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PDF MAX14777 Data sheet ( Hoja de datos )
| Número de pieza | MAX14777 | |
| Descripción | Quad Beyond-the-Rails -15V to +35V Analog Switch | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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MAX14777
Quad Beyond-the-Rails -15V to +35V
Analog Switch
General Description
The MAX14777 quad SPST switch supports analog
signals above and below the rails with a single 3.0V to
5.5V supply. The device features a selectable -15V/+35V
or -15V/+15V analog signal range for all switches. Each
switch has a separate control input to allow independent
switching, making the device an alternative to opto-relays
in applications that do not need galvanic isolation.
The IC features 10Ω (max) on-resistance, and 9mΩ (typ)
RON flatness, along with a low 50nA (max at +85°C) on-
leakage. For maximum signal integrity, the device keeps
this performance over the entire common-mode voltage
range. Each switch can carry up to 60mA (max) of con-
tinuous current in either direction.
The MAX14777 is available in a 20-pin (4mm x 4mm)
TQFN package and is specified over the -40°C to +105°C
temperature range.
Applications
● Industrial Measurement Systems
● Instrumentation Systems
● 4–20mA Switching
● ATE Systems
Functional Diagram
VL
Benefits and Features
● Simple, Flexible Board Design
• -15V/+35V Beyond-the-Rails™ Signal Range from
a Single 3.0V to 5.5V Supply
• Selectable -15V/+15V Signal Range for Lower
Supply Current
• 60mA Maximum Current through Each Switch
• 1.62V to 5.5V Logic Interface
● High-Performance 10Ω RON (max)
● 150mΩ (max) RON Flatness
● ±50nA (max) On-Leakage at TA = +85°C
● Saves Board Space
• Small 20-Pin TQFN Package (4mm x 4mm)
● -40°C to +105°C Operating Temperature Range
Beyond-the-Rails is a registered trademark of Maxim Integrated
Products, Inc.
Ordering Information appears at end of data sheet.
VCC
SEL35
A1
A2
A3
A4
CONFIG
MAX14777
BIAS
GENERATION
VP
VN
B1
B2
B3
B4
EN1 EN2 EN3 EN4
For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX14777 related.
19-6714; Rev 1; 10/13
Free Datasheet http://www.datasheet4u.com/
1 page  
MAX14777
Quad Beyond-the-Rails -15V to +35V
Analog Switch
Test Circuits/Timing Diagrams
V
+3.3V
+5V
1µF 1µF
VL VCC
MAX14777
A_ B_
VIN GND
IIN
Figure 1. On-Resistance Measurement
+3.3V
1µF
+5V
1µF
IL_OFF
A
VL VCC
MAX14777
A_ B_
IL_OFF
A
VIN GND
Figure 2. Leakage Current Measurements
+3.3V
1µF
+5V
1µF
IL_ON
A
VL VCC
MAX14777
A_ B_
VIN GND
www.maximintegrated.com
Maxim Integrated │ 5
Free Datasheet http://www.datasheet4u.com/
5 Page 
MAX14777
Pin Configuration
Quad Beyond-the-Rails -15V to +35V
Analog Switch
TOP VIEW
15 14 13 12 11
N.C. 16
B4 17
B3 18
B2 19
B1 20
+
MAX14777
*EP
1 2345
10 SEL35
9 A4
8 A3
7 A2
6 A1
TQFN
4mm x 4mm
*EP = EXPOSED PAD. CONNECT EP TO VN.
PIN NAME
FUNCTION
Positive Charge-Pump Output. Bypass VP to GND with a 10nF, 50V capacitor for applications with an
1 VP input range of ±15V (SEL35 = low) or a 100V capacitor for applications with an input range of -15V/+35V
(SEL 35 = high). Place the capacitor as close as possible to the device.
2 GND Ground
3
VN
Negative Charge-Pump Output. Bypass VN to GND with a 50V, 10nF ceramic capacitor placed as close
as possible to the device.
4
VCC
Power-Supply Input. Bypass VCC to GND with a 1μF ceramic capacitor placed as close as possible to the
device.
5 I.C. Internally Connected. Connect to GND.
6 A1 Analog Switch 1 Terminal A. Switch 1 is open when EN1 is low.
7 A2 Analog Switch 2 Terminal A. Switch 2 is open when EN2 is low.
8 A3 Analog Switch 3 Terminal A. Switch 3 is open when EN3 is low.
9 A4 Analog Switch 4 Terminal A. Switch 4 is open when EN4 is low.
10
SEL35
Analog-Signal Range Select Input. Drive SEL35 low to enable the -15V/+15V analog signal range. Drive
SEL35 high to enable the -15V/+35V analog signal range.
11
EN1
Switch 1 Control Input. Drive EN1 high to close switch 1. Drive EN1 low to open switch 1.
www.maximintegrated.com
Maxim Integrated │ 11
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet MAX14777.PDF ] | |
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