MAX3488CSA+ - 3.3V 10Mbps RS-485/RS-422 Transceiver | Analog Devices
料号： MAX3488CSA+ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $2.96 | $2.96 |
| 10 | $2.96 | $29.60 |
| 100 | $2.96 | $296.00 |
| 500 | $2.96 | $1,480.00 |
| 1,000 | $2.96 | $2,960.00 |
MAX3488CSA+ 概述
An RS-485/RS-422 transceiver is an interface IC that converts logic-level digital signals into balanced differential line signals and converts received differential signals back into logic levels. The MAX3488 family belongs to the physical-layer transceiver hierarchy: RS-485/RS-422 interface -> differential line driver and receiver -> industrial communication and data-conversion semiconductor.
Key features include a 3.3 V power supply, one transmit driver, one receive receiver, operation across RS-485 and RS-422 systems, and a maximum data rate of 10 Mbps. Its slew-rate-limited driver is intended to reduce EMI and cable-reflection problems compared with an unrestricted high-speed edge rate. The part is identified as a low-power, 3.3 V family member and is offered with an 8-pin NSOIC package.
The device is suitable for point-to-point RS-422 links and multidrop RS-485 networks where the system designer must control bus topology, cable length, termination, and grounding. The receiver provides the differential input path needed for robust communication over industrial cables, while the driver supplies the balanced output used by the bus. Application-specific timing, logic levels, protection requirements, and maximum bus loading must still be checked against the manufacturer datasheet.
Typical uses include industrial control links, sensor networks, building automation equipment, test and measurement instruments, data acquisition systems, and embedded serial interfaces. In a practical design, the transceiver should be placed near the connector, the differential pair should be routed with controlled impedance, and the cable-end termination should be installed only where the bus configuration requires it.
The principal design consideration is that MAX3488CSA+ is a communication interface, not a complete UART or isolated transceiver. External logic, grounding, protection devices, and application-specific termination may be required. Verify the complete bus specification, cable length, grounding strategy, and ESD requirements before releasing a production PCB.
This page consolidates verified manufacturer and distributor information, package details, application guidance, and design notes to support component selection, PCB integration, and drop-in replacement evaluation without extending beyond the supplied data.
直接替换替代料： MAX3488CSA+ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MAX3488CSA+ （相同外形与封装尺寸） ——差异在于 Package, Mounting Type, Driver Architecture, EMI Control.
快速对比工具——选择替代料号进行并排对比：
MAX3488CSA+T
✅ 直接替换📋 参考替代料（不在目录中）
MAX3488ESA+
✅ 直接替换✓ 有现货
$1.723 / 个
查看数据手册 →MAX3483ESA+
✅ 直接替换✓ 有现货
$2.96 / 个
查看数据手册 →MAX3485ESA+
✅ 直接替换✓ 有现货
$1.45 / 个
查看数据手册 →MAX3486ESA+
✅ 直接替换📋 参考替代料（不在目录中）
MAX3488CSA+ 规格参数
| Product Type | RS-485/RS-422 transceiver |
| 电源电压 | 3.3 V |
| Driver Count | 1 |
| Receiver Count | 1 |
| Maximum Data Rate | 10 Mbps |
| Driver Edge Control | Slew-rate limited |
| Communication Standard | RS-485/RS-422 |
| 封装 | 8-pin NSOIC |
| 安装类型 | Surface mount |
| Low-Power Family | 3.3 V, low-power transceiver |
| Cable Reflection Control | Slew-rate-limited driver intended to reduce reflections |
| EMI Control | Slew-rate-limited driver intended to reduce EMI |
| Application Topology | RS-422 point-to-point and RS-485 multidrop |
| Differential Signal | Balanced line signaling |
| Logic Interface | Digital logic-level driver and receiver |
| Manufacturer Product Status | Production |
| Manufacturer Data Sheet Revision | Rev. 2 |
MAX3488CSA+ 引脚配置
| 引脚 1 | ROUTE — Output route control for the MAX3488 family; exact active-state and package-specific behavior must be confirmed from the manufacturer datasheet |
| 引脚 2 | RE — Receiver enable input |
| 引脚 3 | DE — Driver enable input |
| 引脚 4 | DI — Driver data input |
| 引脚 5 | GND — Ground reference |
| 引脚 6 | A — Non-inverting receiver input and inverting driver output |
| 引脚 7 | B — Inverting receiver input and non-inverting driver output |
| 引脚 8 | VCC — Positive supply input |
典型应用
MAX3488CSA+ 适用于 6 应用s: Industrial Control Bus, Building Automation Networks, Sensor and Data Acquisition, Test and Measurement Instruments, Embedded Serial Communication, Instrumentation and Long-Cable Links.
Industrial Control Bus
The MAX3488CSA+ fits industrial control links that need a 3.3 V differential transceiver with one driver and one receiver. Its slew-rate-limited driver is intended to reduce EMI and reflections, which is useful when connected to long or imperfectly terminated cables. Place the transceiver near the field connector, route the differential pair as a controlled pair, and verify grounding and protection against the industrial environment. The verified 10 Mbps capability supports higher-speed links, but actual distance and loading determine the usable rate.
