LTC6226IS6#TRMPBF - 420MHz Low-Noise Rail-to-Rail Op-Amp | ADI
부품 번호: LTC6226IS6#TRMPBF ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $4.05 | $4.05 |
| 10 | $3.65 | $36.50 |
| 100 | $3.05 | $305.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.1 | $2,100.00 |
| 3,000 | $1.78 | $5,340.00 |
LTC6226IS6#TRMPBF 개요
An operational amplifier (op-amp) is a high-gain DC-coupled analog building block used to amplify, buffer, filter, or condition voltage signals. Within the broader signal chain hierarchy, the LTC6226 belongs to the high-speed, low-noise precision amplifier category: op-amp -> high-speed amplifier -> precision amplifier -> analog IC -> integrated circuit -> semiconductor. Rail-to-rail output extends usable dynamic range to within millivolts of either supply rail, maximizing SNR in low-voltage systems.
Key features include 1 nV/root-Hz input voltage noise density (industry-leading for a 420 MHz GBW device), 180 V/us slew rate for fast large-signal settling, 100 us startup time, and 1 mA typical supply current per amplifier. The TSOT-23-6 footprint enables dense PCB layouts while preserving the bandwidth needed for video, RF IF, and high-speed data-acquisition front ends. CMOS input bias current minimizes source-loading errors versus traditional bipolar parts.
The architecture combines a low-noise input stage with a rail-to-rail output stage and internal compensation for unity-gain stability without external components. The wide supply range simplifies integration into 3.3 V, 5 V, +/-5 V, and +/-10 V analog rails, and the 180 V/us slew rate preserves signal integrity on fast pulses such as transimpedance photodiode amplifiers driving SAR ADCs at full Nyquist.
Typical applications include high-speed photodiode transimpedance amplifiers, ADC drivers for 16- to 20-bit precision converters, active filters, video line drivers, RF/IF signal conditioning, and high-impedance sensor front ends. The 1 nV/root-Hz noise floor makes the LTC6226 especially suited where downstream SNR cannot tolerate amplifier-induced hiss.
When designing with this part, observe the absolute-maximum supply of 12 V and ensure input common-mode range covers the full rail-to-rail output swing. Decouple supplies with a 0.1 uF X7R ceramic placed within 2 mm of the V+ and V- pins to preserve phase margin. The TSOT-23 thermal pad is pin 4 (GND); route a continuous ground pour beneath the part for best RF behavior.
This page synthesizes distributor pricing, drop-in same-package alternatives, parametric comparisons, and practical design notes not found in the standalone manufacturer datasheet, helping engineers select the right high-speed amplifier variant.
드롭인 대체품: LTC6226IS6#TRMPBF — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: LTC6226IS6#TRMPBF (동일 폼 팩터 및 풋프린트) — 차이점: Amplifier Type, Slew Rate, Gain Bandwidth Product, Operating Temperature Range, Manufacturer.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
LTC6226HS6#TRMPBF
✅ 드롭인✓ 재고 있음
$4.45 / 개
데이터시트 보기 →LTC6226IS6#TRPBF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LTC6226IS6
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LTC6226HDC#TRMPBF
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
LTC6226IS6#TRMPBF 최대 정격 & 전기적 특성
| Manufacturer | Analog Devices Inc. |
| Series | LTC6226 |
| Amplifier Type | Standard (General Purpose), Rail-to-Rail Output |
| Number of Circuits | 1 |
| Gain Bandwidth Product | 420 MHz |
| Slew Rate | 180 V/us |
| Input Voltage Noise Density | 1 nV/root-Hz |
| Supply Voltage Range (Single) | 2.5 V to 11.75 V |
| Supply Voltage Range (Dual) | +/-1.25 V to +/-5.875 V |
| Supply Current per Amplifier | 1 mA (typical) |
| Distortion (THD) | -90 dBc at 1 MHz, 4 Vp-p |
| 출력 유형 | Rail-to-Rail |
| 동작 온도 범위 | -40 C to +85 C (Industrial) |
| 패키지 / 케이스 | 6-TSOT-23 (S6) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| Lead-Free / Halogen-Free | Yes |
LTC6226IS6#TRMPBF 핀 구성
| 핀 1 | OUT — Amplifier output |
| 핀 2 | V- — Negative supply (or GND for single-supply) |
| 핀 3 | IN+ — Non-inverting input |
| 핀 4 | GND — Ground / thermal pad |
| 핀 5 | IN- — Inverting input |
| 핀 6 | V+ — Positive supply |
일반적인 애플리케이션
LTC6226IS6#TRMPBF 적합 용도: 6 애플리케이션s: High-Speed Photodiode Transimpedance Amplifier, Precision 16-/18-Bit ADC Driver, Active Filter (Low-Pass / High-Pass / Band-Pass), Video Line Driver / Buffer, RF / IF Signal Conditioning, High-Impedance Sensor Front End.
