TSV524IQ4T - Quad 1.15MHz CMOS Op-Amp, RRIO | STMicroelectronics
Teilenummer: TSV524IQ4T ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $2.1 | $2,10 |
| 10 | $1.85 | $18,50 |
| 100 | $1.62 | $162,00 |
| 500 | $1.39 | $695,00 |
| 1.000 | $1.18 | $1.180,00 |
| 3.000 | $0.97 | $2.910,00 |
TSV524IQ4T Übersicht
What is a CMOS operational amplifier? A CMOS op-amp is a type of analog integrated circuit that uses complementary metal-oxide-semiconductor transistors in its input and gain stages. Compared to bipolar op-amps, CMOS op-amps typically offer higher input impedance, lower input bias current, and lower quiescent power consumption, making them well-suited for battery-powered and high-impedance sensor interfaces. The TSV524IQ4T sits in the broader taxonomy: operational amplifier -> amplifier IC -> analog IC -> semiconductor. Its RRIO capability means the output can swing within millivolts of both supply rails, maximizing dynamic range in low-voltage single-supply systems.
Key features include the high merit factor (1.15 MHz GBW for only 45 µA supply current), 1 pA typical input bias current that simplifies high-impedance sensor signal chains, 100 pF capacitive load drive capability, and the tiny 3x3 mm QFN-16 footprint that enables dense multi-channel designs. An exposed pad (EP) on the package provides a low thermal-resistance path to the PCB, useful when several channels drive continuous loads.
Architecturally, the TSV524IQ4T uses a CMOS input stage with rail-to-rail input common-mode range achieved through complementary N/P differential pairs. The output stage is a class-AB CMOS topology that delivers rail-to-rail output swing. This design optimizes the speed-to-power ratio for applications where low quiescent current matters more than raw bandwidth.
Typical applications include battery-powered sensor signal conditioning, portable instrumentation, active filters, transducer interfaces, and current-sensing amplifiers. The wide supply range and RRIO capability make it a strong fit for single-cell Li-ion (3.0-4.2 V) and 3.3 V system designs.
When designing with this device, note that the QFN-16 package requires careful PCB layout - the exposed thermal pad must be soldered to a sufficiently large copper area to meet the published thermal resistance and to maintain mechanical reliability. Decouple each supply pin with a 100 nF ceramic capacitor placed as close to the IC as possible.
This page synthesizes distributor pricing, verified pin-to-pin drop-in alternatives, and PCB/thermal design guidance for the TSV524IQ4T that complements the manufacturer datasheet.
Drop-in-Alternativen für TSV524IQ4T – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
TSV524AIQ4T
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
TSV524IPT
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
TSV524IQ4T Grenzwerte & elektrische Eigenschaften
| Number of Circuits | 4 (quad) |
| Amplifier Type | CMOS, Rail-to-Rail Input/Output |
| Gain Bandwidth Product | 1.15 MHz |
| Slew Rate | 0.89 V/µs |
| Supply Current (per channel) | 45 µA typical at 5 V |
| Supply Voltage Range (single) | 2.7 V to 5.5 V |
| Input Bias Current | 1 pA typical |
| Input Offset Voltage | 1 mV typical |
| Ausgangstyp | Rail-to-Rail |
| Capacitive Load Drive | 100 pF |
| Betriebstemperaturbereich | -40 °C to +125 °C |
| Gehäuse | QFN-16 (3x3 mm) with exposed pad |
| Montageart | Surface Mount |
| MSL-Level | 1 (per JEDEC J-STD-020) |
| RoHS-Status | Compliant |
| Automotive Qualification | AEC-Q100 grade (Q-suffix) |
TSV524IQ4T Pin-Konfiguration
| Pin 1 | OUT1 — Amplifier 1 output |
| Pin 2 | IN1- — Amplifier 1 inverting input |
| Pin 3 | IN1+ — Amplifier 1 non-inverting input |
| Pin 4 | VCC+ — Positive supply voltage |
| Pin 5 | IN2+ — Amplifier 2 non-inverting input |
| Pin 6 | IN2- — Amplifier 2 inverting input |
| Pin 7 | OUT2 — Amplifier 2 output |
| Pin 8 | OUT3 — Amplifier 3 output |
| Pin 9 | IN3- — Amplifier 3 inverting input |
| Pin 10 | IN3+ — Amplifier 3 non-inverting input |
| Pin 11 | VCC- — Negative supply / ground (single-supply) |
| Pin 12 | IN4+ — Amplifier 4 non-inverting input |
| Pin 13 | IN4- — Amplifier 4 inverting input |
| Pin 14 | OUT4 — Amplifier 4 output |
| Pin 15 | NC — Not connected (per datasheet) |
| Pin 16 | NC — Not connected (per datasheet) |
Typische Anwendungen
TSV524IQ4T ist geeignet für 7 Anwendungs: Battery-Powered Sensor Signal Conditioning, Active Filter and Sallen-Key Stages, Automotive Sensor Interfaces (AEC-Q100), Portable Instrumentation Front-End, Transducer / Wheatstone-Bridge Amplifier, Current-Sense Amplifier (Low-Side), Audio Pre-Amplifier / Microphone Interface.
