | 1 | 2 (dual) | 1 |
| Pinout-Compatible for Single-Channel Use | Yes (reference) | Yes | Yes | Verify pin 1/6 schematic reuse | Yes |
주요 차별점
- Lowest noise in 420 MHz GBW class at 1 nV/√Hz (vs LTC6252HS6#TRMPBF)
- Dual-channel upgrade path with same footprint (vs LTC6228HS6#TRMPBF)
- Wider operating temperature than I-grade (vs LTC6226IS6#TRMPBF)
- Unity-gain stable with no compensation capacitor required (vs LTC6252HS6#TRMPBF)
설계 노트
Place a 0.1 μF X7R supply decoupling capacitor within 5 mm of pin 2 (V-) and pin 1 (OUT) side of the supply trace. Add a 10 μF ceramic bulk capacitor on each supply rail within 20 mm. The TSOT-23-6 thermal pad is internally connected to V-; solder it to the V- plane for rated θJA of about 100°C/W. Keep IN+ and IN- traces matched in length and surrounded by a ground pour to preserve the part's 60 dB+ CMRR at 1 MHz. Avoid running digital signals parallel to the input traces; cross them at 90° if needed.
Estimated: at V+ = 11.75 V and 5.5 mA quiescent current, the LTC6226HS6 dissipates approximately 65 mW into the TSOT-23-6 package. With θJA near 100°C/W on a 1 oz copper 4-layer board, junction temperature rise is roughly 7°C above ambient - well within the 125°C rating. If you operate at maximum supply voltage and maximum output swing simultaneously, add a small copper pour under the thermal pad to keep Tj below 100°C for long-term reliability.
For TIA applications, the input capacitance of the photodiode plus stray PCB capacitance creates a noise gain peaking that can cause instability. Add a feedback capacitor Cf across the feedback resistor; a starting value of Cf = sqrt(Cin / (2π·GBW·Rf)) gives critically-damped response. Simulate with the actual photodiode model before layout freeze. For unity-gain buffers driving ADC inputs, place a 1 nF to 10 nF R-C snubber at the ADC IN+ pin to isolate the op amp output from the ADC sampling glitches.
Do not leave the SHDN pin (pin 6) floating - tie it to V+ through a 100 kΩ resistor or directly to V+ for normal operation. A floating SHDN pin picks up noise and intermittently shuts the part down, causing rail collapse. Do not exceed 11.75 V total supply; the absolute maximum rating is 12 V per the LTC6226 datasheet, and transients above 12 V will permanently damage the part. Avoid capacitive loads above 50 pF at unity gain without a series resistor to maintain phase margin.
규정 준수 정보
Pb-free per #TRMPBF suffix; RoHS compliant per DigiKey product page. AEC-Q100 automotive qualification not explicitly stated in the provided data - contact Analog Devices for automotive-grade confirmation. Halogen-free status not in the verified data.
