TS974ID - 12 MHz Low-Noise Rail-to-Rail Op Amp | STMicroelectronics
MPN: TS974ID ✓ ActiveTS974ID Overview
An operational amplifier is an analog integrated circuit that uses high-gain differential feedback to amplify small voltage signals. The TS974ID belongs to the TS97x family of low-noise, low-distortion amplifiers. Within the broader semiconductor hierarchy, an operational amplifier is an analog amplifier IC, a linear signal-processing component, and ultimately part of a power-management and signal-chain ecosystem.
Its four amplifiers combine rail-to-rail output swing with a 12 MHz bandwidth and 4 V/µs slew rate. The stated 4 nV/√Hz noise density supports low-noise signal acquisition, while the specified 0.003% distortion improves linearity in audio and precision analog circuits. A supply range of 2.7 V to 10 V permits operation from a single 3.3 V or 5 V rail or from a split supply as low as ±1.35 V.
The TS97x architecture is designed for low-noise and low-distortion performance, with particular suitability for portable and battery-supplied equipment. The quad configuration provides four amplifiers in one 14-pin SOIC package, reducing board area when multiple analog channels require similar electrical performance. Its 12 MHz bandwidth is substantially higher than that required for many slow sensor-conditioning channels, allowing designers to preserve signal fidelity over a wider frequency range.
Typical applications include audio preamplification, microphone and sensor conditioning, portable instrumentation, active filtering, data acquisition, and low-voltage embedded systems. The TS974ID is especially useful when several channels must process signals without adding a separate amplifier package for every stage. In audio systems, its low noise and low distortion support cleaner preamplifier operation; in sensors, the rail-to-rail output can improve usable dynamic range on low-voltage supplies.
When designing around the TS974ID, account for input common-mode range, output swing, stability with the selected feedback network, and noise bandwidth. Decoupling capacitors should be placed close to the supply pins, while analog input and feedback paths should be kept short and away from switching nodes. Stable feedback components and suitable output loading are important when exploiting the device's 12 MHz bandwidth.
This product record consolidates verified manufacturer-family characteristics, distributor availability, package information, and practical application guidance. It also identifies the missing pricing, pin-level, environmental, and qualification details explicitly rather than estimating them, allowing engineers to compare the TS974ID against other low-noise rail-to-rail quad amplifiers before committing to a design.
Drop-in alternatives for TS974ID — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
TS971ID
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →TS972ID
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →TS973ID
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TS975ID
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TL974IPW
✅ Drop-In📋 Reference alternative (not in catalog)
TS974ID Maximum Ratings & Electrical Characteristics
| Number of Amplifiers | 4 circuits |
| Amplifier Type | Low-noise, low-distortion operational amplifier |
| Operating Supply Range | 2.7 V to 10 V |
| Minimum Total Supply Voltage | 2.7 V |
| Split-Supply Operation | Down to ±1.35 V |
| Gain-Bandwidth Product | 12 MHz |
| Slew Rate | 4 V/µs |
| Voltage Noise Density | 4 nV/√Hz |
| Distortion | 0.003% |
| Output Swing | Rail-to-rail |
| ESD Protection | 2 kV |
| Latch-Up Immunity | Class A |
| Package | 14-pin SOIC |
| Mounting Type | Surface Mount |
TS974ID 14-pin soic Pin Configuration Guide
Pin configuration for TS974ID (14-pin soic package). This analog component features input, output, and power supply pins. Refer to the manufacturer datasheet for offset null, compensation, and enable pin configurations. Ideal for signal conditioning and amplifier circuits.
No detailed pinout data available for TS974ID.
Refer to the datasheet for full pin configuration.
Typical Applications
TS974ID is suitable for 6 applications: Portable Audio Preamplifier, Battery-Powered Sensor Conditioning, Active Filtering and Equalization, Low-Voltage Data Acquisition, Portable Test and Measurement, Embedded Control Signal Conditioning.
Portable Audio Preamplifier
The TS974ID fits portable audio preamplification because the STMicroelectronics TS97x family provides 4 nV/√Hz noise density and 0.003% distortion in a 14-pin SOIC package. Four amplifiers can support microphone, line, headphone-driver, and monitoring stages without using four separate packages. The 12 MHz bandwidth and 4 V/µs slew rate provide additional margin above typical audio-band requirements. At a 2.7 V minimum supply, the device also supports compact battery-powered equipment, although the designer must verify output swing and common-mode limits for the selected operating point.
