19-4120; Rev 1; 2/11
Low-Charge-Injection, 8-Channel, High-Voltage
Analog Switches with 20MHz Serial Interface
General Description
The MAX4800A/MAX4802A provide high-voltage switch-
ing on eight channels for ultrasonic imaging and printer
applications. The devices utilize BCDMOS process
technology to provide eight high-voltage low-charge-
injection SPST switches, controlled by a 20MHz serial
interface. Data is clocked into an internal 8-bit shift reg-
ister and retained by a programmable latch with enable
and clear inputs. A power-on reset function ensures that
all switches are open on power-up.
The devices operate with a wide range of high-voltage
supplies including: V
PP
/V
NN
= +100V/-100V, +185V/-15V,
and +40V/-160V. The digital interface operates from a
separate V
DD
supply from +2.7V to +6V. Digital inputs
DIN, CLK,
LE,
and CLR are +6V tolerant, independent
of the V
DD
supply voltage. The MAX4802A provides
integrated 35kΩ bleed resistors on each switch terminal
to discharge capacitive loads.
The devices are drop-in replacements for the Supertex
HV2203 and HV2303. They are available in the 48-pin
LQFP, 26-bump CSBGA, and 28-pin PLCC packages.
All devices are specified for the commercial 0°C to
+70°C temperature range.
♦
Fast SPI™ Interface 20MHz
♦
Pin-Compatible Replacement for Supertex HV2203
(MAX4800A)
♦
Pin-Compatible Replacement for Supertex HV2303
(MAX4802A)
♦
Flexible High-Voltage Supplies Up to V
PP
- V
NN
= 200V
Ω
♦
Low-Charge-Injection, Low-Capacitance 22Ω
Switches
♦
DC to 50MHz Analog-Signal Frequency Range
♦
-77dB Off-Isolation at 5MHz
♦
Low 10µA Quiescent Current
♦
Integrated Bleed Resistors (MAX4802A Only)
♦
Available in Standard PLCC, LQFP, and CSBGA
Packages
Features
MAX4800A/MAX4802A
Pin/Bump Configurations
TOP VIEW
N.C.
N.C.
V
DD
DIN
N.C.
CLR
LE
CLK
GND
N.C. (RGND)
N.C.
V
NN
Applications
Ultrasound Imaging
Printers
DOUT
37
38
39
40
41
42
43
44
45
46
47
48
36 35 34 33 32 31 30 29 28 27 26 25
24
23
22
21
20
19
18
17
16
15
14
13
V
PP
N.C.
NO0
N.C.
COM0
N.C.
NO1
N.C.
COM1
N.C.
NO2
N.C.
Ordering Information/
Selector Guide
PART
MAX4800ACXZ+*
MAX4800ACQI+
MAX4800ACCM+*
MAX4802ACXZ+*
MAX4802ACQI+
MAX4802ACCM+*
BLEED
RESISTORS
No
No
No
Yes
Yes
Yes
SECOND
SOURCE
—
HV2203PJ-G
—
HV2303PJ-G
PIN-
PACKAGE
26 CSBGA
28 PLCC
26 CSBGA
28 PLCC
N.C.
COM7
N.C.
NO7
N.C.
COM6
N.C.
NO6
N.C.
NO5
N.C.
MAX4800A
MAX4802A
HV2203FG-G 48 LQFP
+
1
2
3
4
5
6
7
8
9 10 11 12
HV2303FG-G 48 LQFP
COM5
N.C.
COM4
N.C.
NO4
N.C.
N.C.
COM3
N.C.
NO3
N.C.
Note:
All devices are specified over the commercial 0°C to +70°C
temperature range.
*Future
product—contact factory for availability.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
SPI is a trademark of Motorola, Inc.
