The MAX4591/MAX4592/MAX4593 are high-speed, precision, quad, single-pole/single-throw (SPST) analog switches designed to operate at +12V or +15V. The MAX4591 has four normally closed (NC) switches, and the MAX4592 has four normally open (NO) switches. The MAX4593 has two NO and two NC switches. All three devices offer low leakage (100pA max) and fast switching speeds (tON ≤ 80ns, tOFF ≤ 45ns). With a +12V supply, the MAX4591/MAX4592/MAX4593 offer guaranteed 1Ω max channel-to-channel matching, 20Ω max on-resistance (RON), and 1.75Ω max RON flatness over the specified range. These switches are also fully specified for single +15V operation, with 16Ω max RON, 1.5Ω max RON match, and 1.5Ω max flatness. For low-voltage or dual-supply operation, refer to the MAX391 data sheet. These low-voltage switches also offer 5pC max charge injection, and electrostatic discharge (ESD) protection is greater than 2000V, per Method 3015.7. Applications include Test Equipment, Sample-and-Hold Circuits, Disk Drives, Guidance and Control Systems, Tape Drives, Military Radios, Audio and Video Communications Systems, Switching PBX, PABX, Heads-Up Displays.
The MAX4591, MAX4592, and MAX4593 are high‑speed, precision, quad single‑pole/single‑throw (SPST) analog switches designed for operation at +12 V or +15 V. The MAX4591 provides four normally‑closed switches, the MAX4592 provides four normally‑open switches, and the MAX4593 offers two normally‑open and two normally‑closed switches. All devices feature low leakage (100 pA max) and fast switching (tON ≤ 80 ns, tOFF ≤ 45 ns).
Key specifications include on‑resistance as low as 16 Ω (max) at +15 V, on‑resistance matching within 1 Ω, flatness within 1.75 Ω, charge injection ≤ 5 pC, and ESD protection > 2000 V. The datasheet also provides pin configurations, ordering information, package options, and typical operating characteristics such as temperature‑dependent on‑resistance and leakage currents.
| Supply Voltage Range | +12 V or +15 V |
|---|---|
| On‑Resistance Matching | ≤ 1 Ω max channel‑to‑channel |
| On‑Resistance Flatness | ≤ 1.75 Ω max |
| Switching Time (tON) | ≤ 80 ns |
| Switching Time (tOFF) | ≤ 45 ns |
| Leakage Current (OFF) | ≤ 100 pA |
| ESD Protection | > 2000 V per Method 3015.7 |
| Charge Injection | ≤ 5 pC |
They are specified for single‑supply operation at either +12 V or +15 V.
The maximum on‑resistance is 20 Ω at a +12 V supply.
They provide ESD protection greater than 2000 V per Method 3015.7.
The off‑leakage current is specified as 100 pA maximum.