Battery-Powered Sensor Signal Conditioning
The TSV524IQ4T is well-suited for conditioning high-impedance sensor signals in battery-powered systems. Its 1 pA typical input bias current minimizes current-induced errors when interfacing with pH probes, photodiodes, or piezo sensors. The 45 µA per-channel quiescent current allows four active channels at only ~180 µA total Iq, leaving substantial budget for MCU and radio. With 1.15 MHz GBW the device handles audio-bandwidth sensor signals (e.g., microphone pre-amplification, vibration pickup) with adequate phase margin. Its 2.7-5.5 V single supply directly accepts a single-cell Li-ion (3.0-4.2 V) source, eliminating the need for negative rails and saving PCB area in space-constrained IoT nodes.
Empfohlen
Active Filter and Sallen-Key Stages
The TSV524IQ4T's combination of 1.15 MHz GBW and 0.89 V/µs slew rate makes it a strong fit for active filter implementations in the sub-100 kHz range. Multiple Sallen-Key or multiple-feedback topologies can be realized using the four independent channels in a single QFN-16 (3x3) footprint, saving PCB area versus four single op-amps. Rail-to-rail input and output maximize dynamic range when filters operate from 3.3 V or 5 V rails. The 100 pF capacitive load drive capability ensures stable operation with capacitive loads typical of cascaded filter stages without requiring isolation resistors.
Empfohlen
Automotive Sensor Interfaces (AEC-Q100)
The TSV524IQ4T (Q-suffix variant) is AEC-Q100 qualified and supports the +125 °C operating temperature required for under-hood automotive applications. Its quad channel count allows direct interfacing of multiple sensors (e.g., pressure, temperature, position) to a single conditioning IC. The 2.7-5.5 V supply range covers automotive 3.3 V and 5 V rails, and the rail-to-rail I/O maximizes resolution from low-voltage sensor outputs. Use the part for body control modules, sensor clusters, and battery-management current-sense amplifiers where low Iq and AEC-Q100 are both required.
Empfohlen
Portable Instrumentation Front-End
Handheld multimeters, data loggers, and portable test instruments benefit from the TSV524IQ4T's small QFN-16 footprint and four-channel density. Use it for input protection buffering, programmable gain stages, and signal-level shifting ahead of an ADC. The 1 pA input bias preserves measurement accuracy on high-impedance probes, while the 1.15 MHz GBW supports sampling rates up to several hundred kSPS when paired with successive-approximation ADCs. The RRIO output maximizes the usable ADC input range from low-voltage rails common in battery-powered instrumentation.
Empfohlen
Transducer / Wheatstone-Bridge Amplifier
Strain-gauge, load-cell, and pressure-sensor bridges produce differential millivolt-level signals that require low-offset, low-bias-current amplification. The TSV524IQ4T's 1 pA input bias and rail-to-rail input common-mode range simplify instrumentation front-ends where the bridge common-mode voltage may swing widely with supply variations. With four channels per IC, designers can implement dual-bridge channels for redundant sensing or include active excitation drivers on the remaining channels. Low 45 µA per-channel Iq keeps the total always-on budget low for remote/battery telemetry nodes.
