MAX4802CCM [MAXIM]
Low-Charge Injection, 8-Channel, High-Voltage Analog Switches; 低电荷注入， 8通道，高压模拟开关
| 型号： | MAX4802CCM |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Low-Charge Injection, 8-Channel, High-Voltage Analog Switches |
| 文件： | 总21页 (文件大小：1085K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-0631; Rev 1; 3/07
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
General Description
Features
The MAX4800/MAX4801/MAX4802 provide high-volt-
age switching 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 digital
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.
♦ Pin-Compatible Replacement for Supertex
HV20220 (MAX4800)
♦ Pin-Compatible Replacement for Supertex
HV20320 (MAX4801)
♦ Pin-Compatible Replacement for Supertex HV232
(MAX4802)
♦ Flexible High-Voltage Supplies Up to V - V
=
NN
PP
200V
The MAX4800/MAX4801/MAX4802 operate with a wide
range of high-voltage supplies including: V /V
=
PP NN
♦ Low-Charge Injection, Low-Capacitance 22Ω
+100V/-100V, +185V/-15V, and +40V/-160V. The digital
interface operates from a separate V supply from
Switches
DD
♦ DC to 10MHz Analog-Signal Frequency Range
♦ -77dB Off Isolation at 5MHz
+2.7V to +13.2V. Digital inputs DIN, CLK, LE, and CLR
are +13.2V tolerant, independent of the V supply
DD
voltage. The MAX4802 provides integrated 35kΩ bleed
resistors on each switch terminal to discharge capaci-
tive loads.
♦ Low 10µA Quiescent Current
♦ Integrated Bleed Resistors (MAX4802)
The MAX4800 and MAX4802 are drop-in replacements
for the Supertex HV20220 and HV232. The devices are
available in the 48-pin TQFP, 26-bump CSBGA, 28-pin
PLCC, and 48-pin TQFN packages. The MAX4801 is a
drop-in replacement for the Supertex HV20320 and is
available in the 28-pin PLCC package. All devices are
specified for the commercial 0°C to +70°C temperature
range.
♦ Available in PLCC, TQFP, TQFN, and CSBGA
Packages
Applications
Ultrasound Imaging
Printers
Ordering Information/Selector Guide
BLEED
RESISTORS
PART
SECOND SOURCE
PIN-PACKAGE
PACKAGE CODE
MAX4800CCM
MAX4800CQI
MAX4800CTM*
MAX4800CXZ*
MAX4801CQI*
MAX4802CCM
MAX4802CQI
MAX4802CTM*
MAX4802CXZ*
No
No
HV20220FG
HV20220PJ
HV220**
48 TQFP
28 PLCC
48 TQFN
26 CSBGA
28 PLCC
48 TQFP
28 PLCC
48 TQFN
26 CSBGA
C48-6
Q28-4
No
T4866-1
X07265-1
Q28-4
No
HV220**
No
HV20320PJ
HV232FG
HV232PJ
HV230**
Yes
Yes
Yes
Yes
C48-6
Q28-4
T4866-1
X07265-1
HV230GA
Note: All devices are specified over the commercial 0°C to +70°C temperature range.
*Future product—contact factory for availability.
