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MAX317, MAX318, MAX319
Precision, SPST, CMOS Analog Switches
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Status
Active: In Production.
Description
The MAX317/MAX318/MAX319 are precision, CMOS, monolithic analog switches. The single-pole single-throw (SPST) MAX317 is normally closed (NC), the SPST MAX318 is normally open (NO), and the single-pole double-throw (SPDT) MAX319 has one normally open and one normally closed switch. All three parts offer low on resistance (less than 35Ω), guaranteed to match within 2Ω between channels and to remain flat over the analog signal range (Δ3Ω max). They also offer low leakage (less than 250pA at +25°C and less than 6nA at +85°C) and fast switching (turn-on time less than 175ns and turn-off time less than 145ns).
The MAX317/MAX318/MAX319 are fabricated with Maxim's new improved silicon-gate process. Design improvements guarantee extremely low charge injection (10pC), low power consumption (35µW), and electrostatic discharge (ESD) greater than ±2000V. The 44V maximum breakdown voltage allows rail-to-rail analog signal handling capability.
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Data Sheet
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Key Features
- Low On Resistance < 20Ω Typical (35Ω Max)
- Guaranteed Matched On Resistance Between Channels < 2Ω
- Guaranteed Flat On Resistance over Analog Signal Range Δ3Ω Max
- Guaranteed Charge Injection < 10pC
- Guaranteed Off-Channel Leakage < 6nA at +85°C
- ESD Guaranteed > 2000V per Method 3015.7
- Single-Supply Operation (+10V to +30V)
- Bipolar-Supply Operation (±4.5V to ±20V)
- TTL-/CMOS-Logic Compatible
- Rail-to-Rail Analog Signal Handling Capability
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Applications/Uses
- Battery-Powered Applications
- Communication Systems
- Guidance and Control Systems
- Heads-Up Displays
- Military Radios
- PBX, PABX
- Sample-and-Hold Circuits
- Test Equipment
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Key Specifications:
| Switches and Multiplexers (Mid Voltage) |
| Part Number |
Functions |
Config. |
Channels |
Normal Position |
VSUPPLY (Single)
(V) |
VSUPPLY (Single)
(V) |
VSUPPLY (Dual)
(±V) |
VSUPPLY (Dual)
(±V) |
RON
(Ω) |
IL(OFF)
(nA) |
tON
(ns) |
tOFF
(ns) |
QINJECTION
(pC) |
CON
(pF) |
COFF
(pF) |
Budgetary Price |
| min |
max |
min |
max |
max |
max |
min |
max |
max |
max |
See Notes |
| MAX317 |
Switch |
SPST |
1 |
Closed |
10 |
30 |
4.5 |
20 |
45 |
0.25 |
175 |
145 |
10 |
30 |
8 |
$1.42 @1k |
| MAX318 |
SPST |
Open |
45 |
30 |
$1.42 @1k |
| MAX319 |
SPDT |
- |
35 |
35 |
$1.90 @1k |
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See All Switches and Multiplexers (Mid Voltage) (302)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Pin Configuration
Notes and Comments
Improved DG417, low RON match and flatness (MAX317)
Improved DG418, low RON match and flatness (MAX318)
Improved DG419, low RON match and flatness (MAX319)
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Information Index
Document Ref.: 19-0185
Rev 1;
1994-11-01
This page last modified: 2009-11-10
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