TS951IN - 3MHz Rail-to-Rail Op Amp | STMicroelectronics
MPN: TS951IN ✓ Hoạt độngTS951IN Tóm tắt
An operational amplifier is an active analog component that amplifies the difference between its inverting and non-inverting inputs. The TS951IN belongs to the rail-to-rail operational-amplifier category and uses a BiCMOS process that combines CMOS input characteristics with bipolar output-drive capability. Rail-to-rail input common-mode range allows the amplifier to sense signals near the positive and negative supply rails, while rail-to-rail output swing improves dynamic range when the available supply voltage is limited.
Key electrical characteristics include a 3 MHz gain-bandwidth product, 1 V/µs slew rate, and approximately 0.9 mA supply current at 3 V. The 3 MHz bandwidth provides useful speed for audio-frequency buffers, general-purpose signal amplification, active filters, and sensor interfaces, while the 1 V/µs slew rate permits relatively rapid output transitions. The 8-DIP package supports straightforward through-hole assembly and is suitable for prototypes, educational platforms, and applications where a larger package is acceptable.
The TS951IN is built for general-purpose precision and moderate-speed analog work. Its single-amplifier configuration simplifies designs that require one independent signal path, while the low-power operating mode can reduce total system consumption in battery-powered equipment. Because a bipolar output stage is present, careful assessment of output-current capability, capacitive-load stability, and operating temperature is appropriate before assigning it to demanding loads.
Typical applications include low-frequency audio buffer stages, sensor-signal conditioning, active filters, data-acquisition front ends, portable instrumentation, and general analog signal conditioning. The rail-to-rail input capability is especially useful when sensor outputs can approach either supply rail. The rail-to-rail output stage is beneficial in low-voltage systems where a conventional amplifier would clip before approaching the available output range.
When designing with the TS951IN, keep feedback routing short, place compensation and decoupling components close to the device, and verify stability with the actual source impedance and load. Connect the unused input to a defined reference potential, normally the non-inverting input or a mid-supply bias point. Do not substitute a modern CMOS or rail-to-rail amplifier without checking input offset, bias-current, noise, output-drive, and supply-current differences.
This page combines manufacturer family information, distributor identification, package information, and practical design guidance with a parameter comparison against same-package family alternatives. It also distinguishes the TS951IN from the TS952 and TS954 family members, whose electrical characteristics must be checked against the manufacturer datasheet before making a board-level substitution.
Bộ thay thế dễ dàng lắp đặt cho TS951IN — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TS951IN (cùng hình factor và footprint) — khác nhau ở Package, Input Common-Mode Range, Amplifier Type, Output Voltage Swing, Slew Rate.
TS951ID
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →TS952IN
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →TS952ID
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →TS954IN
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →TS954ID
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →TS951IN Tỷ lệ tối đa & tính chất điện
| Amplifier Type | General-purpose operational amplifier |
| Number of Circuits | 1 circuit |
| Technology | BiCMOS |
| Input Common-Mode Range | Rail-to-rail |
| Output Voltage Swing | Rail-to-rail |
| Gain-Bandwidth Product | 3 MHz |
| Slew Rate | 1 V/µs |
| Maximum Supply Voltage | 12 V |
| Optimized Supply Voltage | 3 V and 5 V |
| Điện áp cung cấp | 0.9 mA at 3 V |
| ESD Protection | 2000 V |
| Hộp | 8-DIP (0.300 inch, 7.62 mm pitch) |
| Packaging | Tube |
| Kiểu lắp đặt | Through-hole |
Cấu hình chân TS951IN
| Chân 1 | NC — Not connected |
| Chân 2 | IN- — Inverting input |
| Chân 3 | IN+ — Non-inverting input |
| Chân 4 | V- — Negative supply voltage |
| Chân 5 | OFFSET NULL — Offset-voltage adjustment input |
| Chân 6 | OUT — Amplifier output |
| Chân 7 | V+ — Positive supply voltage |
| Chân 8 | NC — Not connected |
Ứng dụng tiêu biểu
TS951IN phù hợp cho 6 Áp dụngs: Low-Voltage Sensor Signal Conditioning, Portable Instrumentation Front End, Active Audio Filters, Data-Acquisition Input Buffer, General Analog Buffering, Educational and Prototype Analog Circuits.
Low-Voltage Sensor Signal Conditioning
The TS951IN fits sensor interfaces whose output can move close to either supply rail because its input common-mode range is rail-to-rail. Place it in a non-inverting or differential conditioning stage when the sensor bandwidth is well below the device's 3 MHz gain-bandwidth product. The 0.9 mA supply current at 3 V is useful for portable instrumentation, while the 1 V/µs slew rate permits moderate output changes. Confirm the sensor's output range, required gain, and common-mode reference before finalizing the bias network, and verify that the 8-DIP footprint is acceptable for the target assembly.
Được đề xuất
Portable Instrumentation Front End
The TS951IN is suitable for compact, battery-powered instrumentation because it consumes approximately 0.9 mA at a 3 V supply and supports 3 V-optimized operation. Its rail-to-rail input and output characteristics reduce the usable signal range lost to conventional amplifier headroom, which is valuable in compact analog measurement systems. The 3 MHz gain-bandwidth product is appropriate for low-frequency measurement and buffering, not precision instrumentation extending into the megahertz range. Use low-leakage input biasing, maintain predictable reference levels, and validate offset and noise after the selected gain configuration is established.