**Not pin-for-pin compatible.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas 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
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
48-Pin TQFP (derate 22.7mW/°C above +70°C).........1818mW
V
V
V
V
Logic-Supply Voltage .....................................-0.5V to +15V
48-Pin TQFN (derate 27.8mW/°C above +70°C) ........2222mW
26-Pin CSBGA (derate 11.8mW/°C above +70°C) .......941mW
Operating Temperature Range...............................0°C to +70°C
Storage Temperature Range.............................-65°C to +150°C
Junction Temperature Range ..........................................+150°C
Lead Temperature (Soldering, 10s).................................+300°C
Bump Temperature (Soldering) Lead-Free......................+260°C
Bump Temperature (Soldering) Lead..............................+245°C
DD
PP
PP
NN
- V
Supply Voltage ....................................................220V
NN
Positive-Supply Voltage........................-0.5V to V
+ 220V
NN
Negative-Supply Voltage..............................+0.5V to -220V
Logic Inputs LE, CLR, CLK, DIN ............................-0.5V to +15V
DOUT............................................................-0.5V to V + 0.5V
RGND (MAX4802) ................................................-4.5V to + 0.5V
DD
COM_, NO_.................................................................V to V
NN
PP
Continuous Power Dissipation (T = +70°C)
A
28-Pin PLCC (derate 10.5mW/°C above +70°C) ..........842mW
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
= +2.7V to +13.2V, V = +40V to V
+ 200V, V
= -15V to -160V, T = T
A
to T
, unless otherwise noted. Typical values
MAX
DD
PP
NN
NN
MIN
are at T = +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
V
V
,
V
+
V
PP
10
-
COM_
NN
10
Analog Signal Range
(Note 2)
V
NO_
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
= 0°C
30
38
48
25
27
32
25
27
30
18
24
27
23
25
30
22
25
27
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
I
I
= 5mA
=
= +25°C
= +70°C
= 0°C
26
22
22
18
20
16
COM
V
V
V
= +40V,
= -160V,
PP
NN
= 0
COM_
COM
= +25°C
= +70°C
= 0°C
200mA
I
= 5mA
= +25°C
= +70°C
= 0°C
COM
V
V
V
= +100V,
= -100V,
PP
Small-Signal Switch
On-Resistance
R
Ω
ONS
NN
= 0
COM_
I
=
COM
= +25°C
= +70°C
= 0°C
200mA
V
V
or
V
V
V
= +160V,
= -40V
PP
I
= 5mA
= +25°C
= +70°C
= 0°C
COM
NN
= +185V,
= -15V,
PP
I
=
COM
NN
= +25°C
= +70°C
200mA
= +100V, V = -100V,
PP NN
= 0
COM _
Small-Signal Switch
On-Resistance Matching
V
V
∆R
5
20
%
Ω
ONS
= 0, I
= 5mA
COM_
COM
Large-Signal Switch
On-Resistance
R
V
= V - 10V, I = 1A
COM
15
35
ONL
COM_
PP
NO_ or COM_ to RGND (MAX4802), switch
off
Shunt Resistance
R
30
50
kΩ
INT
2
_______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(V
= +2.7V to +13.2V, V = +40V to V
+ 200V, V
