TS932IN - Dual 2.7V Rail-to-Rail Op Amp | STMicroelectronics
Teilenummer: TS932IN ✗ AbgekündigtTS932IN Übersicht
An operational amplifier is an analog integrated circuit that compares two input voltages and amplifies the difference between them. It belongs to the amplifier IC hierarchy and supports feedback, filtering, buffering, level conversion, and closed-loop control functions. The TS932IN is a dual amplifier, so two independent signal-processing channels are available in one package. Its rail-to-rail output stage is particularly useful when the required output signal must approach the available supply-rail limits.
The primary confirmed features of the TS932IN include operation down to 2.7 V, dual-circuit construction, rail-to-rail output behavior, and a 2.9 Vpp output swing at 3 V supply with a 100 kΩ load. This combination suits battery-powered and low-voltage embedded systems where headroom is limited. Because the output can operate close to the supply rails, designers can increase usable signal range without requiring a substantially higher supply voltage.
In dual-signal applications, the TS932IN can process one channel as an active filter and the other as a buffer or gain stage. Symmetrical device construction helps simplify PCB planning in instrumentation, audio, communications, and industrial control products. Its through-hole Mini DIP package also remains convenient for prototyping, educational platforms, repair assemblies, and designs assembled with conventional through-hole insertion rather than fine-pitch surface-mount automation.
Typical applications include sensor-signal conditioning, low-voltage audio processing, joystick and control interfaces, ADC input drivers, active filters, and general-purpose dual-channel analog amplification. In a sensor interface, one amplifier can scale or invert a sensor output while the second channel can provide buffering for an ADC. In an audio preamplifier, the rail-to-rail outputs can support low-amplitude signals when the system operates near the lower supply limit.
A primary design consideration is output loading. The stated 2.9 Vpp swing applies to a 100 kΩ load, so heavier loads can reduce usable output range and alter distortion or stability behavior. PCB implementations should keep input and feedback paths short, place compensation or decoupling components close to their associated pins, and provide adequate ground return paths. Engineers should also review the complete manufacturer datasheet for input common-mode limits, output-current capability, noise, bandwidth, and stability requirements.
This product overview combines the verified operating envelope, package identity, and application-focused engineering guidance with a side-by-side view of potential replacements. It also highlights where engineers must confirm pin compatibility, load conditions, and lifecycle requirements before approving a substitution or redesigning an existing 8-pin Mini DIP layout.
Drop-in-Alternativen für TS932IN – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Für dieses Produkt sind keine Drop-in-Alternativen verfügbar.
Alternativen anfordernTS932IN Grenzwerte & elektrische Eigenschaften
| Number of Amplifier Channels | 2 channels |
| Minimum Supply Voltage | 2.7 V |
| Output Swing at 3 V Supply | 2.9 Vpp with RL = 100 kΩ |
| Load Resistance for Stated Output Swing | 100 kΩ |
| Output Topology | Rail-to-rail |
| Product Classification | General-purpose operational amplifier |
| Gehäuse | 8-pin Mini DIP |
| Montagestil | Through-hole |
| Anzahl der Pins | 8 pins |
| RoHS-Status | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
TS932IN Pin-Konfiguration
| Pin 1 | OUT1 — Output of amplifier channel 1 |
| Pin 2 | IN1- — Inverting input of amplifier channel 1 |
| Pin 3 | IN1+ — Non-inverting input of amplifier channel 1 |
| Pin 4 | V- — Negative supply connection |
| Pin 5 | IN2+ — Non-inverting input of amplifier channel 2 |
| Pin 6 | IN2- — Inverting input of amplifier channel 2 |
| Pin 7 | OUT2 — Output of amplifier channel 2 |
| Pin 8 | V+ — Positive supply connection |
Typische Anwendungen
TS932IN ist geeignet für 6 Anwendungs: Low-Voltage Sensor Signal Conditioning, Portable Audio Preamplifier, Active Filter and Equalization, Industrial Joystick and Control Interface, General Instrumentation Buffering, Legacy Control-System Repair.
Low-Voltage Sensor Signal Conditioning
The TS932IN is suitable for conditioning low-level sensor outputs because each of its two channels can provide amplification, inversion, or filtering at a minimum supply of 2.7 V. One channel may scale a sensor signal while the other buffers a reference or auxiliary input. At a 3 V supply, the amplifier can produce a 2.9 Vpp swing with a 100 kΩ load, helping preserve usable dynamic range near the supply limits. Designers should verify the input common-mode range against the sensor’s operating voltage and confirm that the ADC or sensor load does not exceed the intended 100 kΩ test condition.
