L2720W13TR - Dual 1A Power Op Amp | STMicroelectronics
MPN: L2720W13TR ✓ Hoạt độngL2720W13TR Tóm tắt
A power operational amplifier is a type of operational amplifier designed to drive heavier loads while maintaining stable operation within its supply rails. The L2720W belongs to the operational-amplifier hierarchy, which includes general-purpose amplifiers, high-current output amplifiers, and power-management signal-conditioning ICs. Unlike a discrete design combining a small-signal op amp with external transistor drivers, the L2720W integrates the drive capability into one IC and can reduce external component count in power-conversion feedback loops.
Key characteristics include two independent amplifier channels, 1 A output-current capability, a 2 V/µs slew rate, single- or split-supply operation, a large common-mode input range, low input-offset voltage, and ground-compatible inputs. The low-dropout architecture supports power-supply designs where the regulator output must approach the input rail. Split-supply operation allows the same device to control a midpoint biased around ground, while a single positive supply can support ground-referenced signal systems.
The wide-body SO16 package provides separate output-current and thermal considerations that differ from a standard SOIC. Because the amplifier can source or sink high current, PCB copper area, output-current limits, supply bypassing, and heat dissipation are central to reliable operation. The manufacturer's electrical characteristics are specified over a -40 °C to 125 °C ambient-temperature range under defined supply conditions.
Typical applications include servo amplifiers, regulated linear power supplies, motor and actuator control, audio power stages, sensor-conditioning paths, and industrial process-control systems. In a servo loop, the L2720W can amplify an error signal and drive a load directly when the load remains within its thermal and electrical limits. In a power-supply feedback path, its 1 A output capability reduces the need for an external booster stage.
Designers should check the output-current and thermal limits at the intended voltage, provide low-impedance bypassing at the supply pins, and use adequate PCB copper for heat spreading. The output-current capability does not eliminate the need to limit current during overload or startup. Verify absolute maximum ratings, output-swing behavior, stability requirements, and thermal conditions against the manufacturer datasheet before committing the SO16 footprint to a board.
This page consolidates the device identity, operating characteristics, package information, sourcing guidance, and practical design considerations into one engineering-oriented reference. It also identifies possible same-footprint alternatives while distinguishing confirmed facts from parameters that require comparison against the manufacturer documentation.
Bộ thay thế dễ dàng lắp đặt cho L2720W13TR — 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 L2720W13TR (cùng hình factor và footprint) — khác nhau ở Amplifier Type, Package, Slew Rate, Supply Voltage Range.
L2720D13TR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →L2720D
✅ Drop-InLiên hệ để biết giá
L272D013TR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TCA0372DWG
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TCA0372BDWR2G
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
L2720W13TR Tỷ lệ tối đa & tính chất điện
| Amplifier Type | Low-dropout dual power operational amplifier |
| Number of Amplifier Circuits | 2 circuits |
| Output Current Capability | 1 A |
| Slew Rate | 2 V/µs |
| Supply Voltage Range | 4.0 V to 28 V |
| Khoảng nhiệt độ hoạt động | -40 °C to 125 °C |
| Hộp | SO16 wide, 7.50 mm width |
| Package Type | 16-SOIC surface mount |
| Packaging | Tape and reel |
| Supply Configuration | Single or split supply |
Hướng dẫn cấu hình chân L2720W13TR 16-soic surface mount
Cấu hình chân cho L2720W13TR (16-soic surface mount gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho L2720W13TR.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
L2720W13TR phù hợp cho 6 Áp dụngs: Servo Amplifier Control, Linear Power-Supply Feedback, Motor and Actuator Drive, Audio Power Stage, Industrial Sensor Conditioning, Precision Control and Instrumentation.
Servo Amplifier Control
The L2720W13TR is well suited to servo-amplifier error paths because its two channels, 1 A output-current capability, and 2 V/µs slew rate can drive higher-current actuator commands more effectively than a conventional small-signal dual op amp. A typical implementation compares a command or feedback signal and applies the amplified error to a motor or positioning stage. The wide-body SO16 outline should be placed on substantial copper to spread heat generated during high-current operation. Before finalizing the loop, verify output swing at the selected supply voltage, current limiting, compensation, and stability with the intended load.
Được đề xuất
Linear Power-Supply Feedback
In a regulated power-supply application, the L2720W13TR can amplify the difference between a feedback voltage and a reference and directly drive a power transistor or MOSFET stage. Its low-dropout construction, 4.0 V to 28 V operating range, and 1 A output-current capability make it useful where a conventional error amplifier would require a separate output buffer. The dual-channel arrangement can serve a main regulation loop and a secondary auxiliary function when the circuit topology permits. Compensation must be evaluated against the power-stage capacitance and load range, while output-current and thermal limits must remain below worst-case conditions.