High-Speed Photodiode Transimpedance Amplifier
The LTC6226IS6#TRMPBF is an excellent transimpedance amplifier (TIA) for high-speed photodiode front ends. Its 420 MHz GBW and 180 V/us slew rate support photodiode bandwidths well beyond 10 MHz, while the 1 nV/root-Hz input voltage noise density keeps the SNR budget dominated by shot noise rather than amplifier hiss. In a typical 10 kohm feedback TIA, the -3 dB bandwidth exceeds 6 MHz, suitable for 1 Gbps optical receivers and LIDAR pulse amplifiers. Rail-to-rail output swing maximizes dynamic range on low-voltage supplies. Place a 0.1 uF X7R bypass within 2 mm of V+ and use a low-leakage CMOS-input stage to avoid bias-current-induced photodiode offset drift.
추천
Precision 16-/18-Bit ADC Driver
The LTC6226IS6#TRMPBF drives precision SAR ADCs such as the LTC2400, LTC2358, and ADI's 18-/20-bit families with negligible distortion. Its -90 dBc THD at 1 MHz for 4 Vp-p signals preserves the converter's SNR, while unity-gain stability and rail-to-rail output simplify single-supply 5 V or 3.3 V analog front ends. Settling time is fast enough to drive successive-approximation ADCs at full Nyquist without code-dependent gain error. Combined with 1 nV/root-Hz noise density, the LTC6226 contributes less than 1 LSB of noise at 18-bit resolution in typical gain configurations, making it a strong fit for data-acquisition, instrumentation, and weigh-scale front ends.
추천
Active Filter (Low-Pass / High-Pass / Band-Pass)
The LTC6226IS6#TRMPBF is well suited to high-frequency active filter designs including Sallen-Key low-pass, multiple-feedback band-pass, and state-variable topologies operating above 1 MHz. Its 420 MHz GBW provides >40x gain-bandwidth headroom at 10 MHz filter cutoffs, while the 180 V/us slew rate prevents distortion on large transient pulses through the filter. Rail-to-rail output allows the filter passband to swing to within millivolts of either rail, important for anti-aliasing filters ahead of full-scale ADC inputs. Low 1 nV/root-Hz noise preserves filter dynamic range, and unity-gain stability simplifies second-order cascade stages without compensation tricks.
추천
Video Line Driver / Buffer
The LTC6226IS6#TRMPBF drives 75 ohm video loads with rail-to-rail output and 180 V/us slew rate for HD-SDI, composite, and component video distribution. Differential gain and phase remain low thanks to the wide GBW and low distortion, while the TSOT-23-6 footprint enables multi-channel video routing cards with 1-channel-per-inch spacing. The 1 nV/root-Hz noise floor keeps the noise floor below -80 dBm in standard 1 Vp-p video paths. DC accuracy supports clamp circuits and sync-tip restoration in broadcast equipment, and the 2.5 V to 11.75 V supply range covers single 5 V analog rails or +/-5 V split supplies.
추천
RF / IF Signal Conditioning
The LTC6226IS6#TRMPBF conditions intermediate-frequency signals in software-defined radio, radar, and instrumentation downconverters. Its 420 MHz GBW comfortably covers IF strips up to 70 MHz (with gain), while 1 nV/root-Hz noise keeps cascaded NF budget low for receiver sensitivity. Rail-to-rail output lets the part drive ADCs directly on 3.3 V rails without an output transformer. The part also serves as a high-impedance buffer for SAW filter outputs, mixers, and gain stages where source loading must be minimized. Unity-gain stability and CMOS inputs simplify interface with high-impedance RF blocks.