= -15V to -160V, T = T
A
to T
, unless otherwise noted. Typical values
MAX
DD
PP
NN
NN
MIN
are at T = +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
T
A
= +25°C
1
4
V
, V
= V - 10V or
COM_ NO_ PP
I
unconnected;
RGND unconnected
(MAX4802)
COM_(OFF),
Switch-Off Leakage
µA
T
to T
= T
A
MIN
MAX
I
NO_(OFF)
10
R = 100kΩ (MAX4800/MAX4801),
No load (MAX4802)
L
Switch-Off DC Offset
Switch-On DC Offset
100
100
300
500
mV
mV
R =100kΩ (MAX4800/MAX4801),
L
No load (MAX4802)
T
T
T
= 0°C
3
2
2
A
A
A
Switch-Output Peak Current
(Note 3)
I
duty cycle ≤ 0.1%
= +25°C
= +70°C
3
A
COM_
V
– V
≤ 200V
PP
NN
300
30
COM_, NO1–NO7
V – V
PP
≤ 200V, NO0
Switch-Output Isolation Diode
Current
(Note 3)
300ns pulse width, 2%
duty cycle
NN
mA
V
– V ≤ 160V
PP
NN
750
COM_, NO_
SWITCH DYNAMIC CHARACTERISITICS
f = 5MHz, R = 1kΩ, C = 15pF
-30
-58
-60
-33
-77
-80
L
L
Off-Isolation (Note 3)
Crosstalk (Note 3)
V
dB
dB
ISO
f = 5MHz, R = 50Ω
L
V
f = 5MHz, R = 50Ω
L
CT
COM_, NO_
Off-Capacitance
(Note 3)
C
COM_
V
= 0, V = 0, f = 1MHz
NO_
4
11
36
18
pF
(OFF),
COM_
COM_
C
NO_ (OFF)
COM_ On-Capacitance
(Note 3)
C
COM_
(ON)
V
= 0, f = 1MHz
20
56
pF
Output-Voltage Spike (Note 3)
V
R = 50Ω
L
-150
+150
mV
SPK
V
V
V
= +40V, V = -160V, V = 0
COM_
820
600
350
PP
PP
PP
NN
Charge Injection
Q
pC
= +100V, V = -100V, V
= 0
COM_
NN
= +160V, V = -40V, V
NN
= 0
COM_
LOGIC LEVELS
V
V
≥ +4.5V
1.5
DD
DD
Logic-Input Low Voltage
V
V
V
IL
< +4.5V
0.75
V
1.5
-
DD
V
V
≥ +4.5V
DD
DD
Logic-Input High Voltage
V
IH
V
0.75
-
DD
< +4.5V
Logic-Input Capacitance (Note 3)
Logic-Input Leakage
C
10
+1
0.4
0.4
pF
µA
V
IN
I
IN
-1
V
V
≥ +4.5V, I
= 1mA
DD
DD
SINK
DOUT Low Voltage
V
OL
< +4.5V, I
= 0.5mA
V
SINK
_______________________________________________________________________________________
3
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
ELECTRICAL CHARACTERISTICS (continued)
(V
= +2.7V to +13.2V, V = +40V to V
+ 200V, V
= -15V to -160V, T = T
A
to T
, unless otherwise noted. Typical values
MAX
DD
PP
NN
NN
MIN
are at T = +25°C.) (Note 1)
A
PARAMETER
DOUT High Voltage
POWER SUPPLIES
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
-
DD
V
V
≥ +4.5V, I
= 0.5mA
V
DD
DD
SOURCE
0.5
V
OH
V
-
DD
< +4.5V, I
= 0.25mA
V
SOURCE
0.5
V
Supply Voltage
2.7
40
13.2
V
V
DD
V
+
NN
V
Supply Voltage
PP
200
V
V
Supply Voltage
-160
-15
15
V
NN
DD
Supply Quiescent Current
I
V
V
= 0, V = V , f = 0
DD CLK
µA
DDQ
IL
IH
= +5V, V = 0, V = +5V,
DD
IL
IH
V
V
Supply Dynamic Current
Supply Quiescent Current
I
4
mA
µA
DD
PP
DD
f
= 5MHz
CLK
All switches remain on or off, I
5mA
=
COM_(ON)
I
10
50
PPQ
T
T
T
T
T
T
T
T
T
= 0°C
6.5
6.5
6.5
4.0
4.0
4.0
4.0
4.0
4.0
A
A
A
A
A
A
A
A
A
V
V
= +40V,
= -160V
PP
= +25°C
= +70°C
= 0°C
NN
50kHz
output
switching
frequency
with no load
V
V
= +100V,
= -100V
PP
= +25°C
= +70°C
= 0°C
V
V
V
Supply Dynamic Current