Được đề xuất
Motor and Actuator Drive
The L2720W13TR can serve as a high-current linear driver for small motors, solenoids, and actuator stages when the load current stays within the device limits. Its 1 A output-current capability and 2 V/µs slew rate allow the amplifier output to follow command changes more quickly than a standard precision operational amplifier. In split-supply operation, the output can move above and below ground, which is useful for bidirectional actuator control. Engineers should add suitable current limiting, account for inductive load protection, and verify that the SO16 thermal design prevents excessive junction temperature.
Được đề xuất
Audio Power Stage
The L2720W13TR can amplify a line-level signal into a higher-current audio drive stage where the load power is moderate and a linear amplifier is acceptable. Its dual-circuit arrangement supports left and right channels, while the 2 V/µs slew rate helps reproduce larger signal transitions and the 1 A output capability provides more load drive than a conventional dual op amp. Ground-compatible inputs simplify single-supply designs, and split supplies support centered audio waveforms. Confirm output distortion, bandwidth, stability, headroom, and thermal dissipation in the target load rather than relying only on the headline current rating.
Được đề xuất
Industrial Sensor Conditioning
The L2720W13TR can provide the high-current output stage needed when a sensor or transducer must drive an instrumentation input farther than a standard precision amplifier can support. Its large common-mode input capability and ground-compatible inputs are useful for industrial signals referenced to ground, while the wide operating-temperature range covers harsh ambient conditions. The 1 A output rating should be treated as a maximum capability rather than a design target; use it only when the driven input actually requires high current. Input filtering, output stability, common-mode headroom, and PCB isolation should be verified with the sensor and cable arrangement.
Được đề xuất
Precision Control and Instrumentation
The L2720W13TR is useful in control and instrumentation blocks that need an error amplifier and a relatively heavy external load without adding a discrete output stage. Its dual channels can reduce component count in multi-loop equipment, and the wide 4.0 V to 28 V supply range accommodates multiple industrial power rails. The device is less appropriate than a precision op amp when the task only requires microamp-level output current, because the power stage introduces its own thermal and stability considerations. Select it when load drive is valuable, then validate offset, bandwidth, output swing, noise-sensitive signal paths, and compensation under real loading.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho L2720W13TR — 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 | L2720D13TR | L2720D | L272D013TR | TCA0372DWG | TCA0372BDWR2G |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments |
| Package | SO16 wide | SO16 wide | SO16 wide | SO16 wide | SO16 wide | SO16 wide |
| Amplifier Configuration | Dual | Dual | Dual | Dual | Dual | Dual |
| Single or Split Supply | Single or split supply | Single or split supply | Single or split supply | Single or split supply | Single or split supply | Single or split supply |
| Ground-Compatible Inputs | Yes | Yes | Yes | Yes | Yes | Yes |
| Special Features | Low-drop dual power operational amplifier | Higher-current L2720 family variant | L2720 power operational amplifier family | L272D power operational amplifier family | Power operational amplifier with integrated gain | Power operational amplifier with integrated gain |
Bảo phân biệt quan trọng
- Single-package high-current output capability (vsTCA0372DWG)
- Simpler same-family replacement path (vsTCA0372BDWR2G)
- Lower slew rate than the higher-current L2720D variant (vsL2720D13TR)
Ghi chú thiết kế
Treat the 1 A output rating as a capability that must be checked against the DC output-current limit and SO16 thermal resistance at the actual ambient temperature. Estimated: power dissipated by the output stage equals approximately (VOUT − VS/2) × IOUT for a split-supply stage centered at half the supply; multiply the result by the package thermal resistance to estimate junction-temperature rise. Add copper around the device, verify the datasheet limits, and avoid sustained operation near the current and temperature maxima.
Place the supply bypass capacitors close to the power pins and connect their ground returns to a low-impedance plane. The wide SO16 footprint should be oriented to give the output pins a direct, short path to the load and adequate copper for heat spreading. Keep high-current output wiring away from sensitive input and feedback traces, and check the package drawing carefully because SO16-wide and narrow SOIC-16 outlines are not mechanically interchangeable.
Do not assume that two amplifiers in the same IC can each sustain the headline output current simultaneously. Derate each channel according to the thermal limits for the actual package configuration and PCB layout. Also verify the output-swing limits, load stability, compensation network, and maximum differential input voltage. Using a higher-current variant without changing compensation or thermal design can cause oscillation or device damage.
For servo and power-supply loops, keep the feedback divider and error-amplifier input nodes away from the output and power-stage currents. Use a small, quiet ground return for reference and feedback components, while providing a separate low-impedance path for load current. Ground-compatible input capability simplifies single-supply interfacing, but it does not remove the need to keep feedback references within the actual common-mode and output-swing limits.
Thông tin tuân thủ
No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals statement appears in the available manufacturer and distributor information. The L2720W13TR is an industrial dual power operational amplifier, and AEC-Q100 qualification is therefore listed as not applicable.