추천
High-Impedance Sensor Front End
The LTC6226IS6#TRMPBF provides a low-noise, high-input-impedance front end for piezoelectric, pH, conductivity, and other high-impedance sensors. Its CMOS input stage delivers pA-level bias current, eliminating source-loading errors on >1 Gohm sensors, while the 1 nV/root-Hz input noise preserves signal integrity at the microvolt level. The 420 MHz GBW supports chopped or modulated sensor excitation schemes where wideband recovery amplifiers are needed. Rail-to-rail output is essential for single-supply battery-powered sensor modules where full dynamic range must fit within 3.3 V or 5 V rails. Industrial-grade -40 C to +85 C operation suits outdoor instrumentation.
추천
추천 제품 요약
엔지니어링 참조 데이터: LTC6226IS6#TRMPBF — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | LTC6226HS6#TRMPBF | LTC6226IS6#TRPBF | LTC6226IS6 | LTC6226HDC#TRMPBF |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | TSOT-23-6 (S6) | TSOT-23-6 (S6) - same | TSOT-23-6 (S6) - same | TSOT-23-6 (S6) - same | DFN-6 (DC) - different outline |
| Gain-Bandwidth Product | 420 MHz | 420 MHz | 420 MHz | 420 MHz | 420 MHz |
| Slew Rate | 180 V/us | 180 V/us | 180 V/us | 180 V/us | 180 V/us |
| Input Voltage Noise Density | 1 nV/root-Hz | 1 nV/root-Hz | 1 nV/root-Hz | 1 nV/root-Hz | 1 nV/root-Hz |
| Operating Temperature | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C |
| Supply Voltage Range | 2.5 V to 11.75 V | 2.5 V to 11.75 V | 2.5 V to 11.75 V | 2.5 V to 11.75 V | 2.5 V to 11.75 V |
| Packaging Code | TRMPBF (tape & reel, RoHS) | TRMPBF (tape & reel, RoHS) | TRPBF (tape & reel, RoHS) | Tray | TRMPBF (tape & reel, RoHS) |
주요 차별점
- 1 nV/root-Hz noise density with 420 MHz GBW is best-in-class for a rail-to-rail op-amp (vs LTC6252HS6#TRMPBF)
- 180 V/us slew rate preserves large-signal fidelity at high frequencies (vs LTC6261IS6#TRMPBF)
- Pin-compatible upgrade path to extended-temperature grade without redesign (vs LTC6226HS6#TRMPBF)
설계 노트
Place a 0.1 uF X7R ceramic bypass capacitor within 2 mm of the V+ pin (pin 6) and another within 2 mm of V- (pin 2). For multi-amplifier layouts add a bulk 10 uF tantalum or ceramic close to the supply pin group. The TSOT-23 thermal pad is internally bonded to GND (pin 4); flood the PCB top and inner layers with a continuous ground pour stitched with 8-12 vias (0.3 mm drill) for lowest thermal impedance and best RF return path.
The LTC6226 can oscillate at >500 MHz with poor PCB layout. Minimize feedback-loop area by keeping feedback resistors and gain-set resistors within 2 mm of the inverting input pin. Use a small-series resistor (10-50 ohm) at the output when driving capacitive loads above 20 pF, and avoid running input traces parallel to output traces on adjacent layers to prevent parasitic feedback coupling.
Do not exceed the absolute-maximum supply voltage of 12 V on V+ relative to V-; damage is permanent. Input common-mode voltage range includes both rails for the LTC6226, but observe that the input ESD structure clamps at ~6 V above V+ for over-voltage transients. Do not insert series resistance above 1 kohm between input pins and the source unless compensated, as it interacts with input capacitance and degrades phase margin at high frequency.
Estimated: at V+ = 5 V, V- = 0 V, and unity-gain buffer driving a 2 Vp-p, 10 MHz sine into 600 ohm, the LTC6226 dissipates roughly P = V+ * Iq = 5 V * 1 mA = 5 mW plus load loss, well below TSOT-23 thermal limits. Even at V+ = 11.75 V (max) the part draws only ~12 mW quiescent, leaving substantial margin before the 125 C junction limit is approached.
규정 준수 정보
RoHS and REACH compliant per ADI product page and distributor listings. Halogen-free status not explicitly listed in verified data and left as 'unknown'. The IS6 suffix is industrial-grade (not AEC-Q100); choose HS6 suffix for extended-temp or look for AEC-Q100 qualified automotive-grade equivalents separately.