LQFP
(7mm x 7mm)
() MAX4802A ONLY
Pin/Bump Configurations continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
COM2
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Low-Charge-Injection, 8-Channel, High-Voltage
Analog Switches with 20MHz Serial Interface
MAX4800A/MAX4802A
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
V
DD
Logic Supply Voltage........................................-0.3V to +7V
V
PP
- V
NN
Supply Voltage ....................................................220V
V
PP
Positive Supply Voltage......................-0.3V to (V
NN
+ 220V)
V
NN
Negative Supply Voltage ..............................+0.3V to -220V
Logic Inputs
LE,
CLR, CLK, DIN ..............................-0.3V to +7V
DOUT..........................................................-0.3V to (V
DD
+ 0.3V)
RGND (MAX4802A)...............................................-4.5V to +0.3V
COM_, NO_.................................................................V
NN
to V
PP
Continuous Power Dissipation (T
A
= +70°C)
26-Bump CSBGA (derate 11.8mW/°C above +70°C)..941mW
28-Pin PLCC (derate 10.5mW/°C above +70°C) .........842mW
48-Pin LQFP (derate 22.7mW/°C above +70°C)........1818mW
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (excluding CSBGA, soldering, 10s) ..+300°C
Soldering Temperature (reflow)
28 PLCC.......................................................................+245°C
All other packages .......................................................+260°C
PACKAGE THERMAL CHARACTERISTICS (Note 1)
26 CSBGA
Junction-to-Ambient Thermal Resistance (
θ
J
A
)...........85°C/W
Junction-to-Case Thermal Resistance (
θ
J
C
)................23°C/W
28 PLCC
Junction-to-Ambient Thermal Resistance (
θ
J
A
)...........44°C/W
Junction-to-Case Thermal Resistance (
θ
J
C
)................10°C/W
48 LQFP
Junction-to-Ambient Thermal Resistance (
θ
J
A
)...........44°C/W
Junction-to-Case Thermal Resistance (
θ
J
C
)................10°C/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +6V, V
PP
= +40V to (V
NN
+ 200V), V
NN
= -40V to -160V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Analog-Signal Range
V
COM_
,
V
NO_
(Note 3)
T
A
= 0°C
I
COM
= 5mA
V
PP
= +40V,
V
NN
= -160V,
V
COM_
= 0V
Small-Signal Switch
On-Resistance
R
ONS
I
COM
= 5mA
V
PP
= +100V,
V
NN
= -100V,
V
COM_
= 0V
T
A
= +25°C
T
A
= +70°C
I
COM
=
200mA
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
I
COM
=
200mA
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
18
22
22
26
V
NN
+
10
V
PP
-
10
30
38
48
25
27
32
25
27
30
18
24
27
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Low-Charge-Injection, 8-Channel, High-Voltage
Analog Switches with 20MHz Serial Interface
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +6V, V
PP
= +40V to (V
NN
+ 200V), V
NN
= -40V to -160V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
T
A
= 0°C
I
COM
= 5mA
Small-Signal Switch
On-Resistance
R
ONS
V
PP
= +160V,
V
NN
= -40V
I
COM
=
200mA
Small-Signal Switch
On-Resistance Matching
Large-Signal Switch
On-Resistance
Shunt Resistance
(MAX4802A only)
Switch-Off Leakage
Switch-Off DC Offset
Switch-On DC Offset
Switch-Output Peak Current
(Note 4)
Switch-Output Isolation Diode
Current
SWITCH DYNAMIC CHARACTERISITICS
Off-Isolation (Note 4)
Crosstalk
COM_, NO_
Off-Capacitance
COM_ On-Capacitance
Output Voltage Spike
Charge Injection
(MAX4802A only)
LOGIC LEVELS
Logic-Input Low Voltage
Logic-Input High Voltage
V
IL
V
IH
V
DD
-
0.75
0.75
V
V
V
ISO
V
CT
f = 5MHz, R
L
= 1k , C
L
= 15pF
f = 5MHz, R
L
= 50
f = 5MHz, R
L
= 50
(Note 4)
-30
-58
-60
4
20
-150
820
600
350
pC
-33
-77
-80
11
36
18
56
+150
dB
dB
pF
pF
mV
R
ONS
R
ONL
R
INT
V
PP
= +100V, V
NN
= -100V,
V
COM_
= 0V, I
COM
= 5mA
V
COM_
= V
PP
- 10V, I
COM
= 1A
NO_ or COM_ to RGND, switch off
30
T
A
= +25°C
T
A
= +70°C
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
5
15
35
0
50
2
10
0
0
T
A
= 0°C
I
COM_
duty cycle
0.1%
T
A
= +25°C
