TS934IDT - Quad R-R Operational Amplifier | STMicroelectronics
MPN: TS934IDT ✓ نشطTS934IDT نظرة عامة
A rail-to-rail operational amplifier is an analog amplifier whose input and output stages can operate near the positive and negative supply rails. It belongs to the operational-amplifier hierarchy, which includes instrumentation amplifiers, buffer amplifiers, general-purpose amplifiers, and analog signal-chain ICs. This broad operating range makes the amplifier useful when signals can approach either supply rail, although actual input and output swing limits remain dependent on load conditions and supply voltage.
The TS93x family combines four amplifiers in one package, reducing board area compared with discrete single or dual devices. Key characteristics include 5 mA of current consumption per channel, 55 dB instrumentation-amplifier performance as characterized by the product listing, and approximately 1 pA input bias current. At a 3 V supply, the series can produce a 2.9 Vpp output swing with a 100 kohm load, making it useful in low-voltage, low-power systems.
The TS934IDT uses a 14-SO package and is specified for a 2.7 V to 10 V supply range. Its 100 kHz gain-bandwidth product is appropriate for slowly varying sensor signals, feedback-control loops, and analog measurement blocks rather than high-speed waveform or communications channels. Because all four amplifiers share one package, designers must account for common supply routing, thermal behavior, grounding, and channel-to-channel consistency during layout.
Typical applications include portable sensor interfaces, low-voltage data acquisition, battery-powered measurement instruments, transducer conditioning, and general analog buffering. Four integrated amplifiers can be assigned to differential sensor inputs, level shifting, active filtering, or gain stages, although applications requiring high precision, high speed, or very low offset voltage should verify those limits against the manufacturer's electrical characteristics.
When designing a board around the TS934IDT, place decoupling capacitors close to the supply pins and route the ground return directly to the device ground. Keep sensitive input traces away from switching nodes and high-current return paths. Because the amplifier can operate close to the supply rails, verify the actual input common-mode and output swing limits for the selected supply, load, and temperature before relying on full rail-to-rail behavior.
This page organizes the confirmed electrical characteristics, package information, application guidance, design notes, and compatible family references for faster engineering evaluation. It also identifies which parameters require confirmation from the STMicroelectronics datasheet before a production design is released.
بدائل مباشرة لـ TS934IDT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع TS934IDT (نفس عامل الشكل والبصمة) — يختلف في Gain-Bandwidth Product, Input Bias Current, Package, Supply Voltage Range.
TS934ID
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←TS934ID
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←TS934IDT الحدود القصوى والخصائص الكهربائية
| Number of Amplifiers | 4 circuits |
| Amplifier Type | General-purpose operational amplifier |
| Output Topology | Rail-to-rail |
| Supply Voltage Range | 2.7 V to 10 V |
| Gain-Bandwidth Product | 100 kHz |
| Current Consumption per Channel | 5 mA |
| Typical Current Consumption per Channel | 20 uA |
| Input Bias Current | 1 pA |
| Input Offset Current | 0.0003 uA |
| Instrumentation Performance | 55 dB |
| Output Swing | 2.9 Vpp at 3 V supply and 100 kohm load |
| العلبة | 14-SO small-outline package |
| Package Width | 3.90 mm |
| Package Body Length | 0.154 mm as listed in the product description |
| نوع التركيب | Surface mount |
| RoHS Compliance | Unknown |
| REACH Compliance | Unknown |
| AEC-Q100 Qualification | Not applicable |
تكوين أطراف TS934IDT
| دبوس 1 | OUT1 — Output of amplifier 1 |
| دبوس 2 | IN1- — Inverting input of amplifier 1 |
| دبوس 3 | IN1+ — Non-inverting input of amplifier 1 |
| دبوس 4 | V- — Negative supply pin |
| دبوس 5 | IN2+ — Non-inverting input of amplifier 2 |
| دبوس 6 | IN2- — Inverting input of amplifier 2 |
| دبوس 7 | OUT2 — Output of amplifier 2 |
| دبوس 8 | OUT3 — Output of amplifier 3 |
| دبوس 9 | IN3- — Inverting input of amplifier 3 |
| دبوس 10 | IN3+ — Non-inverting input of amplifier 3 |
| دبوس 11 | V+ — Positive supply pin |
| دبوس 12 | IN4+ — Non-inverting input of amplifier 4 |
| دبوس 13 | IN4- — Inverting input of amplifier 4 |
| دبوس 14 | OUT4 — Output of amplifier 4 |
التطبيقات النموذجية
TS934IDT مناسب لـ 6 التطبيقs: Portable Sensor Signal Conditioning, Low-Voltage Data Acquisition, Battery-Powered Measurement Instrument, Industrial Transducer Interface, Active Filtering and Level Shifting, General-Purpose Analog Buffering.
Portable Sensor Signal Conditioning
The TS934IDT fits portable sensor-conditioning blocks that require multiple low-power analog channels on a 2.7 V to 10 V supply. Four amplifiers can condition differential inputs, amplify transducer outputs, and provide active filtering without requiring four separate packages. Its 1 pA input bias current is particularly useful for high-impedance sensors, while the 20 uA typical family consumption and 100 kHz gain-bandwidth product support low-bandwidth measurements. The design should still verify the selected sensor impedance, source noise, and required settling accuracy.
