TLC2264CPWR - Quad 16V 710kHz Rail-to-Rail Op Amp | Texas Instruments
부품 번호: TLC2264CPWR ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.42 | $2.42 |
| 10 | $2.05 | $20.50 |
| 100 | $1.62 | $162.00 |
| 500 | $1.32 | $660.00 |
| 1,000 | $1.1 | $1,100.00 |
TLC2264CPWR 개요
What is a rail-to-rail op amp? A rail-to-rail operational amplifier is a specialized analog IC whose output voltage swing can reach (or come close to) both the positive and negative supply rails, maximizing dynamic range in low-voltage single-supply systems. Rail-to-rail amplifiers sit within the larger hierarchy of operational amplifiers -> linear amplifiers -> analog ICs -> signal conditioning, and they are critical building blocks in sensor interfaces, ADC drivers, and battery-powered equipment where every millivolt of headroom matters.
Key specifications include 12 nV/sqrt Hz typical input-referred voltage noise at 1 kHz, 1 pA typical input bias current, and 500 uA maximum quiescent current per channel. The TLC2264 also features a common-mode input voltage range that includes the negative rail, fully specified single-supply and split-supply operation, and ESD-protected inputs. The TSSOP-14 footprint keeps board area low while exposing a thermal pad for modest heat dissipation at elevated ambient conditions.
Architecturally, the Advanced LinCMOS process yields low input bias currents suitable for high-impedance sensor front-ends and pico-amp-level signals. The output stage design allows the swing to reach within millivolts of each rail at moderate load, enabling 12-bit and 14-bit ADC input ranges to be fully utilized in 5V systems.
Typical applications include transducer amplification in industrial process control, signal conditioning for portable and battery-powered instrumentation, low-side current sensing, rail-splitting in single-supply ADC front-ends, and active filtering. Its low noise and low bias current also suit ECG monitor front-ends and other medical instrumentation requiring high input impedance.
When designing with this op amp, place the supply bypass capacitor (typically 0.1 uF ceramic in parallel with 10 uF bulk) within 5 mm of the VCC+ and VCC- pins. For unity-gain buffer configurations, the output can lightly oscillate due to capacitive loading - isolate the output with a 50-ohm series resistor if driving long PCB traces or cables.
This page synthesizes authentic distributor pricing, drop-in same-package alternatives, and practical design notes - the kind of consolidated engineering reference not found in the manufacturer datasheet alone.
드롭인 대체품: TLC2264CPWR — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
TLC2264CPWG4
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TLC2264IPWR
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TLC2264CPWLE
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TLC2274CPWR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TLC2254CPWR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TL074CPWR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TLC2264CPWR 최대 정격 & 전기적 특성
| Number of Channels | 4 (Quad) |
| Amplifier Type | Standard (General Purpose) / Rail-to-Rail Output |
| Gain Bandwidth Product | 710 kHz |
| Slew Rate | 0.55 V/us |
| Supply Voltage Range (Single) | 2.2 V to 16 V |
| Input-Referred Voltage Noise | 12 nV/sqrt Hz (typ at 1 kHz) |
| Input Bias Current | 1 pA (typ) |
| Quiescent Current (per channel, max) | 500 uA |
| Output Swing | Rail-to-Rail |
| Common-Mode Input Range | Includes Negative Rail |
| 동작 온도 범위 | 0 C to 70 C |
| 패키지 | TSSOP-14 (PW) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| Lead Free | Yes |
| Process Technology | Advanced LinCMOS |
TLC2264CPWR 핀 구성
| 핀 1 | 1OUT — Channel 1 output |
| 핀 2 | 1IN- — Channel 1 inverting input |
| 핀 3 | 1IN+ — Channel 1 non-inverting input |
| 핀 4 | VCC+ — Positive supply voltage |
| 핀 5 | 2IN+ — Channel 2 non-inverting input |
| 핀 6 | 2IN- — Channel 2 inverting input |
| 핀 7 | 2OUT — Channel 2 output |
| 핀 8 | 3OUT — Channel 3 output |
| 핀 9 | 3IN- — Channel 3 inverting input |
| 핀 10 | 3IN+ — Channel 3 non-inverting input |
| 핀 11 | VCC- — Negative supply voltage (or GND for single-supply) |
| 핀 12 | 4IN+ — Channel 4 non-inverting input |
| 핀 13 | 4IN- — Channel 4 inverting input |
| 핀 14 | 4OUT — Channel 4 output |
일반적인 애플리케이션
TLC2264CPWR 적합 용도: 7 애플리케이션s: Industrial Sensor Signal Conditioning, Portable Battery-Powered Instrumentation, Active Filter and Anti-Aliasing Stage, Single-Supply ADC Input Driver, Medical ECG / EMG Front-End, Audio Mixer and Headphone Buffer, Automotive Cabin Sensor Interface.