Supply Quiescent Current
Supply Dynamic Current
I
mA
µA
PP
PP
NN
V
V
= +160V,
= -40V
PP
= +25°C
= +70°C
NN
All switches remain on or off, I
5mA
=
COM_(ON)
I
10
50
NN
NN
NNQ
T
T
T
T
T
T
T
T
T
= 0°C
6.5
6.5
6.5
4.0
4.0
4.0
4.0
4.0
4.0
A
A
A
A
A
A
A
A
A
V
V
= +40V,
= -160V
PP
= +25°C
= +70°C
= 0°C
NN
50kHz
output
switching
frequency
with no load
V
V
= +100V,
= -100V
PP
= +25°C
= +70°C
= 0°C
I
mA
NN
NN
V
V
= +160V,
= -40V
PP
= +25°C
= +70°C
NN
4
_______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
TIMING CHARACTERISTICS
(V
= +2.7V to +13.2V, V = +40V to V
+ 200V, V
= -15V to -160V, T = T
A
to T
, unless otherwise noted. Typical values
MAX
DD
PP
NN
NN
MIN
are at T = +25°C.) (Note 1)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
V
= V - 10V, R = 10kΩ, V
= -40V
= -40V
NO_
PP
L
NN
NN
Turn-On Time
t
5
µs
ON
to -160V
V
= V - 10V, R = 10kΩ, V
NO_
PP
L
Turn-Off Time
t
5
µs
OFF
to -160V
Output Switching Frequency
f
Duty cycle = 50%
50
kHz
V/ns
SW
Maximum V
, V
Slew
COM_ NO_
dV/dt
(Note 3)
20
Rate
LOGIC TIMING (Figure 1)
V
V
V
V
≥ +4.5V
≤ +4.5V
≥ +4.5V
< +4.5V
5
2.5
10
4
DD
DD
DD
DD
Daisy chaining
CLK Frequency
f
MHz
CLK
No daisy chaining
V
V
V
V
V
V
V
V
V
V
V
V
≥ +4.5V
< +4.5V
≥ +4.5V
< +4.5V
≥ +4.5V
< +4.5V
≥ +4.5V
< +4.5V
≥ +4.5V
< +4.5V
15
40
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
DIN to CLK Setup Time
DIN to CLK Hold Time
CLK to LE Setup Time
LE Low-Pulse Width
t
ns
ns
ns
ns
ns
µs
DS
35
t
DH
60
150
300
150
300
150
300
t
CS
WL
WC
t
CLR High-Pulse Width
CLK Rise and Fall Times
t
≥ +4.5V (Note 3)
1
t , t
R
F
< +4.5V (Note 3)
1
T
= 0°C
55
60
70
150
150
150
A
A
A
V
50pF
= +5V 10%, C
≤
DD
L
T
T
= +25°C
= +70°C
CLK to DOUT Delay
t
ns
DO
V
50pF
= +3V 10%, C
≤
T
T
= T
MAX
to
DD
L
A
MIN
70
280
Note 1: Specifications at 0°C are guaranteed by correlation and design. Electrical parameters are tested at worst case conditions.
Note 2: The analog signal input V
and V
must satisfy V
≤ (V
, V
) ≤ V , or remain unconnected during power-up
COM_
NO_
NN
COM_ NO_ PP
and power-down.
Note 3: Guaranteed by characterization; not production tested.
_______________________________________________________________________________________
5
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Typical Operating Characteristics
(V
DD
= +5V, V = +100V, V
= -100V, T = +25°C, unless otherwise noted.)
PP
NN
A
I
DD
SUPPLY CURRENT
ON-RESISTANCE
vs. CLOCK FREQUENCY
OFF-ISOLATION vs. FREQUENCY
vs. TEMPERATURE
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-100
-95
-90
-85
-80
-75
-70
-65
-60
30
25
20
15
10
5
R
S
= R = 50Ω
L
I
= 5mA
SW
DIN = 01010101
DIN = 00000000
I
= 200mA
SW
0
0.01
0.1
1
10
0
10
20
30
40
50
60
70
1
10
CLOCK FREQUENCY (MHz)
TEMPERATURE (°C)
FREQUENCY (MHz)
ON-RESISTANCE
SUPPLY CURRENT
vs. V /V SUPPLY VOLTAGE
vs. SWITCHING FREQUENCY
t
DO