Empfohlen
Current-Sense Amplifier (Low-Side)
The TSV524IQ4T can be configured as a low-side current-sense amplifier using a shunt resistor in series with the load. The rail-to-rail input range permits sense voltages near ground, and the 1.15 MHz GBW supports closed-loop bandwidths well beyond typical PWM-edge transitions in motor-drive or solenoid-drive circuits. With four channels, multiple motor phases or rails can be monitored simultaneously. Low 45 µA/channel Iq is acceptable for always-on monitoring tasks in energy-conscious designs such as e-bike controllers and robotics power stages.
Empfohlen
Audio Pre-Amplifier / Microphone Interface
Although not optimized for high-fidelity audio, the TSV524IQ4T works well as a microphone pre-amplifier, line receiver, or headphone driver in cost-sensitive portable products. Its 1.15 MHz GBW comfortably covers the 20 Hz-20 kHz audio band, while the rail-to-rail output maximizes usable dynamic range from 3.3 V or 5 V supplies. The 45 µA per-channel Iq keeps the analog section lightweight in battery-powered wireless microphones and Bluetooth headsets. Multiple channels in one package simplify stereo or multi-microphone array designs.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TSV524IQ4T – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | TSV524AIQ4T | TSV524IPT | TLV376IDBVR |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Package | QFN-16 (3x3) | QFN-16 (3x3) - same | QFN-16 (3x3) - same | SOIC-8 - different |
| Number of Channels | 4 | 4 | 4 | 4 |
| Gain Bandwidth Product | 1.15 MHz | 1.15 MHz | 1.15 MHz | 5.5 MHz |
| Supply Current per Channel | 45 µA | 45 µA | 45 µA | 1.1 mA |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 1.8 V to 5.5 V |
| Input Offset Voltage | 1 mV typical | 0.5 mV (A-grade) | 1 mV typical | 0.5 mV typical |
| Rail-to-Rail I/O | Yes (input and output) | Yes | Yes | Yes |
| Automotive Grade (AEC-Q100) | Yes (Q-suffix) | Yes (Q-suffix) | No (industrial) | No |
Wichtigste Unterscheidungsmerkmale
- Lowest quiescent current per channel at 1.15 MHz GBW (vs. TLV376IDBVR)
- AEC-Q100 automotive qualification with same quad channel count (vs. TSV524IPT)
- Quad configuration in compact QFN-16 (3x3) package (vs. Discrete single op-amps)
Designhinweise
The TSV524IQ4T QFN-16 (3x3) package includes an exposed thermal pad (EP) on the underside. This pad must be soldered to a PCB ground copper plane of at least 16 mm² to achieve the published thermal resistance and to provide mechanical reliability. Use multiple thermal vias in the EP land pattern to conduct heat to inner ground planes; do not leave the EP unsoldered or the part will exceed datasheet thermal limits under continuous load.
Place a 100 nF X7R ceramic decoupling capacitor within 2 mm of the VCC+ pin (pin 4) and a bulk 1-10 µF tantalum or ceramic capacitor on the supply rail. For multi-channel applications where several op-amps switch simultaneously, an additional 10 nF high-frequency bypass in parallel with the 100 nF cap reduces supply-induced crosstalk. The TSV524IQ4T Iq scales linearly with channel count (45 µA per active channel), so disable unused channels by tying their outputs to ground via 10 kΩ to avoid wasted current.
The TSV524IQ4T input bias current of 1 pA typical means that even 100 MΩ source impedances produce negligible voltage error (<0.1 mV). However, leakage currents from PCB contamination on high-impedance input traces can dominate the error budget; keep input traces short, guard them with grounded traces, and use PTFE or low-absorption solder-mask if precision at >10 MΩ source impedance is required.
Do not exceed the absolute maximum supply voltage of 6 V on VCC+. Output shorts to either rail can exceed the package's 150 mA internal current limit and trigger thermal shutdown - check worst-case load and fault conditions. The RRIO input range applies to common-mode voltage within ~0.1 V of either rail; outside this range the input stage saturates and the output becomes nonlinear.
Compliance-Informationen
RoHS compliant per ST product page. Q-suffix variant is AEC-Q100 qualified. REACH and halogen-free status not explicitly listed in verified web data; marked unknown per Data Authenticity Rule #10.