Industrial Sensor Signal Conditioning
The TLC2264CPWR fits industrial 4-20 mA loop transmitter analog front-ends thanks to its 12 nV/sqrt Hz input-referred voltage noise and 1 pA typical input bias current. These parameters allow direct connection to thermocouples, strain gauges, and bridge sensors without buffer-induced offset drift. Each of the four channels can be configured as an instrumentation gain stage, active low-pass filter, or level shifter, enabling complete analog front-end consolidation in PLC analog input modules and process control transmitters.
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Portable Battery-Powered Instrumentation
Battery-powered handheld multimeters and portable oscilloscope probes benefit from the TLC2264CPWR's 500 uA per channel quiescent current and 2.2 V minimum supply voltage. The rail-to-rail output maximizes dynamic range from a single Li-ion cell or two AA batteries, while low input bias current preserves the integrity of high-impedance voltage measurements. The TSSOP-14 footprint consumes less than 25 mm squared of board area, enabling compact handheld designs that operate for hundreds of hours on a single battery set.
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Active Filter and Anti-Aliasing Stage
The TLC2264CPWR's 710 kHz gain bandwidth product supports active filter designs up to several hundred kilohertz, making it suitable for Sallen-Key low-pass, high-pass, and band-pass filters serving as anti-aliasing stages ahead of audio-bandwidth ADCs. The quad packaging enables complete 4-pole cascade filters in a single chip, saving board space and ensuring matched channel responses. The 0.55 V/us slew rate preserves signal integrity for sub-100 kHz signals without slew-induced distortion.
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Single-Supply ADC Input Driver
As a driver for SAR or delta-sigma ADCs in single-supply systems, the TLC2264CPWR's rail-to-rail output reaches within millivolts of either rail at moderate load, preserving full-scale ADC codes in 3.3 V and 5 V systems. The quad form factor enables synchronous sampling of multi-axis sensors including IMUs and power-line monitoring systems. Each amplifier settles quickly enough for the 4-channel driver to keep pace with successive-approximation ADC conversions at sample rates below 200 kSPS.
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Medical ECG / EMG Front-End
Medical ECG, EMG, and bio-impedance measurement front-ends leverage the TLC2264CPWR's 12 nV/sqrt Hz voltage noise and 1 pA input bias current to detect microvolt-level cardiac signals cleanly. The rail-to-rail input common-mode range includes the negative rail, simplifying single-supply biasing for battery-powered patient monitors. The TSSOP-14 footprint combined with quad channels enables compact multi-lead ECG designs while the 500 uA per channel quiescent current keeps total consumption low for portable patient-worn devices.
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Audio Mixer and Headphone Buffer
Consumer audio mixers and headphone buffer stages benefit from the TLC2264CPWR's rail-to-rail output swing, which maximizes signal headroom on 3.3 V or 5 V supplies without output coupling capacitors. The 12 nV/sqrt Hz noise density keeps mixer channel noise floors below audible thresholds, while the 710 kHz GBW preserves flat frequency response across the 20 Hz to 20 kHz audio band. Quad packaging allows four independent line-input channels summed into a single output bus with proper impedance buffering.
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Automotive Cabin Sensor Interface
While the TLC2264CPWR itself is commercial-grade, the industrial-rated TLC2264IPWR variant in the same TSSOP-14 footprint supports automotive cabin sensor interfaces for interior temperature, humidity, and occupant detection systems. The rail-to-rail output preserves ADC dynamic range from 5 V vehicle rails, while the low input bias current preserves accuracy of high-impedance capacitive and resistive sensor networks. Designers integrating cabin comfort and HVAC systems leverage the quad channel count for compact multi-sensor analog front-ends.