vs. TEMPERATURE
PP NN
6.0
40
180
160
140
120
100
80
ALL SWITCHES OPERATING
ALL SWITCHES CONNECTED TO GND
35
30
25
20
15
10
5
5.0
4.0
3.0
2.0
1.0
V
= +3V
I
DD
NN
T
A
= +70°C
I
PP
V
DD
= +5V
60
T
A
= 0°C
T
A
= +25°C
40
20
I
DD
0
0
0
+40/ +60/
-160 -140
+80/ +100/ +120/ +140/ +160/
-120 -100 -80 -60 -40
0
10 20 30 40 50 60 70 80 90 100
SWITCHING FREQUENCY (kHz)
0
10
20
30
40
50
60
70
TEMPERATURE (°C)
V /V SUPPLY VOLTAGE (V)
PP NN
LOGIC THRESHOLD
SUPPLY CURRENT
vs. V SUPPLY VOLTAGE
DD
vs. V /V SUPPLY VOLTAGE
PP NN
8
7
6
5
4
3
2
1
0
0.45
0.40
0.35
0.30
0.25
0.20
ONE SWITCH OPERATING
ALL SWITCHES CONNECTED TO GND
f
= 50kHz
SW
I
NN
RISING
FALLING
I
PP
2
4
6
8
10
12
14
+40/ +60/
-160 -140
+80/ +100/ +120/ +140/ +160/
-120 -100 -80 -60 -40
V
DD
SUPPLY VOLTAGE (V)
V /V SUPPLY VOLTAGE (V)
PP NN
6
_______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Pin Descriptions
PIN
NAME
FUNCTION
MAX4800
TQFP
MAX4800
TQFN
MAX4800
CSBGA
MAX4800
PLCC
MAX4801
PLCC
1
48
E4
26
26
COM5
Analog Switch 5
1, 2, 4, 6, 7,
9, 11, 13, 15,
17, 19, 21,
23, 25, 27,
34, 37, 39,
41, 43, 45,
47
2, 4, 6, 7, 9,
11, 13, 15, 17,
19, 21, 23, 26,
27, 30, 31, 32,
38, 40, 42, 44,
46, 48
D6
9, 11, 15
11, 14, 15
N.C.
No Connection. Not connected internally.
3
3
E1
E3
D1
D3
D4
C3
C4
A4
C5
D5
27
28
1
27
28
1
COM4
NO4
Analog Switch 4
Analog Switch 4
Analog Switch 3
Analog Switch 3
Analog Switch 2
Analog Switch 2
Analog Switch 1
Analog Switch 1
Analog Switch 0
Analog Switch 0
5
5
8
8
COM3
NO3
10
12
14
16
18
20
22
10
12
14
16
18
20
22
2
2
3
3
COM2
NO2
4
4
5
5
COM1
NO1
6
6
7
7
COM0
NO0
8
8
Positive High-Voltage Supply. Bypass V to
PP
GND with a 0.1µF or greater ceramic capacitor.
24
24
C6
10
9
V
PP
Negative High-Voltage Supply. Bypass V to
NN
GND with a 0.1µF or greater ceramic capacitor.
25
28
29
26
29
30
C7
D7
D9
12
13
14
10
12
13
V
NN
GND
Ground
Digital-Supply Voltage. Bypass V to GND
DD
with a 0.1µF or greater ceramic capacitor.
V
DD
33
34
35
36
37
39
41
43
45
47
31
32
33
35
36
38
40
42
44
46
E9
E7
E6
F7
F6
E5
F5
F4
H4
F3
16
17
18
19
20
21
22
23
24
25
16
17
18
19
20
21
22
23
24
25
DIN
CLK
Serial Data Input
Serial Clock Input
LE
Latch Enable Input, Active Low
Latch Clear Input
CLR
DOUT
COM7
NO7
COM6
NO6
NO5
Serial Data Output
Analog Switch 7
Analog Switch 7
Analog Switch 6
Analog Switch 6
Analog Switch 5
Exposed Paddle. Connect exposed paddle to
—
EP
—
—
—
EP
V
.
NN
_______________________________________________________________________________________
7
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Pin Descriptions (continued)
PIN
NAME
FUNCTION
MAX4802
TQFP
MAX4802
TQFN
MAX4802
CSBGA
MAX4802
PLCC
1
48
E4
26
COM5
Analog Switch 5
2, 4, 6, 7, 9,
1, 2, 4, 6, 7,
11,13, 15, 17, 9, 11, 13, 15,
19, 21, 23, 26,
30, 31, 32, 38,
40, 42, 44, 46,
48
17, 19, 21,
23, 25, 27,
34, 37, 39,
—
9, 15
N.C.