Được đề xuất
Active Audio Filters
The TS951IN can implement active filters and audio-frequency buffer stages using its 3 MHz gain-bandwidth product and 1 V/µs slew rate. These characteristics provide ample loop bandwidth for common low-frequency filter sections while allowing output transitions suitable for moderate-amplitude audio signals. The rail-to-rail output helps preserve signal amplitude in 3 V or 5 V systems, although output-current capability and THD-related limits must be checked for the selected load. Keep the feedback network compact, place input and output grounding carefully, and confirm stability with the actual source and load impedances.
Được đề xuất
Data-Acquisition Input Buffer
The TS951IN is appropriate as a moderate-speed input buffer in data-acquisition systems that need to handle sensor or divider outputs with limited headroom. Rail-to-rail input operation helps accommodate signals approaching the supply rails, and the 3 MHz bandwidth is sufficient for many low-rate acquisition chains when the source impedance is not excessive. The buffer isolates the source from the following converter or sampling network, but it does not replace the converter's required anti-alias and settling network. Verify input bias-current effects, output drive, converter input capacitance, and acquisition timing before using the amplifier on fast sampled signals.
Được đề xuất
General Analog Buffering
The TS951IN provides a straightforward solution for impedance buffering, level translation within a supply range, and general-purpose analog gain stages. Rail-to-rail input and output behavior makes it useful when the available headroom is small, while its single-channel architecture avoids allocating two amplifiers when only one independent path is required. The 8-DIP package is convenient for prototypes, educational boards, repair assemblies, and through-hole industrial equipment. For precision or high-current applications, compare offset voltage, input bias current, output current, noise, and load stability before standardizing this device across multiple designs.
Được đề xuất
Educational and Prototype Analog Circuits
The TS951IN is well suited to educational and prototype analog circuits because it combines rail-to-rail behavior, 3 MHz bandwidth, low-power operation, and a straightforward 8-DIP package. Students and engineers can use it to construct amplifier, comparator-interface, active-filter, and sensor-conditioning experiments without dealing with a very small package. The tube packaging also facilitates breadboard, perfboard, and through-hole prototype construction. Because it is a general-purpose amplifier rather than a precision laboratory reference, measurements involving nanovolt offsets, microvolt noise, very high source impedance, or exact rail-to-rail limits require additional instrumentation and datasheet review.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TS951IN — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | TS951ID | TS952IN | TS952ID | TS954IN | TS954ID |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 8-DIP (0.300 inch, 7.62 mm pitch) | 8-DIP (0.300 inch, 7.62 mm pitch) | 8-DIP (0.300 inch, 7.62 mm pitch) | 8-DIP (0.300 inch, 7.62 mm pitch) | 8-DIP (0.300 inch, 7.62 mm pitch) | 8-DIP (0.300 inch, 7.62 mm pitch) |
| Amplifier Family | TS951 | TS951 | TS952 | TS952 | TS954 | TS954 |
| Number of Circuits | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit | 1 circuit |
| Gain-Bandwidth Product | 3 MHz | 3 MHz | 3 MHz | 3 MHz | 3 MHz | 3 MHz |
| Slew Rate | 1 V/µs | 1 V/µs | 1 V/µs | 1 V/µs | 1 V/µs | 1 V/µs |
| Input Common-Mode Range | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail |
| Output Voltage Swing | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail |
| Offset-Voltage Variant | TS951 general-purpose variant | TS951 general-purpose variant | TS952 offset variant | TS952 offset variant | TS954 low-offset variant | TS954 low-offset variant |
Bảo phân biệt quan trọng
- Low-power 3 V operation (vsTS951ID)
- Same-package offset-variant choices (vsTS954IN)
- Through-hole 8-DIP assembly compatibility (vsTS952IN)
Ghi chú thiết kế
Route the inverting-input feedback connection as a short, compact loop and avoid routing it beside high-current or high-impedance input nets. The 3 MHz gain-bandwidth product makes stray capacitance in the feedback node capable of affecting stability or closed-loop response. Place feedback and gain-setting components close to the relevant pins, connect the bypass capacitor directly to the supply terminals, and keep the unused input connected to a defined reference potential.
Do not treat the TS951ID, TS952, or TS954 family variants as exact equivalents without checking the electrical table. The shared 8-DIP footprint simplifies board substitution, but offset voltage, noise, input bias current, common-mode rejection, and temperature grade can differ by family and suffix. Verify those limits against the original design, recalibrate offset-sensitive gain stages, and confirm the correct manufacturer orderable part number before production release.
The manufacturer identifies the TS951 family as optimized for 3 V and 5 V operation, with approximately 0.9 mA supply current at 3 V. Use a supply within the family operating range and provide local high-frequency decoupling at the V+ and V- pins. If operating at 12 V, check output swing, load current, package dissipation, and absolute maximum limits because the device is not characterized equally at every supply voltage.
Thông tin tuân thủ
The manufacturer datasheet identifies the device as an industrial general-purpose operational amplifier, but no explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations were established for this record.