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추천 제품 요약
엔지니어링 참조 데이터: TLC2264CPWR — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TLC2264CPWG4 | TLC2264IPWR | TLC2264CPWLE | TLC2274CPWR | TLC2254CPWR | TL074CPWR |
|---|---|---|---|---|---|---|---|
| Package | TSSOP-14 (PW) | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same | TSSOP-14 (PW) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Gain Bandwidth Product | 710 kHz | 710 kHz | 710 kHz | 710 kHz | 2.18 MHz | 190 kHz | 3 MHz |
| Slew Rate | 0.55 V/us | 0.55 V/us | 0.55 V/us | 0.55 V/us | 3.6 V/us | 0.12 V/us | 13 V/us |
| Supply Voltage Range (Single) | 2.2 V to 16 V | 2.2 V to 16 V | 2.2 V to 16 V | 2.2 V to 16 V | 2.2 V to 16 V | 2.2 V to 16 V | 7 V to 36 V |
| Output Swing | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | 1.5 V from rails (not R2R) |
| Quiescent Current (per channel, max) | 500 uA | 500 uA | 500 uA | 500 uA | 1.5 mA | 100 uA | 1.4 mA |
| Operating Temperature Range | 0 C to 70 C | 0 C to 70 C | -40 C to +125 C | 0 C to 70 C | 0 C to 70 C | 0 C to 70 C | 0 C to 70 C |
주요 차별점
- Industry's lowest quiescent current rail-to-rail quad op amp in TSSOP-14 (vs TL074CPWR)
- Pin-compatible drop-in replacement within TLC2264 family (vs TLC2264IPWR)
- Higher gain bandwidth than TLC2254 family (vs TLC2254CPWR)
- Lower noise vs BiFET alternative (vs TL074CPWR)
설계 노트
Place a 0.1 uF ceramic bypass capacitor within 5 mm of the VCC+ pin (4) and VCC- pin (11) to suppress supply noise, per the TLC2264 datasheet power-supply rejection section. Add a 10 uF tantalum or aluminum bulk capacitor in parallel for systems driving heavy transient loads. Use a low-impedance ground plane under the TSSOP-14 footprint to minimize supply-induced channel-to-channel crosstalk. The 500 uA per channel quiescent current requires the supply source to provide at least 2 mA total headroom for stable operation across all four channels simultaneously.
In unity-gain buffer configuration (voltage follower), the rail-to-rail output can drive capacitive loads from a few picofarads up to over 100 pF. Estimated: capacitive loads exceeding 50 pF at the output may cause oscillation peaking above 5 dB around 1 MHz; isolate the output with a series resistor of 47 to 100 ohms placed close to the op amp output pin if driving long PCB traces, cable shields, or ADC inputs with sample-and-hold capacitance.
Route sensitive high-impedance input traces (1IN+, 2IN+, 3IN+, 4IN+) with minimal trace length, guarded on both sides by ground traces, and away from switching digital lines to minimize noise pickup into the 12 nV/sqrt Hz amplifier front-end. Per the TLC2264 datasheet, matching input traces of each channel symmetrically maintains low channel-to-channel offset. Place the TSSOP-14 thermal pad on a 4 mm squared copper pour to keep junction temperature rise under 5 C above ambient at typical 5 V supply operation.
The 1 pA typical input bias current combined with input-trace resistance above 1 kohm can introduce measurable offset voltage drift. Use input series resistors no greater than 10 kohm in high-precision applications, or add a bias-current cancellation resistor (matching the parallel resistance at the inverting and non-inverting inputs). For sensor applications with source impedance above 100 kohm, consider a lower-bias alternative such as the OPA4277 or LMP7704 in the same TSSOP-14 footprint family.
규정 준수 정보
RoHS compliant per TI product page. Not AEC-Q100 qualified - choose automotive-grade variants or other AEC-Q100 qualified devices for automotive applications. Operating temperature range 0 C to 70 C (commercial grade); choose TLC2264IPWR for industrial temperature range.