Not Connected Internally
41, 43, 45, 47
3
3
E1
E3
D1
D3
D4
C3
C4
A4
C5
D5
27
28
1
COM4
NO4
Analog Switch 4
Analog Switch 4
Analog Switch 3
Analog Switch 3
Analog Switch 2
Analog Switch 2
Analog Switch 1
Analog Switch 1
Analog Switch 0
Analog Switch 0
5
5
8
8
COM3
NO3
10
12
14
16
18
20
22
10
12
14
16
18
20
22
2
3
COM2
NO2
4
5
COM1
NO1
6
7
COM0
NO0
8
Positive High-Voltage Supply. Bypass V to GND with
PP
a 0.1µF or greater ceramic capacitor.
24
25
24
26
C6
C7
10
12
V
PP
Negative High-Voltage Supply. Bypass V to GND
NN
V
NN
with a 0.1µF or greater ceramic capacitor.
Bleed Resistor Ground
Ground
27
28
28
29
D6
D7
11
13
RGND
GND
Digital-Supply Voltage. Bypass V
0.1µF or greater ceramic capacitor.
to GND with a
DD
29
30
D9
14
V
DD
33
34
35
36
37
39
41
43
45
47
—
31
32
33
35
36
38
40
42
44
46
EP
E9
E7
E6
F7
F6
E5
F5
F4
H4
F3
—
16
17
18
19
20
21
22
23
24
25
—
DIN
CLK
LE
Serial Data Input
Serial Clock Input
Latch Enable Input, Active Low
Latch Clear Input
CLR
DOUT
COM7
NO7
COM6
NO6
NO5
EP
Serial Data Output
Analog Switch 7
Analog Switch 7
Analog Switch 6
Analog Switch 6
Analog Switch 5
Exposed Paddle. Connect exposed paddle to V
.
NN
8
_______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
D
N-1
50%
D
N
50%
DIN
D
N+1
t
WL
50%
50%
LE
t
CS
50%
50%
CLK
t
t
DS
DH
t
DO
DOUT
t
ON
ON
90%
SWITCH
OFF
10%
t
OFF
50%
50%
CLR
t
WC
Figure 1. Serial Interface Timing
resistors on each switch terminal to discharge capaci-
tive loads.
Detailed Description
The MAX4800/MAX4801/MAX4802 provide high-volt-
age switching on eight channels for ultrasound imaging
and printer applications. The devices utilize BCDMOS
process technology to provide eight high-voltage low-
charge-injection SPST switches, controlled by a digital
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 MAX4800 and MAX4802 are drop-in replacements
for the Supertex HV20220 and HV232, respectively.
The MAX4801 is a drop-in replacement for the Supertex
HV20320.
Analog Switch
The MAX4800/MAX4801/MAX4802 allow a peak-to-
peak analog signal range from V
+ 10V to V - 10V.
PP
NN
Analog switch inputs must be unconnected, or satisfy
The MAX4800/MAX4801/MAX4802 operate with a wide
V
≤ (V
, V
) ≤ V during power-up and
PP
NN
COM_
NO_
range of high-voltage supplies including: V /V
=
PP NN
power-down.
+100V/-100V, +185V/-15V, or +40V/-160V. The digital
interface operates from a separate V supply from
High-Voltage Supplies
The MAX4800/MAX4801/MAX4802 allow a wide range
DD
+2.7V to +13.2V. Digital inputs DIN, CLK, LE, and CLR
are +13.2V tolerant, independent of the V supply
of high-voltage supplies. The devices operate with V
NN
DD
from -160V to -15V and V from +40V to V + 200V.
voltage. The MAX4802 provides integrated 35kΩ bleed
PP
NN
_______________________________________________________________________________________
9
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
LE
CLK
DIN
D6
D6
D5
D5
D4
D4
D3
D3
D2
D2
D1
D1
D7
D0
MSB
LSB
DOUT
D7
D0
D7
DATA FROM PREVIOUS DATA BYTE POWER-UP DEFAULT: D7-D0 = 0
Figure 2. Latch Enable Interface Timing
When V
is connected to GND (single-supply applica-
Latch Enable (LE)
NN
tions), the devices operate with V up to +200V. The
Drive LE logic-low to change the contents of the latch
and update the state of the high-voltage switches
(Figure 2). Drive LE logic-high to freeze the contents of
the latch and prevent changes to the switch states. To
reduce noise due to clock feedthrough, drive LE logic-
high while data is clocked into the shift register. After
the data shift register is loaded with valid data, pulse
LE logic-low to load the contents of the shift register
into the latch.