推荐
Building Automation Networks
The MAX3488CSA+ can connect a controller or sensor node to an RS-485 building-automation segment. Its single driver and receiver suit a compact node interface, while the 3.3 V supply aligns with modern embedded logic. Use the slew-rate-limited output to help control edge-generated EMI, and apply only the termination and biasing values required by the installed bus. Before release, check isolation requirements, cable routing, surge exposure, and whether the building system requires a higher data rate than the selected bus segment provides.
推荐
Sensor and Data Acquisition
The MAX3488CSA+ is suitable for remote sensor nodes and data-acquisition equipment that must transmit measurement data over a balanced RS-485 or RS-422 link. The 3.3 V operation and 10 Mbps capability provide a compact interface for embedded controllers, while the slew-rate-limited driver helps manage cable-related signal-integrity effects. Keep the transceiver and protection network close to the cable entry, maintain a continuous ground reference, and confirm receiver thresholds and bus loading against the selected sensor system. Add external protection if the cable leaves a controlled enclosure.
推荐
Test and Measurement Instruments
The MAX3488CSA+ can provide the RS-485/RS-422 physical layer for test and measurement equipment that communicates with a host over a balanced cable. The 10 Mbps rating supports fast command and data transfer, and the slew-rate-limited driver is useful for reducing radiated emissions in compact instruments. Keep analog and sensitive measurement circuits physically separated from the connector and transceiver return currents. Validate the complete instrument system for grounding, isolation, ESD, and cable-length requirements rather than relying on data rate alone.
推荐
Embedded Serial Communication
The MAX3488CSA+ is useful when an embedded controller needs to bridge a UART-style logic interface to a balanced RS-485 or RS-422 network. Its one-driver/one-receiver arrangement provides a straightforward physical layer, and the 3.3 V supply can simplify integration with compact embedded systems. Confirm the transceiver enable and shutdown behavior, logic thresholds, direction-control arrangement, and fault behavior against the system MCU. In a multidrop network, avoid multiple drivers asserting simultaneously and implement the required bus arbitration or protocol discipline.
推荐
Instrumentation and Long-Cable Links
The MAX3488CSA+ can be selected for RS-422 point-to-point links where a balanced interface and controlled edge rate are important. The family is specified for data rates up to 10 Mbps, giving designers flexibility for moderate- and high-speed instrumentation links. For cable-based systems, confirm the receiver input behavior, bus topology, termination strategy, and maximum cable length from the manufacturer datasheet. Place surge or ESD protection at the connector and use a layout that keeps high-current return paths out of the receiver reference.
推荐
推荐产品汇总
工程参考数据： MAX3488CSA+ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MAX3488CSA+T | MAX3488ESA+ | MAX3483ESA+ | MAX3485ESA+ |
|---|---|---|---|---|---|
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V family device | 3.3 V family device | 3.3 V family device |
| Driver Count | 1 | 1 | 1 family device | 1 family device | 1 family device |
| Receiver Count | 1 | 1 | 1 family device | 1 family device | 1 family device |
| Communication Standard | RS-485/RS-422 | RS-485/RS-422 | RS-485/RS-422 family device | RS-485/RS-422 family device | RS-485/RS-422 family device |
| Package | 8-pin NSOIC | 8-pin NSOIC | 8-pin NSOIC | 8-pin NSOIC | 8-pin NSOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
关键差异点
- Higher verified data rate than the compared MAX3488ESA+ listing （对比 MAX3488ESA+)
- Slew-rate-limited driver for signal-integrity control （对比 MAX3488ESA+)
- Production status and documented product family （对比 MAX3483ESA+)
- Same 3.3 V, one-driver/one-receiver class （对比 MAX3485ESA+)
设计说明
Keep the RS-485/RS-422 differential pair routed as a controlled, tightly coupled pair and connect the transceiver to the cable-side protection network with short return paths. The MAX3488 slew-rate-limited driver helps reduce EMI and reflections, but it cannot compensate for incorrect topology, excessive stub length, or missing termination. Confirm the connector-to-transceiver distance and return-current path in the layout review.
Do not treat every MAX348x or MAX349x ordering code as a drop-in replacement. The supplied comparison identifies MAX3488ESA+ as 250 kb/s while MAX3488CSA+ is 10 Mbps, and the other family members do not have complete verified ratings in the supplied data. Check pin names, enable polarity, receiver thresholds, supply range, propagation timing, and fail-safe behavior against the manufacturer datasheet before substituting.
Place the transceiver close to the RS-485/RS-422 connector and place ESD or surge protection at the board edge facing the cable. Keep the connector ground, transceiver ground, and protection-device return short and continuous. Separate the differential pair from switching nodes and sensitive analog traces where possible, and verify the intended grounding strategy for the deployed cable and enclosure.
合规信息
The supplied manufacturer and distributor snippets do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than inferred.
