21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PS398/PS399
Precision 8-Ch, Diff. 4-Ch,
17V Analog Multiplexers
Features
•
Low On-Resistance (60Ω typ.) Minimizes Distortion
and Error Voltages
•
Low Glitching Reduces Step Errors and Improves
Settling Times. Charge Injection: <5pC
•
Split-Supply Operation (+3V to +8V)
•
Improved Second Sources for MAX398/MAX399
•
On-Resistance Matching Between Channels: <6Ω
•
On-Resistance Flatness: <11Ω
•
Low Off-Channel Leakage,
I
NO(OFF)
< 1nA @ +85
o
C, I
COM(ON)
, <2.5nA @ +85
o
C
•
TTL/CMOS Logic Compatible
•
Fast Switching Speed, t
TRANS
<250ns
•
Break-Before-Make action eliminates momentary crosstalk
•
Rail-to-Rail Analog Signal Range
•
Low Power Consumption, <300µW
•
Narrow SOIC and QSOP Packages Minimize Board Area
Description
The PS398/PS399 are improved high precision analog multiplex-
ers. The PS398, an 8-channel single-ended mux, selects one of
eight inputs to a common output as determined by a 3-bit address
A0-A2. An EN (enable) pin when low disables all switches, use-
ful when stacking several devices. The PS399 is a 4-channel
differential multiplexer. It selects one of four differential inputs to
a common differential output as determined by a 2-bit address A0,
A1. An EN pin may be driven low to disable all switches.
These multiplexers operate with dual supplies from +3V to +8V.
Single-supply operation is possible from +3V to +15V.
With +5V power supplies, the PS398/PS399 guarantee <100Ω
on-resistance. On-resistance matching between channels is within
6Ω. On-resistance flatness is less than 11Ω over the specified
signal range.
Each switch conducts current equally well in either direction when
on. In the off state each switch blocks voltages up to the power-
supply rails.
Both devices guarantee low leakage currents (<2.5nA at +85
o
C)
and fast switching speeds (t
TRANS
<250ns). Break-before-make
switching action protects against momentary crosstalk between
channels.
Applications
•
•
•
•
•
•
Data Acquisition Systems
Audio Switching and Routing
Test Equipment
PBX, PABX
Telecommunication Systems
Battery-Powered Systems
Functional Block Diagrams and Pin Configurations
Top View
PS398
A0
EN
V-
NO1
NO2
1
2
3
4
5
Decoders/Drivers
Top View
PS399
16
A1
AO
EN
V-
1
2
3
Decoders/Drivers
16
A1
15
A2
14
GND
13
V+
12
NO5
11
NO6
10
NO7
9
NO8
15
GND
14
V+
13
NO1B
12
NO2B
11
NO3B
10
NO4B
9
COMB
NO1A
4
NO2A
5
NO3A
6
NO4A
7
COMA
8
NO3
6
NO4
7
COM
8
1
PS8185C
10/06/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PS398/PS399
Precision 8-Ch, Diff. 4-Ch, 17V Analog Multiplexers
Truth Tables
PS398
A2
X
0
0
0
0
1
1
1
1
A1
X
0
0
1
1
0
0
1
1
A0
X
0
1
0
1
0
1
0
1
EN
0
1
1
1
1
1
1
1
1
On Switch
None
1
2
3
4
5
6
7
8
PS399
A1
X
0
0
1
1
A0
X
0
1
0
1
EN
0
1
1
1
1
ON Switch
None
1
2
3
4
Logic 0, V
AL
≤
0.8V
Logic 1, V
AH
≥
2.4V
Ordering Information
Part
Number
PS398CPE
PS398CSE
PS398EPE
PS398ESE
PS398EEE
Temperature
Range
0
o
C to +70
o
C
0
o
C to +70
o
C
-40
o
C to +85
o
C
-40
o
C to +85
o
C
-40
o
C to +85
o
C
Package
16 Plastic DIP
16 Narrow SO
16 Plastic DIP
16 Narrow SO
16 QSOP
Part
Number
PS399CPE
PS399CSE
PS399EPE
PS399ESE
PS399EEE
Temperature
Package
Range
0
o
C to +70
o
C
16 Plastic DIP
o
o
0 C to +70 C
16 Narrow SO
o
o
-40 C to +85 C
16 Plastic DIP
o
o
-40 C to +85 C
16 Narrow SO
o
o
-40 C to +85 C
16 QSOP
Absolute Maximum Ratings
Voltages Referenced to V-
V+ .................................................................... -0.3V to + 17V
GND ...........................................................................................