PP
V
and V
high-voltage supplies are not required to
PP
NN
be symmetrical, but the voltage difference V - V
PP
NN
must not exceed 200V.
Bleed Resistors (MAX4802)
The MAX4802 features integrated 35kΩ bleed resistors
to discharge capacitive loads such as piezoelectric
transducers. Each analog switch terminal is connected
to RGND with a bleed resistor.
Latch Clear (CLR)
The MAX4800/MAX4801/MAX4802 feature a latch clear
input. Drive CLR logic-high to reset the contents of the
latch to zero and open all switches. CLR does not
affect the contents of the data shift register. Pulse LE
logic-low to reload the contents of the shift register into
the latch.
Serial Interface
The MAX4800/MAX4801/MAX4802 are controlled by a
serial interface with an 8-bit serial shift register and
transparent latch. Each of the eight data bits controls a
single analog switch (see Table 1). Data on DIN is
clocked with the most significant bit (MSB) first into the
shift register on the rising edge of CLK. Data is clocked
out of the shift register onto DOUT on the rising edge of
CLK. DOUT reflects the status of DIN, delayed by eight
clock cycles (see Figures 1 and 2).
Power-On Reset
The MAX4800/MAX4801/MAX4802 feature a power-on
reset circuit to ensure all switches are open at power-
on. The internal 8-bit serial shift register and latch are
set to zero on power-up.
10 ______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Table 1. Serial Interface Programming
DATA BITS
CONTROL BITS
FUNCTION
D0
(LSB)
D7
(MSB)
D1
D2
D3
D4
D5
D6
CLR
SW0
SW1
SW2
SW3
SW4
SW5
SW6
SW7
LE
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
OFF
ON
H
L
OFF
ON
H
L
OFF
ON
H
L
OFF
ON
H
L
OFF
ON
H
L
OFF
ON
H
L
OFF
ON
H
L
H
X
X
OFF
ON
X
X
X
X
X
X
X
X
X
X
X
X
X
X
HOLD PREVIOUS STATE
OFF OFF OFF OFF
OFF
OFF
OFF
OFF
X = Don’t Care
Supply Sequencing and Bypassing
The MAX4800/MAX4801/MAX4802 do not require spe-
cial sequencing of the V , V , and V supply volt-
Applications Information
Logic Levels
DD PP
NN
The MAX4800/MAX4801/MAX4802 digital interface
ages; however, analog switch inputs must be
unconnected, or satisfy V ≤ (V , V ) ≤ V
inputs CLK, DIN, LE, and CLR are tolerant of up to
NN
COM_
NO_
PP
,
+13.2V, independent of the V
supply voltage, allow-
DD
during power-up and power-down. Bypass V , V
DD NN
ing compatibility with higher voltage controllers.
and V
to GND with a 0.1µF ceramic capacitor as
PP
close to the device as possible.
Daisy Chaining Multiple Devices
Digital output DOUT is provided to allow the connection
of multiple MAX4800/MAX4801/MAX4802 devices by
daisy chaining (Figure 3). Connect each DOUT to the
DIN of the subsequent device in the chain. Connect CLK,
LE, and CLR inputs of all devices, and drive LE logic-low
to update all devices simultaneously. Drive CLR high to
open all the switches simultaneously. Additional shift reg-
isters may be included anywhere in series with the
MAX4800/MAX4801/MAX4802 data chain.
Exposed Paddle
The MAX4800 and MAX4802 provide an exposed pad-
dle for improved thermal performance in the TQFN
package. Connect the exposed paddle to V
.