موصى به
Low-Voltage Data Acquisition
The TS934IDT is suitable for compact data-acquisition front ends where several sensor channels must be conditioned from a low-voltage supply. Its four rail-to-rail amplifier circuits can implement differential input stages, gain blocks, or buffers around an ADC. The 2.7 V minimum supply supports 3 V systems, and the documented 2.9 Vpp output swing at 3 V with a 100 kohm load provides useful headroom for low-amplitude measurements. Sampling speed and precision requirements must remain within the 100 kHz gain-bandwidth limit.
موصى به
Battery-Powered Measurement Instrument
The TS934IDT is appropriate for battery-powered measurement instruments that need several analog functions without exhausting available supply capacity. The TS93x family operates down to 2.7 V and is characterized at 20 uA typical consumption per channel, helping support long operating intervals in portable equipment. Four integrated channels can provide sensing, amplification, and buffering functions. Actual battery-life improvement depends on duty cycle, load, regulator efficiency, and whether all four amplifiers operate continuously.
موصى به
Industrial Transducer Interface
The TS934IDT can support low-level transducer interfaces in industrial monitoring equipment where the source impedance is relatively high. An input bias current of 1 pA helps reduce errors caused by bias-current flow through sensitive sources, and four channels allow a controller to monitor several inputs with consistent device characteristics. The 55 dB instrumentation-performance figure and 100 kHz bandwidth suit slow process signals, while a 2.7 V to 10 V supply range supports compact industrial electronics. Calibration and error-budget checks remain essential.
موصى به
Active Filtering and Level Shifting
The TS934IDT can implement active filters and level-shifting stages in low-voltage analog circuits. Two amplifier sections may be combined for a second-order filter, while the remaining channels can buffer references or support intermediate signal-conditioning nodes. Rail-to-rail operation is useful when the signal approaches the available supply range, and the 14-SO package simplifies implementation alongside conventional external resistors and capacitors. Component tolerances, capacitor selection, and the required gain versus frequency response determine overall filter accuracy.
موصى به
General-Purpose Analog Buffering
The TS934IDT provides four amplifier channels for buffering sensors, references, and low-current analog nodes in mixed-signal equipment. Buffering can reduce loading of high-impedance sources and create a defined drive for downstream converters or control inputs. The device's 100 kHz gain-bandwidth product is adequate for slow control and measurement paths rather than high-speed communications signals. Output-current capability, capacitive-load stability, and the exact output swing at the chosen load should be confirmed from the manufacturer electrical characteristics.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ TS934IDT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | TS934ID | TS934 |
|---|---|---|---|
| Package | 14-SO | 14-SO | 14-SO |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Number of Amplifiers | 4 circuits | 4 circuits | 4 circuits |
| Supply Voltage Range | 2.7 V to 10 V | 2.7 V to 10 V | 2.7 V to 10 V |
| Gain-Bandwidth Product | 100 kHz | 100 kHz | 100 kHz |
| Input Bias Current | 1 pA | 1 pA | 1 pA |
| Current Consumption per Channel | 5 mA | 5 mA | 5 mA |
| Output Swing | 2.9 Vpp at 3 V supply and 100 kohm load | 2.9 Vpp at 3 V supply and 100 kohm load | 2.9 Vpp at 3 V supply and 100 kohm load |
| Rail-to-Rail Operation | Yes | Yes | Yes |
أبرز الفروقات
- Four amplifier channels in one package (مقابلTS934ID)
- Confirmed low-voltage operation (مقابلTS934)
- Low input bias current for sensitive analog nodes (مقابلTS934ID)
ملاحظات التصميم
Place the supply bypass capacitor as close as practical to the V+ and V- pins, with a short and low-inductance ground return. Because the TS934IDT is a four-channel device, distribute analog routing systematically and avoid sharing narrow copper paths between sensitive inputs and output or switching-current returns. Validate the final layout for ground bounce and supply ripple before relying on the nominal 100 kHz bandwidth.
Confirm the input common-mode range, output swing, and capacitive-load behavior against the selected supply and load. The documented 2.9 Vpp swing applies at a 3 V supply with a 100 kohm load and does not guarantee the same headroom into a heavy or capacitive load. For high-impedance sources, keep traces short and guard against leakage from adjacent board areas because even the 1 pA bias-current characteristic can affect ultra-high-impedance nodes.
Do not treat rail-to-rail input operation as permission to exceed the absolute maximum input voltage. Likewise, the output stage should not be assumed to swing fully to either supply rail under every load condition. Review start-up behavior, supply sequencing, output saturation, and the configured closed-loop gain against the manufacturer's recommended operating conditions before connecting external signals or driving downstream circuitry.
Estimated: with four channels operating at the listed 5 mA per channel, the amplifier current is approximately 20 mA. This is an arithmetic operating-point estimate based on the listed per-channel figure, not a guaranteed worst-case supply-current specification. Add regulator headroom, transient response requirements, and quiescent-current behavior from the complete datasheet when sizing the supply for the completed board.
معلومات الامتثال
The verified product information identifies an industrial general-purpose amplifier in a 14-SO package but does not provide RoHS, REACH, halogen-free, lead-free, conflict-minerals, or automotive-qualification statements. Automotive qualification is not indicated and is therefore treated as not applicable rather than qualified.
