TS5A3159DBVR - 1.1Ohm SPDT Analog Switch SOT-23-6 | Texas Instruments
MPN: TS5A3159DBVR ✓ Hoạt độngTS5A3159DBVR Tóm tắt
An analog switch is a semiconductor device that selectively connects or disconnects an analog signal path under digital control, acting as a voltage-controlled relay. Analog switches are fundamental building blocks for signal routing, multiplexing, and sample-and-hold circuits within the broader signal conditioning and interface IC family.
Key features include a wide 1.65 V to 5.5 V supply range supporting 1.8 V, 2.5 V, 3.3 V, and 5 V rails; fast switching times of approximately 70 ns (tON) and 40 ns (tOFF); and excellent total harmonic distortion (THD) performance. The select (IN) pin tolerates voltages up to 7 V, allowing voltages above VCC without damage. The device is also a drop-in replacement for the onsemi NC7SB3157, easing second-sourcing.
The TS5A3159 uses a CMOS transmission gate architecture providing bidirectional signal flow and low leakage. ON-resistance is flat across the signal range, minimizing signal distortion in precision audio and sensor paths. Operation is specified from -40C to +85C for industrial and consumer environments.
Typical applications include audio signal routing, portable battery-powered equipment, data acquisition multiplexing, and sensor front-end switching, where low ON-resistance preserves signal fidelity.
When designing with this device, keep the IN pin below 7 V, decouple VCC with a 100 nF ceramic capacitor close to the pin, and account for ON-resistance variation over supply voltage and temperature when calculating insertion loss.
Bộ thay thế dễ dàng lắp đặt cho TS5A3159DBVR — 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 TS5A3159DBVR (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, THD.
TS5A3159QDBVRQ1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TS5A3159A
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
SN74LVC1G3157
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
TS5A63157
⚡ Đồng góiLiên hệ để biết giá
Xem tài liệu →NC7SB3157P6X
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
74LVC1G3157
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
TS5A3159DBVR Tỷ lệ tối đa & tính chất điện
| Chức năng | SPDT (2:1) analog switch |
| Kênh | 1 |
| ON-State Resistance (Ron) | 1.1 ohm typical, 2.5 ohm maximum |
| Supply Voltage Range | 1.65 V to 5.5 V |
| Turn-On Time (tON) | 70 ns |
| Turn-Off Time (tOFF) | 40 ns |
| Switching Scheme | Break-before-make |
| Control Input Tolerance | Up to 7 V on IN pin |
| Isolation (Power-Down Mode) | 64 dB |
| Ron Matching | Excellent (per TI datasheet) |
| THD | Excellent total harmonic distortion (per TI datasheet) |
| Input/Output Type | Transmission gate (bidirectional) |
| Nhiệt độ hoạt động | -40C to +85C |
| Hộp | SOT-23-6 (DBV) |
| Kiểu lắp đặt | Surface Mount |
| Marking Code | JA8K / JA8R |
| Trạng thái RoHS | Compliant |
Cấu hình chân TS5A3159DBVR
| Chân 1 | IN — Select control input, tolerant up to 7 V |
| Chân 2 | GND — Ground |
| Chân 3 | NO — Normally open drain/source terminal (closed when IN is low) |
| Chân 4 | COM — Common drain/source terminal |
| Chân 5 | NC — Normally closed drain/source terminal (closed when IN is high) |
| Chân 6 | V+ — Power supply, 1.65 V to 5.5 V |
Ứng dụng tiêu biểu
TS5A3159DBVR phù hợp cho 6 Áp dụngs: Audio Signal Routing, Portable Battery-Powered Equipment, Data Acquisition Multiplexing, Sensor Front-End Switching, Automotive Signal Muxing, Industrial Control Signal Switching.
Audio Signal Routing
The TS5A3159DBVR suits audio path switching because its 1.1 ohm typical ON-resistance preserves signal amplitude, while the transmission-gate architecture delivers excellent THD for low-distortion pass-through. Break-before-make switching prevents audible clicks and pops when rerouting headphone, line-level, or microphone signals between sources. Placed between an audio codec output and speaker/headphone amplifiers with 100 nF VCC decoupling, it adds no switching noise; the main trade-off is a small Ron-induced insertion loss proportional to load impedance.
Được đề xuất
Portable Battery-Powered Equipment
The 1.65 V minimum supply allows operation directly from single alkaline/NiMH cells or depleted Li-ion rails, while the 6-pin SOT-23-6 package minimizes PCB area in wearables and handheld instruments. The 7 V tolerant select pin protects against logic overshoot from chargers or accessory interfaces regardless of VCC state. In battery products the switch routes sensors, memory, or audio between active and sleep domains; the key consideration is accounting for Ron variation at low supply when calculating signal insertion loss.
