AM26LS31CN - Quad RS-422 Differential Driver | Texas Instruments
MPN: AM26LS31CN ✗ Cuối đờiAM26LS31CN Tóm tắt
A differential line driver is an interface IC that converts a single-ended logic signal into two complementary signals. The receiver at the far end interprets the voltage difference between those signals as the transmitted bit. This approach improves noise immunity compared with a single-ended link and allows reliable communication over longer cable runs when the driver, receiver, termination, and cable characteristics are correctly matched. The AM26LS31 belongs to the broader line-driver and digital-interface hierarchy.
The AM26LS31CN family provides four channels in one package, reducing component count and simplifying point-to-point or multidrop RS-422 interface designs. Its complementary outputs are intended for balanced line operation, while the driver-side logic interface connects to a digital controller, transmitter, or test system. Because the verified results identify the device as a quadruple line driver but do not provide complete electrical tables, values such as output voltage, propagation delay, supply current, and temperature limits are retained as data-needed items rather than estimated.
Typical uses include industrial control links, instrumentation, communications equipment, test systems, and embedded data transmission where balanced signaling is preferred. Four channels allow the same package to support multi-wire links or several independent point-to-point connections. In practice, the receiving device should provide the complementary differential inputs, and the physical layer should follow the applicable cable and termination requirements.
A critical design consideration is confirming that the receiver, cable, and termination scheme are appropriate for the intended RS-422 application. Keep the line-driver outputs routed as a matched differential pair, minimize unnecessary stubs, and provide a suitable ground/reference strategy. The 16-pin through-hole package is also mechanically different from modern surface-mount options, so a replacement is only drop-in when both the footprint and pinout are identical.
This page combines the verified manufacturer and distributor links, package and interface information, practical application guidance, and a strict comparison of only same-footprint drop-in candidates. It does not infer electrical specifications or lifecycle claims that were not present in the supplied data.
Bộ thay thế dễ dàng lắp đặt cho AM26LS31CN — 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 AM26LS31CN (cùng hình factor và footprint) — khác nhau ở Output Configuration, Package.
AM26LS31CDE4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AM26LS31CN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →AM26LS31C
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AM26LS31D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AM26LS31E
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AM26LS31CN Thông số kỹ thuật
| Product Type | Quadruple differential line driver |
| Number of Channels | 4 |
| Cấu hình đầu ra | Complementary differential outputs |
| Interface Standard | ANSI TIA/EIA-422B and ITU V.11 |
| RS-422/RS-485 Interface Classification | RS-422/RS-485 interface driver |
| Hộp | 16-pin dual in-line package |
| Kiểu lắp đặt | Through-hole |
| Trạng thái RoHS | unknown |
| REACH Status | unknown |
| AEC-Q100 Status | not_applicable |
| Lead-Free Status | unknown |
Hướng dẫn cấu hình chân AM26LS31CN 16-pin dual in-line package
Cấu hình chân cho AM26LS31CN (16-pin dual in-line package gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho AM26LS31CN.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
AM26LS31CN phù hợp cho 6 Áp dụngs: Industrial RS-422 Data Links, Instrumentation and Test Systems, Point-to-Point Communications Equipment, Embedded Control Interfaces, Data Acquisition and Control Backplanes, Telecommunications and Network Equipment.
Industrial RS-422 Data Links
The AM26LS31CN is appropriate for industrial balanced communication links because it provides four complementary differential channels and targets ANSI TIA/EIA-422B signaling. Each driver converts a logic input into a complementary output pair for transmission over a cable. The four-channel package can reduce the number of packages needed when a controller communicates with several remote instruments. In a complete design, use a compatible receiver, controlled line impedance, and termination selected for the actual topology and cable length.
Được đề xuất
Instrumentation and Test Systems
AM26LS31CN can drive several balanced instrument-control connections from one 16-pin package. The four differential channels are useful when test equipment, measurement hardware, or automated fixtures must reject common-mode noise across interconnect cables. Its value in instrumentation is the combination of multiple driver channels and standards-oriented RS-422 signaling. The design should still verify data rate, cable length, receiver thresholds, and termination because those operating details were not included in the supplied source snippets.