Recommended
Battery-Powered Sensor Conditioning
The TS974ID is appropriate for battery-powered sensor conditioning because it operates from 2.7 V to 10 V and supports split supplies down to ±1.35 V. Its four-amplifier arrangement can process multiple sensor channels, while 4 nV/√Hz noise density helps preserve small signals and 12 MHz bandwidth avoids unnecessarily limiting sensor bandwidth. The rail-to-rail output can improve signal swing on low-voltage rails. Input bias current, offset voltage, and common-mode range must still be checked against the sensor source impedance and operating supply.
Recommended
Active Filtering and Equalization
The TS974ID can implement active filters or equalization networks where the 12 MHz gain-bandwidth product provides useful margin over the signal band and the 4 V/µs slew rate supports wider-band waveforms. Its 0.003% distortion specification is valuable when filtering low-level signals in audio or instrumentation systems. The quad SOIC-14 package allows several filter sections to share one footprint. Stability, noise gain, component tolerances, and the actual output amplitude should be evaluated with the selected feedback topology rather than relying only on headline bandwidth.
Recommended
Low-Voltage Data Acquisition
The TS974ID suits low-voltage data-acquisition front ends that need more bandwidth than a basic precision amplifier provides. Its 12 MHz bandwidth can preserve higher-order signal content, while the 4 nV/√Hz noise density benefits measurements of small analog signals. Four channels in one 14-pin SOIC package simplify routing into converters or embedded processors. Designers should use the amplifier within its verified common-mode and output-swing limits, account for ADC input bandwidth, and keep input and feedback traces short to limit interference.
Recommended
Portable Test and Measurement
The TS974ID can serve portable instrumentation requiring four low-noise, relatively high-bandwidth analog channels in a compact surface-mount package. Its 2.7 V to 10 V operating range supports battery-powered instruments, while the 4 V/µs slew rate and 12 MHz bandwidth can handle fast pulses and measurement signals without excessive distortion. Four channels can implement buffering, gain stages, active filtering, or comparator-adjacent analog functions. The enclosure, grounding, power source, and measurement bandwidth should be evaluated together because the IC specification alone does not determine complete instrument accuracy.
Recommended
Embedded Control Signal Conditioning
The TS974ID is useful in embedded control systems that require analog conditioning between sensors, actuators, and a microcontroller or communications controller. Four rail-to-rail-output amplifiers can provide independent buffering for sensor outputs, current-voltage conversion stages, or auxiliary control signals. The 12 MHz bandwidth is more than adequate for many low-frequency control loops while retaining useful performance for faster diagnostics. Supply-current data, input impedance, and common-mode limits must be confirmed from the complete datasheet, and exposed analog pins should be protected against industrial transients.
Recommended
Recommended Products Summary
Engineering reference data for TS974ID — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TS971ID | TS972ID | TS973ID | TS975ID | TL974IPW |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Package | 14-pin SOIC | 14-pin SOIC | 14-pin SOIC | 14-pin SOIC | 14-pin SOIC | 14-pin SOIC |
| Number of Amplifiers | 4 | 4 | 4 | 4 | 4 | 4 |
| Output Swing | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail |
Key Differentiators
- Higher verified dynamic performance within the TS97x family (vs TS971ID)
- Four low-noise channels in one surface-mount package (vs TS972ID)
- Low-voltage operation supports portable systems (vs TL974IPW)
Design Notes
Place the supply bypass capacitors directly between each supply pin and ground, with the shortest possible traces. The TS974ID operates from 2.7 V to 10 V, so unregulated supply noise can consume the available output headroom and degrade the specified noise and distortion performance. Keep the power and ground return paths compact, especially when driving capacitive loads or long external cables.
Route each amplifier’s inverting-input and feedback components close to the corresponding IC pins. Because the device offers 12 MHz gain-bandwidth product and 4 V/µs slew rate, stray capacitance in feedback loops can affect stability or alter the intended filter response. Use a continuous ground plane, avoid routing inputs beneath digital signals, and isolate high-impedance sensor lines from power converters and switching-node traces.
Do not assume that rail-to-rail output swing means the input common-mode range also reaches both rails. The supplied data confirms rail-to-rail output behavior but does not provide the input common-mode limits, offset voltage, bias current, or output-current capability. Check those values in the complete manufacturer datasheet, particularly for rail-to-rail sensor interfaces, and verify the chosen output load against the stability guidance before production release.
For audio and low-level instrumentation, evaluate the complete signal chain at the intended bandwidth rather than using the 4 nV/√Hz noise-density figure alone. The equivalent integrated noise depends on the selected noise bandwidth, resistor noise, source impedance, and gain. Keep the gain high enough to avoid amplifying unnecessary bandwidth, and use stable feedback values that preserve the specified 12 MHz performance and 0.003% distortion behavior.
Compliance Information
The supplied verified data does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is treated as not applicable because TS974ID is presented as a standard general-purpose amplifier rather than an automotive-qualified order code.