Được đề xuất
Data Acquisition Multiplexing
In data acquisition front ends, the TS5A3159 routes multiple sensor or voltage channels into a single ADC input. Its 1.1 ohm Ron (2.5 ohm max) keeps channel-to-channel gain error low, and 70 ns tON / 40 ns tOFF timing supports fast scan sequences for multiplexed sampling. Break-before-make action prevents two sources from being briefly shorted during channel changes, protecting low-impedance sensor outputs. Pair the switch with a settling-time budget that includes the RC formed by Ron and the ADC input capacitance.
Được đề xuất
Sensor Front-End Switching
Sensor interfaces benefit from the TS5A3159 bidirectional transmission gate, which passes small differential or single-ended signals without directional restrictions. Excellent Ron matching across channels keeps bridge and ratiometric sensor readings consistent, while low leakage minimizes offset error in high-impedance paths such as pH or photodiode front ends. The device switches temperature, pressure, or current-sense outputs into conditioning amplifiers; with high-impedance sources, use buffer amplifiers after the switch to avoid Ron-related gain errors.
Được đề xuất
Automotive Signal Muxing
For automotive designs, the pin-compatible TS5A3159QDBVRQ1 provides AEC-Q100 qualification in the identical SOT-23-6 footprint, enabling one PCB layout for both consumer and automotive variants. Applications include switching diagnostic test points, multiplexing sensor signals to a single MCU ADC channel, and routing CAN/LIN auxiliary signals. The wide 1.65 V to 5.5 V supply range covers 5 V and 3.3 V automotive logic domains; verify load currents stay within Ron power dissipation limits for the elevated underhood ambient temperatures.
Được đề xuất
Industrial Control Signal Switching
Industrial PLC and control boards use the TS5A3159 to select between redundant sensor inputs, switch calibration references, or gate analog setpoints. Specified from -40C to +85C, the device meets industrial ambient requirements, and the 64 dB power-down isolation lets disabled channels float safely. Its 2.5 ohm maximum Ron introduces only millivolt-level errors into 4-20 mA derived voltage signals read by high-impedance ADCs. Keep trace resistance below Ron to preserve matching accuracy across channels.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TS5A3159DBVR — 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 | TS5A3159QDBVRQ1 | TS5A3159A | NC7SB3157P6X | 74LVC1G3157 |
|---|---|---|---|---|---|
| Package | SOT-23-6 (DBV) | SOT-23-6 (DBV) - same | SOT-23-6 (DBV) - same | SOT-23-6 - same | SOT-23-6 - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | onsemi | NXP Semiconductors |
| Configuration | SPDT (2:1), 1 channel | SPDT (2:1), 1 channel | SPDT (2:1), 1 channel | SPDT (2:1), 1 channel | SPDT (2:1), 1 channel |
| Supply Voltage Range | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V | 1.65 V to 5.5 V |
| Automotive Grade | No | Yes (AEC-Q100) | No | No | No |
Bảo phân biệt quan trọng
- Documented drop-in replacement path (vsNC7SB3157P6X)
- Break-before-make switching (vs74LVC1G3157)
- 7 V tolerant select pin (vsTS5A3159A)
Ghi chú thiết kế
Decouple V+ (pin 6) with a 100 nF ceramic capacitor placed within 2 mm of the pin, with a solid ground connection via pin 2. Keep the analog signal traces (NO, NC, COM) short and away from fast digital lines to avoid capacitive coupling into the high-impedance off-state channel. The SOT-23-6 land pattern should follow TI's DBV package footprint in the datasheet mechanical section.
Respect the 7 V absolute maximum on the IN select pin and the VCC-dependent signal range - analog signals on NO/NC/COM must not exceed V+ or go below GND, or internal ESD structures conduct and can damage the device. Note the pinout polarity: NO closes when IN is low, NC closes when IN is high; confusing these is the most common integration error, especially when substituting active-low variants such as TS5A63157.
Ron of 1.1 ohm typical varies over supply voltage and temperature. In precision paths, compute insertion loss as Ron / (Ron + Rload); at a 600 ohm audio load this is about 0.18% - negligible - but with a 50 ohm RF-style load the error and its temperature drift become measurable. In muxed ADC front ends, include the Ron x Csample time constant in the acquisition settling budget, or buffer the COM terminal with an op-amp.
Thông tin tuân thủ
RoHS compliant per TI product page. For AEC-Q100 qualified variant use TS5A3159QDBVRQ1. REACH and halogen-free status not stated in provided data.
