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Product Detailed Parameters
- Description：IC SWITCH SPDT X 1 2.9OHM 8VSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPDT
- Multiplexer/Demultiplexer Circuit：2:01
- On-State Resistance (Max)：2.9Ohm
- Channel-to-Channel Matching (ΔRon)：250mOhm
- Voltage - Supply, Single (V+)：4.5V ~ 44V
- Voltage - Supply, Dual (V±)：±4.5V ~ 22V
- Switch Time (Ton, Toff) (Max)：170ns, 180ns
- -3db Bandwidth：40MHz
- Charge Injection：-10pC
- Channel Capacitance (CS(off), CD(off))：33pF, 48pF
- Current - Leakage (IS(off)) (Max)：150pA
- Crosstalk：-106dB @ 1MHz
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：8-VSSOP
- Number of Circuits：1
- Grade：-
- Qualification：-
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Overview
The TMUX7219DGKR is a single-channel, 2:1 (SPDT) precision analog switch manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 44 V for single supplies or ±2.25 V to ±22 V for dual supplies. The device features latch-up immunity exceeding 1000 mA per JESD 78 Class II standards and supports 1.8-V logic control inputs. Key electrical parameters include a maximum on-resistance of 2.7 Ω at 5 V and 2.8 Ω at 12 V. Switching times are characterized by a maximum turn-on time of 168 ns and a maximum turn-off time of 180 ns. It functions reliably across an extended temperature range from -40°C to +125°C.
Feature Summary
- Latch-up immune design ensures robust performance against transient events exceeding 1000 mA.
- Compatible with low-voltage logic interfaces, including 1.8-V control signals.
- Precision switching characteristics with low on-resistance variations across wide supply ranges.
Applications
- High-voltage signal routing in industrial automation systems
- Data acquisition channels requiring isolation and precision
- Test and measurement equipment signal paths
Procurement Notes
Verify the specific suffix DGKR corresponds to the VSSOP-8 package and tape-and-reel shipping configuration. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure supply voltage limits align with system requirements to prevent device damage.
Selection Notes
Select this component when a single SPDT switch with high voltage tolerance and latch-up protection is required. Compare on-resistance values against load requirements to ensure signal integrity. Verify that the 1.8-V logic compatibility matches the controlling microcontroller or FPGA output levels.
Part Context
This part belongs to the TMUX7219 family of precision multiplexers designed for high-voltage applications. It shares architectural similarities with other devices in the series but differs in channel count and packaging options such as WQFN or TSSOP variants found in related models like the TMUX7236 or TMUX7211.
Replacement Considerations
Direct substitutes may include other Texas Instruments SPDT switches with similar voltage ratings and latch-up immunity, such as the TMUX7219M for different packaging needs. Verify pinout compatibility and electrical specifications before substitution.
