ISL84762IU - 600mOhm Dual SPDT Analog Switch | Renesas
부품 번호: ISL84762IU ✓ 활성ISL84762IU 개요
An analog switch is a semiconductor device that connects or disconnects an analog signal path under digital control. The SPDT configuration selects one of two terminals from a common terminal, while the dual-circuit architecture provides two independently controlled switches. The ISL84762IU combines this routing function with low on-resistance, low-voltage operation, and a compact surface-mount package suitable for space-constrained equipment.
Key characteristics include a 120 MHz bandwidth, a 6ns transition time, a 14ns switching time, and a 224pF switch capacitance. The operating temperature range is -40°C to +85°C. These characteristics are important for systems that route signals generated by sensors, converters, amplifiers, or data-acquisition front ends while command signals are driven by low-voltage digital logic.
The device is described as ultra-low-on-resistance and low-voltage, with operation from 1.65V to 3.6V. Its on-resistance value must be interpreted together with the manufacturer test conditions, including supply voltage and signal amplitude, because the effective resistance and switching behavior can vary with operating conditions. Control pins support 1.8V-compatible digital operation when the device operates from a 3V supply.
Typical uses include portable measurement systems, battery-powered test equipment, mobile-phone and handheld signal routing, communication interfaces, and analog front ends requiring two independent SPDT paths. The compact 10-pin MSOP footprint helps reduce board area, while the bidirectional switch structure supports signal routing in either direction.
Designers should verify control-pin logic levels, supply sequencing, allowable analog signal range, and switching transients against the manufacturer datasheet. Keeping routing traces short and placing the device near the signal source helps limit parasitic capacitance and interference, particularly when driving sensitive analog nodes.
This product page combines the core electrical characteristics, package information, application guidance, and replacement considerations into an engineering-focused view of the ISL84762IU. It also highlights the limits of a drop-in replacement decision when package geometry and control behavior must be checked rather than inferred from the switch function alone.
드롭인 대체품: ISL84762IU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청ISL84762IU 최대 정격 & 전기적 특성
| Device Type | Dual SPDT analog switch |
| Number of Circuits | 2 circuits |
| Switch Configuration | 2:1 SPDT per circuit |
| Nominal On-Resistance | 600 mOhm |
| Low-Voltage On-Resistance | 350 mOhm |
| Supply Voltage Range | 1.65 V to 3.6 V |
| Signal Bandwidth | 120 MHz |
| Transition Time | 6 ns |
| Switching Time | 14 ns |
| Switch Capacitance | 224 pF |
| 동작 온도 범위 | -40°C to +85°C |
| 패키지 | 10-pin MSOP |
| Number of Terminals | 10 terminals |
| 실장 유형 | Surface mount |
| Signal Direction | Bidirectional |
| Control Compatibility | 1.8 V logic-compatible with a single 3 V supply |
| Supply Configuration | Single supply |
ISL84762IU 10-pin msop 핀 구성 가이드
ISL84762IU(10-pin msop 패키지)의 핀 구성입니다. 핀 번호, 기능, 연결 다이어그램은 제조사 데이터시트에 정의되어 있습니다. 정확한 풋프린트와 솔더링 지침은 해당 문서를 참조하십시오.
다음에 대한 상세 핀아웃 데이터 없음: ISL84762IU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ISL84762IU 적합 용도: 6 애플리케이션s: Portable Data-Acquisition Systems, Battery-Powered Instrumentation, Communication Signal Routing, Analog Sensor Multiplexing, Handheld Device Signal Paths, Automated Test and Measurement.
Portable Data-Acquisition Systems
The ISL84762IU fits compact data-acquisition equipment that must route sensor or conditioning signals through two independently selected paths. Its 1.65V to 3.6V operating range aligns with low-voltage mixed-signal systems, while the 10-pin MSOP package preserves board area. A 120 MHz bandwidth and 6ns transition time support faster signal paths than slow mechanical or basic CMOS switch arrangements. In a practical implementation, the two common terminals can feed measurement channels while their switched terminals select different sensor or reference networks. Designers should still evaluate the 224pF switch capacitance against the source impedance and acquisition settling requirements, particularly in high-gain or precision measurements.
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Battery-Powered Instrumentation
The ISL84762IU is appropriate for portable instruments operating from low-voltage rails because its single-supply range is 1.65V to 3.6V. Two independent SPDT networks can select test paths, calibration sources, or system signals without adding a second switch package. Its compact MSOP outline assists board-area reduction, and the stated 6ns transition time supports responsive path selection. The principal design consideration is ensuring that injected charge, switching transients, and the 224pF capacitance do not disturb high-impedance measurements. Place the switch near the measured node and compare settling behavior with the front-end acquisition time rather than relying only on the nominal switching time.