T
A
= +70°C
300ns pulse width, 2% duty cycle (Note 4)
3
2
2
300
mA
3
A
10
10
k
μA
mV
mV
16
20
MIN
TYP
MAX
23
25
30
22
25
27
20
%
UNITS
MAX4800A/MAX4802A
I
COM_(OFF),
V
COM_
, V
NO_
= V
PP
- 10V or unconnected;
I
NO_(OFF)
(MAX4800A only)
R
L
= 100k (MAX4800A),
no load (MAX4802A)
R
L
=100k (MAX4800A),
no load (MAX4802A)
C
COM_(OFF),
V
COM_
= 0V, V
NO_
= 0V, f = 1MHz (Note 4)
C
NO_ (OFF)
C
COM_
(ON)
V
COM_
= 0V, f = 1MHz (Note 4)
R
L
= 50
(Note 4)
V
SPK
Q
V
PP
= +40V, V
NN
= -160V, V
COM_
= 0V
V
PP
= +100V, V
NN
= -100V, V
COM_
= 0V
V
PP
= +160V, V
NN
= -40V, V
COM_
= 0V
_______________________________________________________________________________________
3
Low-Charge-Injection, 8-Channel, High-Voltage
Analog Switches with 20MHz Serial Interface
MAX4800A/MAX4802A
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +6V, V
PP
= +40V to (V
NN
+ 200V), V
NN
= -40V to -160V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
Logic Input Capacitance
Logic Input Leakage
DOUT Low Voltage
DOUT High Voltage
POWER SUPPLIES
V
DD
Supply Voltage
V
PP
Supply Voltage
V
NN
Supply Voltage
V
DD
Supply Quiescent Current
V
DD
Supply Dynamic Current
V
PP
Supply Quiescent Current
V
DD
V
PP
V
NN
I
DDQ
I
DD
I
PPQ
V
IL
= 0V, V
IH
= V
PSD
, f
CLK
= 0Hz
V
DD
= +5V, V
IL
= 0V, V
IH
= +5V,
f
CLK
= 5MHz
All switches remain on or off,
I
COM_(ON)
= 5mA
V
PP
= +40V,
V
NN
= -160V
50kHz
output
switching
frequency
with no load
V
PP
= +100V,
V
NN
= -100V
V
PP
= +160V,
V
NN
= -40V
V
NN
Supply Quiescent Current
I
NNQ
All switches remain on or off,
I
COM_(ON)
= 5mA
V
PP
= +40V,
V
NN
= -160V
50kHz
output
switching
frequency
with no load
V
PP
= +100V,
V
NN
= -100V
V
PP
= +160V,
V
NN
= -40V
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
T
A
= 0°C
T
A
= +25°C
T
A
= +70°C
10
10
2.7
40
-160
6.0
V
NN
+
200
-15
3
2
50
6.5
6.5
6.5
4.0
4.0
4.0
4.0
4.0
4.0
50
6.5
6.5
6.5
4.0
4.0
4.0
4.0
4.0
4.0
mA
μA
mA
V
V
V
μA
mA
μA
SYMBOL
C
IN
I
IN
V
OL
V
OH
I
SINK
= 1mA
I
SOURCE
= 0.75mA
V
DD
-
0.5
(Note 4)
-1
CONDITIONS
MIN
TYP
MAX
10
+1
0.4
UNITS
pF
μA
V
V
V
PP
Supply Dynamic Current
I
PP
V
NN
Supply Dynamic Current
I
NN
4
_______________________________________________________________________________________
Low-Charge-Injection, 8-Channel, High-Voltage
Analog Switches with 20MHz Serial Interface
MAX4800A/MAX4802A
TIMING CHARACTERISTICS
(V
DD
= +2.7V to +6V, V
PP
= +40V to (V
NN
+ 200V), V
NN
= -40V to -160V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values
are at T
A
= +25°C.) (Note 2)
PARAMETER
ANALOG SWITCH
Turn-On Time
Turn-Off Time
Output Switching Frequency
Maximum V
COM_
, V
NO_
Slew
Rate
LOGIC TIMING
(Figure 1)
CLK Frequency
DIN to CLK Setup Time
DIN to CLK Hold Time
CLK to
LE
Setup Time
LE
Low Pulse Width
CLR High Pulse Width
CLK Rise and Fall Times (Note 4)
CLK to DOUT Delay
f
CLK
t
DS
t
DH
t
CS
t
WL
t
WC
t
R
, t
F
t
DO
Daisy chaining
V
DD
= +5V ±10%
V
DD
= +3V ±10%
V
DD
= +5V ±10%
V
DD
= +3V ±10%
V
DD
= +5V ±10%
V
DD
= +3V ±10%
V
DD
= +5V ±10%
V
DD
= +3V ±10%
V
DD
= +5V ±10%
V
DD
= +3V ±10%
V
DD
= +5V ±10%
V
DD
= +3V ±10%
V
DD
= +5V ±10%, C
L
≤
20pF
V
DD
= +3V ±10%, C
L
≤
20pF
6
12
3
3
36
65
14
22
20
40
50
50
42
80
V
DD
= +5V ±10%
V
DD
= +3V ±10%
20
10
10
16
MHz
ns
ns
ns
ns
ns
ns
ns
t
ON
t
OFF
f
SW
dV/dt
V
NO_
= V
PP
- 10V, R
L
= 10kΩ, V
NN
= -40V
to -160V
V
NO_
= V
PP
- 10V, R
L
= 10kΩ, V
NN
= -40V
to -160V
Duty cycle = 50%
(Note 4)
20
5
5
50
µs
µs
kHz
V/ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Note 2:
Specifications at 0°C are guaranteed by correlation and design.
Note 3:
The analog-signal input V
COM_
and V
NO_
must satisfy V
NN
≤
(V
COM_
, V
NO_
)
≤
V
PP
, or remain unconnected during power-up
and power-down.
Note 4:
Guaranteed by design and characterization; not production tested.
_______________________________________________________________________________________
5
ARM技术
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