-0.3V to + 17V
GND ...........................................................................................
-0.3V to ( V+) + 0.3V
V
IN
, V
COM
, V
NO
(Note 1) ............ (V-) -2V to (V+) + 2V
curs first
Peak Current, COM, NO, NC
(pulsed at 1ms, 10% duty cycle) ....................................100mA
ESD per method 3015.7 .............................................. > 2000V
or 30mA, whichever oc-
Thermal Information
Continuous Power Dissipation
Plastic DIP (derate 10.5mW/ °C above +70°C) ............. 800mW
Narrow SO and QSOP(derate 8.7mW/ °C above +70°C)650mW
Storage Temperature ...................................... 65°C to +150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Note 1:
Signals on NO, COM, or logic inputs exceeding V+ or V- are
clamped by internal diodes. Limit forward diode current to 30mA.
Current (any terminal ) ........................................................ 30mA
Caution:
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress only rating
and operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied.
2
PS8185C
10/06/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PS398/PS399
Precision 8-Ch, Diff. 4-Ch, 17V Analog Multiplexers
Electrical Specifications - Dual Supplies
(V± = ±5V ± 10%, GND = 0V, V
AH
= V
ENH
= 2.4V, V
AL
= V
ENL
= 0.8V)
Parame te r
Analog Switch
Analog Signal Range
(3)
V
ANALOG
On Resistance
R
ON
V+ = 4.5V, V- = - 4.5V,
V
COM
= ±3.5V
I
NO
= 1mA,
V
COM
or V
NC
= ±3.5V,
I
NO
= 1mA,
V+ = 5V, V- = - 5V
Full
25
Full
25
Full
25
Full
25
Full
PS398
25
Full
25
Full
25
Full
PS399
25
Full
Logic Input
Logic High Input
Voltage
Logic Low Input
Voltage
Input Current with Input
Voltage High
Input Current with Input
Voltage Low
V
AH,
V
ENH
V
AL
,
V
ENL
Full
I
AH
, I
ENH
I
AL,
I
ENL
V
A
= V
EN
= 2.4V
V
A
= V
EN
= 0.8V
- 0.1
- 0.1
0.1
µA
0.1
2.4
V
0.8
- 0.1
- 1.0
- 0.2
- 2.5
- 0.1
- 1.5
- 0.4
-5
- 0.2
- 2.5
V-
60
V+
100
125
6
8
11
14
0.1
1.0
50
100
50
100
0.4
5
0.2
2.5
nA
Ω
V
Symbol
Conditions
Te mp. (°C)
M in.
(2)
Typ.
(1)
M ax.
(2)
Units
On- Resistance Match
Between Channels
(4)
∆R
ON
On- Resistance
Flatness
(5)
NO Off Leakage
Current
(6)
R
FLAT(ON)
V+ = 5V, V- = - 5V,
I
NO
= 1mA, V
COM
= ±3V, 0V
V+ = 5.5V, V- = - 5.5V,
V
COM
= ±4.5V,
V
NO
= ±4.5V
V+ = 5.5V, V- = - 5.5V
V
COM
= ± 4.5V,
V
NO
= - /+4.5V
I
NO(OFF)
COM- Off Leakage
Current
(6)
I
COM(OFF)
PS399
COM On Leakage
Current
(7)
I
COM(ON)
V+ = 5.5V, V- = - 5.5V
V
COM
= ±4.5V
V
NO
= 4.5V
PS398
3
PS8185C
10/06/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PS398/PS399
Precision 8-Ch, Diff. 4-Ch, 17V Analog Multiplexers
(continued)
Parame te r
Electrical Specifications - Dual Supplies
(V± = ±5V ± 10%, GND = 0V, V
AH
= V
ENH
= 2.4V, V
AL
= V
ENL
= 0.8V)
Symbol
Conditions
Te mp
(°C)
M in.
(1)
Typ.
(2)
M ax.
