高精度，低电压模拟开关 Precision, Low-Voltage Analog Switches
General Description
The MAX381/MAX383/MAX385 are precision, low-volt age analog switches. The single-pole single-throw MAX381 and double-pole single-throw MAX385 dual switches are normally open. The single-pole double throw MAX383 has two normally open and two normally closed poles. All three parts offer low on-resistance less than 35Ω, guaranteed to match to within 2Ω between channels and to remain flat over the specified analog signal range 4Ωmax. They also offer low leak age less than 250pA at +25°C and less than 2.5nA at +85°C and fast switching turn-on time less than 175ns and turn-off time less than 100ns.
Features
♦Single-Supply Operation +3V to +15V
Bipolar-Supply Operation ±3V to ±8V
♦Pin-Compatible with DG401/DG403/DG405
♦Low On-Resistance, 20ΩTypical 35ΩMax
♦Guaranteed Matched On-Resistance Between Channels, <2Ω
♦Guaranteed Flat On-Resistance over Specified Analog Signal Range, <4Ω
♦Guaranteed Charge Injection, <5pC
♦Guaranteed Off-Channel Leakage,<2.5nA at +85°C
♦TTL/CMOS-Logic Compatible with 3V, 5V, ±3V, and ±5V Supplies
♦Rail-to-Rail Analog Signal Handling Capability
Applications
Sample-and-Hold Circuits
Military Radios
Test Equipment
Communication Systems
Heads-Up Displays
Battery-Operated Systems
Audio Signal Routing
PBX, PABX
Guidance and Control Systems