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Portable Audio Preamplifier
The TS932IN can form a compact dual-channel preamplifier in portable audio and communication equipment powered from a 3 V rail. Its rail-to-rail output stage provides a 2.9 Vpp swing at 3 V with a 100 kΩ load, which is useful when the input signal approaches the available output range. The two channels can support stereo signal paths or one amplification channel plus one buffer. Input impedance, gain-bandwidth requirements, output loading, and distortion must be checked against the source and following stage before the circuit is finalized.
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Active Filter and Equalization
The dual TS932IN can implement two active-filter sections or combine filtering with gain and buffering for low-voltage control or audio boards. Operating from 2.7 V supports compact systems in which the signal range is limited by the available supply. The 3 V output capability provides useful signal headroom, while the second channel can be used for an auxiliary filtering path. Component tolerances and amplifier noise will influence filter accuracy, and the application should be checked for stability across the intended gain and load range.
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Industrial Joystick and Control Interface
The TS932IN is applicable to industrial joystick, potentiometer, and low-level control interfaces because two channels can process independent analog inputs without requiring separate single amplifier packages. Its low-voltage operation fits compact control boards powered near 3 V, while the rail-to-rail output can improve utilization of the available conversion range. The common reference should be connected carefully to avoid offsetting the signal relative to the converter input range. For noisy industrial environments, filtering, grounding, and protection must be evaluated separately from the amplifier’s basic signal-path requirements.
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General Instrumentation Buffering
The TS932IN can buffer instrument front ends where a high-impedance source must drive a measurement or conversion stage. One channel may isolate the sensor while the second handles gain or an active filter, reducing component count in a dual-channel instrument. Operation down to 2.7 V supports compact portable analyzers and low-voltage test equipment. The designer should verify input bias current, input voltage limits, offset, noise, and capacitive-load stability because the confirmed low-voltage envelope alone does not establish suitability for every high-impedance source.
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Legacy Control-System Repair
The TS932IN is particularly relevant to maintenance of legacy industrial and embedded control boards that use an 8-pin Mini DIP dual operational amplifier. Its 2.7 V minimum supply and 2.9 Vpp output swing at 3 V with a 100 kΩ load can preserve the operating behavior of existing low-voltage analog sections. The through-hole package simplifies repair and prototype assembly. Before substitution, confirm that the replacement has identical pin numbering, acceptable input and output ranges, suitable output-current capability, and acceptable temperature range for the original equipment.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für TS932IN – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt |
|---|---|
| Package | 8-pin Mini DIP |
| Brand | STMicroelectronics |
| Number of Amplifier Channels | 2 |
| Minimum Supply Voltage | 2.7 V |
| Output Swing at 3 V | 2.9 Vpp with RL = 100 kΩ |
| Output Topology | Rail-to-rail |
| Product Classification | General-purpose operational amplifier |
| Mounting Style | Through-hole |
| Lifecycle Status | Obsolete |
Wichtigste Unterscheidungsmerkmale
- Established low-voltage dual-amplifier configuration (vs. Modern surface-mount dual amplifiers)
- Through-hole package supports repair and manual assembly (vs. Surface-mount dual amplifier packages)
- Two signal-processing channels in one IC (vs. Discrete single operational amplifiers)
Designhinweise
Do not interpret the rail-to-rail output specification as proof that the input common-mode range covers both supply rails. Check the complete input-voltage limits against the sensor, potentiometer, or ADC source. For a 3 V supply, also preserve operating margin around the stated 2.9 Vpp output swing because that value is tied to a 100 kΩ load and may change as the load becomes heavier.
Place each feedback resistor and input component close to the corresponding amplifier pins to minimize parasitic capacitance and susceptibility to noise pickup. Route the two channels symmetrically where possible, keep the ground return continuous, and avoid placing long signal traces beside the supply entry or output pins. Through-hole Mini DIP construction makes lead geometry more forgiving than fine-pitch packages, but feedback-loop length still affects stability and interference.
Decouple each supply rail close to the IC and provide adequate energy storage for the intended transient load. The minimum operating voltage is 2.7 V, so a 3 V battery must remain above the system’s dropout margin under temperature and load. Confirm quiescent current and output-current requirements from the complete electrical characteristics before estimating battery life or sizing the supply rail.
A replacement in an 8-pin Mini DIP socket is not automatically interchangeable. Verify pin 1 orientation, channel assignment, supply pins, input polarity, input common-mode range, output swing, and stability with the intended feedback network. Any substitute operating at a different maximum supply voltage or having a different input architecture may require schematic or component-level changes even when the package dimensions match.
Compliance-Informationen
The verified product information does not state the requested compliance or material-status details.