(1)
Units
Dynamic
Transition Time
Break- Before- Make
Time Delay
Enable Turn- OnTime
t
TRANS
t
OPEN
t
ON(EN)
t
OFF(EN)
Q
OIRR
X
TALK
C
IN
C
NO(OFF)
C
COM(OFF)
Figure 1
Figure 3
Figure 2
25
Full
25
Full
2.8
- 101
- 92
2.5
25
3.6
31
14
35
20
pF
55
0
40
72
150
250
150
200
5
pC
dB
ns
150
Enable Turn- Off Time
Charge Injection
(3)
Off Isolation
(7)
Crosstalk
Logic Input Capacitance
NO Off Capacitance
COM Off Capacitance
Figure 2
C
L
= 1nF, V
S
= 0V, R
S
= 0
Ω,
V
EN
= 0V, R
L
= 1k
Ω
, f = 100kHz
R
L
= 1k
Ω
, f = 100kHz, Figure 6
f =1MHz
f =1MHz, V
EN
= V
NO
= 0V
f =1MHz,
V
EN
= V
COM
=0V
f =1MHz, V
COM
= 0V
PS398
PS399
PS398
PS399
COM On Capacitance
Supply
Power- Supply Range
Positive Supply Current
NegativeSupply Current
Ground Current
C
COM(ON)
±3
I+
I-
I
GND
V
EN
= V
A
= 0V or V+,
V+ =5.5V, V- = - 5.5V
Full
-1
-1
-1
±8
1
1
1
V
µA
Notes:
1. Algebraic convention, where the most negative value is a minimum and the most positive is a maximum, is used in this data sheet.
2. Typical values are for DESIGN AID ONLY, not guaranteed or subject to production testing.
3. Guaranteed by design.
4.
∆R
ON
= R
ON
max - R
ON
min.
5. Flatness is defined as the difference between the maximum and minimum values of on-resistance measured.
6. Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at +25ºC.
7. Off Isolation = 20log
10
V
COM
/ V
NO
. See Figure 5.
4
PS8185C
10/06/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PS398/PS399
Precision 8-Ch, Diff. 4-Ch, 17V Analog Multiplexers
Electrical Characteristics - Single 5V Supply
Parame te r
Switch
Analog Signal Range
(3)
On Resistance
V
COM,
V
NO
R
ON
Symbol
(V+ = + 5V ± 10%, V- = 0V, GND = 0V, V
AH
= V
ENH
= +2.4, V
AL
= V
ENL
= +0.8V)
Conditions
Te mp
(°C)
M in.
(1)
Typ.
(2)
M ax.
(1)
Units
Full
I
NO
= 1mA, V
COM
= 3.5V,
V+ = 4.5V
I
NO
= 1mA, V
COM
= 3.5V,
V+ = 4.5V
I
NO
= 1mA, V
COM
= 1.5V, 2.5V,
3.5V, V+ = 5V
V
NO
= 4.5V, V
COM
= 0V,
V+ = 5.5V
PS398
25
Full
25
Full
25
Full
25
Full
25
Full
25
Full
25
Full
25
Full
0
100
V+
225
280
11
13
18
22
V
R
ON
Matching Between
Channels
(4)
On - Resistance Flatness
NO- Off Leakage
Current
(8)
∆R
ON
R
FLAT
I
NO(OFF)
Ω
- 0.1
- 1.0
- 0.2
- 2.5
- 0.2
- 1.5
- 0.4
-5
- 0.2
- 2.5
0.1
1.0
50
100
50
100
0.4
5
0.2
2.5
nΑ
COM- Off Leakage
Current
(8)
I
COM(OFF)
V
COM
= 4.5V, V
NO
=0V,
V+ = 5.5V
PS399
COM- On Leakage
Current
(8)
I
COM(ON)
V
COM
= 4.5V, V
NO
=4.5V,
V+ = 5.5V
PS398
PS399
Digital Logic Input
Logic High Input Voltage
Logic Low Input Voltage
Input Current with Input
Voltage High
Input Current with Input
Voltage Low
Supply
Power- Supply Range
Positive- Supply Current
Negative- Supply Current
Ground Current
V+
I+
I-
I
GND
V
EN
= V+ or 0V, V
A
= 0V,
V+ = 5.5V, V- = 0V
Full
3
- 1.0
- 1.0
- 1.0
15
1.0
1.0
1.0
V
µΑ
V
AH
, V
ENH
V
AH
, V
ENL
I
AH
, I
ENH
I
AH
, I
ENL
V
A
= V
EN
= 2.4V
V
A
= V
EN
= 0.8V
Full
- 0.1
- 0.1
2.4
0.8
0.1
µA
0.1
V
5
PS8185C
10/06/99
DigiKey得捷技术专区