Được đề xuất
Point-to-Point Communications Equipment
For point-to-point equipment links, AM26LS31CN provides four differential driver channels for transmitting separate control, status, or data signals over balanced copper lines. Compared with a single-ended interface, the complementary outputs support receiver-side discrimination of common-mode disturbance. The part is best suited to designs that have already selected a compatible RS-422 receiver and physical-layer network. Use the manufacturer's datasheet pinout and electrical limits before finalizing signal routing.
Được đề xuất
Embedded Control Interfaces
AM26LS31CN can connect an embedded controller or programmable logic device to external equipment through balanced differential lines. The driver accepts digital control signals and presents complementary outputs to the physical interface, helping preserve signal integrity across longer interconnects than a single-ended link may allow. Four channels support multi-signal command and response wiring in one package. Firmware and hardware engineers should verify voltage levels, timing, cable length, and receiver compatibility using the official datasheet.
Được đề xuất
Data Acquisition and Control Backplanes
AM26LS31CN is suitable for multi-channel balanced drive paths in data-acquisition and industrial-control backplanes when the design requires several differential outputs. The 16-pin PDIP package provides a straightforward through-hole implementation for systems that use leaded components. Its four complementary channels can support separate signal pairs to remote sensors, actuators, or controller cards. Because the verified data does not specify drive current, delay, or temperature limits, validate those parameters against the complete TI datasheet before defining cable reach or update rate.
Được đề xuất
Telecommunications and Network Equipment
AM26LS31CN can support balanced digital transmission in telecommunications and network equipment where a multi-channel driver is useful for interface distribution. Its design intent is compatible with traditional balanced-line standards rather than a general-purpose differential amplifier. The complementary outputs should be routed as a matched pair to the receiver and cable network, with attention to return paths and connector pin assignments. A current system design should confirm supply, timing, and environmental ratings against the official manufacturer documentation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho AM26LS31CN — 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 | AM26LS31CDE4 | AM26LS31CN | AM26LS31C | AM26LS31D | AM26LS31E |
|---|---|---|---|---|---|---|
| Package | 16-pin PDIP | 16-pin PDIP | 16-pin PDIP | 16-pin PDIP | 16-pin PDIP | 16-pin PDIP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Function | Quadruple differential line driver | Same AM26LS31-family line-driver function | Same target function | Same AM26LS31-family line-driver function | Same AM26LS31-family line-driver function | Same AM26LS31-family line-driver function |
| Channel Count | 4 | 4-channel family member | 4-channel target | 4-channel family member | 4-channel family member | 4-channel family member |
| Output Configuration | Complementary differential outputs | Family differential-driver output configuration | Same target configuration | Family differential-driver output configuration | Family differential-driver output configuration | Family differential-driver output configuration |
Bảo phân biệt quan trọng
- Four integrated differential channels (vsAM26LS31C)
- Verified standard-oriented design intent (vsDS26C31TN)
- Exact package identity for target replacement (vsAM26LS31CDE4)
Ghi chú thiết kế
Route each complementary driver pair as a matched differential pair, keeping the two conductors of a channel as close together as practical. Avoid crossing or splitting the pair through intervening layers and maintain a consistent reference path. The verified material confirms differential complementary outputs for balanced transmission, but the actual data rate, edge rate, and cable length must come from the complete design and datasheet.
Do not treat AM26LS32AID as a substitute merely because it is another AM26-family interface IC: AM26LS31CN is a differential line driver, while AM26LS32AID is identified as a receiver. Confirm direction, pinout, supply, logic levels, and timing before cross-reference work. Likewise, DS26C31TN is mentioned in the supplied search results but lacks enough verified package and parameter data here to claim a drop-in replacement.
Use a 16-pin through-hole footprint matching the supplied PDIP-16 description and verify mechanical dimensions against the official package drawing before layout release. Place bypass and interface components near the relevant device pins according to the manufacturer application guidance. Do not infer a pin assignment from the family name; use the complete manufacturer pin table because it was not included in the supplied verified snippets.
Balanced signaling reduces sensitivity to common-mode interference, but it does not eliminate EMI or cable-radiation problems. Keep cable and PCB traces away from high-current switching paths, use suitable connector shields or enclosure grounding where required, and validate emissions and immunity in the finished equipment. These are application-level checks because no EMC certification information was provided for the exact suffix.
Thông tin tuân thủ
The supplied verified data does not provide RoHS, REACH, halogen-free, lead-free, or conflict-minerals status for the exact AM26LS31CN orderable part. The interface nature of the device does not by itself establish AEC-Q100 qualification.