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Communication Signal Routing
The ISL84762IU can support compact bidirectional routing in communication and connectivity equipment that uses a low-voltage supply. Its 120 MHz bandwidth provides useful margin for higher-speed signal paths, while the dual 2:1 arrangement allows two routes to be selected independently. The control interface accepts 1.8V-compatible logic when the device runs from 3V, making it suitable for systems that partition low-voltage digital command signaling from analog or RF-adjacent routing. Use short PCB traces and a solid ground reference to minimize coupling. Verify that the voltage applied to any switched terminal remains inside the manufacturer-defined limits, and assess insertion loss and return loss separately when the signal spectrum extends toward the bandwidth limit.
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Analog Sensor Multiplexing
The ISL84762IU is useful when a sensor interface must select among signal sources or route a sensor output to different processing blocks. Its bidirectional switch paths, 350mOhm-listed low on-resistance, and 6ns transition time can reduce path-related loading when the source impedance is moderate. The two SPDT switches provide independent routing without requiring a larger multiplexer package. However, the 224pF capacitance can influence settling time for high-impedance sensors, so acquisition systems should characterize the complete source, switch, amplifier, and ADC network. Keep the routed node close to the switch, use a defined ground reference, and validate the control sequence so that unused paths do not introduce unexpected loading or transients.
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Handheld Device Signal Paths
The ISL84762IU suits handheld and mobile equipment in which two low-voltage signals must be routed within a constrained board area. The 10-pin MSOP package supports compact layouts, while operation from 1.65V to 3.6V covers common low-voltage rails. With 1.8V-compatible control available from a 3V supply, the device can connect to compact digital control logic without increasing the control voltage. Its 120 MHz bandwidth is adequate for many fast internal routing tasks. Nevertheless, engineers should avoid applying the switch as a general power relay or hot-swap device; signal amplitude, supply sequencing, and control timing must follow the manufacturer constraints. Short traces and careful return-path routing help preserve signal quality.
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Automated Test and Measurement
The ISL84762IU can serve as a routing element in automated test equipment that selects among DUT connections or measurement paths. Its dual SPDT configuration supports two independent selections, and the 6ns transition time is short enough for many digitally controlled measurement sequences. The compact MSOP package reduces footprint demand, while the 1.65V to 3.6V range fits modern low-voltage test electronics. Control timing must be coordinated with measurement settling, especially when the 224pF capacitance and off-state behavior affect high-impedance nodes. Use a defined ground reference, minimize loop area around sensitive routes, and validate every analog terminal voltage against the datasheet limits before automating repetitive switching operations.
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추천 제품 요약
엔지니어링 참조 데이터: ISL84762IU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Device Type | Dual SPDT analog switch |
| Package | 10-pin MSOP |
| Brand | Renesas Electronics |
| Number of Circuits | 2 circuits |
| Switch Configuration | 2:1 SPDT per circuit |
| Supply Voltage Range | 1.65 V to 3.6 V |
| Nominal On-Resistance | 600 mOhm |
| Signal Bandwidth | 120 MHz |
| Transition Time | 6 ns |
| Switching Time | 14 ns |
| Switch Capacitance | 224 pF |
| Operating Temperature Range | -40°C to +85°C |
주요 차별점
- Dual independent SPDT routing in one compact package (vs Higher-voltage single-switch alternatives)
- Low-voltage operation suited to compact mixed-signal systems (vs Higher-voltage analog switches)
- Fast signal-routing capability (vs General-purpose slow CMOS switches)
설계 노트
Account for the stated 224pF switch capacitance when the switched node has a high source impedance. The capacitor can increase rise and fall times and create longer settling intervals than the nominal 6ns transition time suggests. For precision measurements, evaluate the complete source impedance, switch capacitance, amplifier capacitance, and acquisition timing. Keep the switch and receiver physically close to minimize additional PCB capacitance.
Use the manufacturer datasheet pin diagram and package drawing to create the 10-pin MSOP footprint. Preserve pin numbering around the package and verify the origin convention before assigning control and analog signals. Route the switched nodes as short, direct traces, provide a continuous ground reference, and avoid sharing narrow return paths with unrelated high-current circuitry. Incorrect package interpretation is a common source of failures in replacement designs.
Do not treat the ISL84762IU as a power switch or hot-plug device. Its stated operating supply is 1.65V to 3.6V, and all signal-terminal voltages must remain within the manufacturer limits. Coordinate control signals with the supply state, allow analog paths to reach a valid state before sampling, and use 1.8V-compatible control only in the operating configuration described by the datasheet.
For low-frequency measurements, capacitive feedthrough through the switch may be more important than transition time. For higher-frequency paths, minimize stub lengths and discontinuities around the common and switched terminals. Maintain consistent grounding between the switch and receiving circuitry, and keep digital control routing away from sensitive analog nodes to reduce coupling from control-edge transients.
규정 준수 정보
No explicit compliance declarations were available for this part. Verify current RoHS, REACH, lead-free, halogen-free, and conflict-minerals documentation with the manufacturer before release.