NN
Chip Information
PROCESS: BCDMOS
CONNECT EXPOSED PADDLE TO V
NN
______________________________________________________________________________________ 11
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
U10
DOUT
U11
DOUT
U1n
DOUT
DIN
DIN
DIN
DIN
MAX4800
MAX4800
MAX4800
CLK
CLK
CLK
CLK
LE
LE
LE
LE
CLR
CLR
CLR
CLR
Figure 3. Interfacing Multiple Devices by Daisy-Chaining
Functional Diagrams
V
DD
V
PP
MAX4800
MAX4801
COM0
NO0
LEVEL
SHIFTER
DIN
SHIFT
REGISTER
LATCH
CLK
DOUT
COM7
NO7
LEVEL
SHIFTER
CLR
LE
V
NN
GND
12 ______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Functional Diagrams (continued)
V
DD
V
PP
MAX4802
LATCH
COM0
NO0
LEVEL
SHIFTER
DIN
CLK
SHIFT
REGISTER
COM7
NO7
DOUT
LEVEL
SHIFTER
CLR
LE
RGND
V
NN
GND
______________________________________________________________________________________ 13
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Pin Configurations
TOP VIEW
27 26 25
36 35 34 33 32 31 30 29 28
35 34 33 32 31 30 29 28 27
36
26
25
24
23
22
21
20
19
18
17
16
15
14
13
N.C. 37
V
PP
38
39
40
41
42
43
44
45
46
47
48
COM7
N.C
N.C.
NO0
N.C.
COM0
N.C.
NO1
N.C.
COM1
N.C.
NO2
N.C.
V
37
38
39
40
24
DOUT
PP
23 N.C.
N.C.
COM7
NO0
22
21
NO7
N.C.
N.C.
N.C.
COM0
NO7 41
N.C. 42
COM6 43
N.C. 44
NO6 45
20
19
18
COM6
N.C.
N.C.
NO1
MAX4800
MAX4802
MAX4800
MAX4802
NO6
17 N.C.
16 COM1
N.C.
46
15
14
13
N.C.
NO2
N.C.
N.C.
NO5
*EP
NO5 47
N.C.
48
N.C.
COM5
2
3
4
5
6
7
8
9
10
1
11
12
10 11 12
9
1
2
3
4
5
6
7
8
TQFN
6mm x 6mm
TQFP
7mm x 7mm
*EXPOSED PADDLE CONNECTED TO V
NN
()MAX4802 ONLY
()MAX4802 ONLY
4
3
2
1
28 27 26
4
3
2
1
28 27 26
5
6
NO5
5
NO5
NO6
25
24
23
22
25
24
23
COM1
NO1
COM1
NO6
6
7
NO1
COM0
NO0
COM6
NO7
COM6
COM0
NO0
7
MAX4800
MAX4802
MAX4801
8
8
22 NO7
9
21 COM7
9
21 COM7
N.C.
V
V
PP
DOUT
20
10
11
DOUT
10
11
20
V
PP
NN
19
CLR
19 CLR
N.C. (RGND)
N.C.
12 13 14 15 16 17 18
12 13 14 15 16 17 18
PLCC
PLCC
()MAX4802 ONLY
14 ______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Pin Configurations (continued)
TOP VIEW
1
2
3
4
5
6
7
8
9
A4
A
B
C
D
E
MAX4800
MAX4802
NO1
C3
NO2
D3
C4
C5
C6
C7
V
PP
V
COM1 COM0
D4
D5
NN
D6
D7
D9
D1
COM3
E1
V
DD
NO3 COM2 NO0 N.C. (RGND)
GND
E7
E3
E4
COM5 COM7
F4
F5
E5
E6
E9
LE
F6
NO4
F3
CLK
F7
COM4
DIN
F
NO5
COM6 NO7
DOUT
CLR
G
H
H4
NO6
CSBGA
()MAX4802 ONLY
______________________________________________________________________________________ 15
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
e
MILLIMETERS
INCHES
MIN MAX MIN
D 0.385 0.395 9.78
D1 0.350 0.356 8.89
D2 0.290 0.330 7.37
MILLIMETERS
INCHES
MIN MAX MIN
0.165 0.180 4.20
MAX
10.03
9.04
N
MAX
4.57
3.04
3.96
---
0.53
0.81
0.28
20 AA
A
A1 0.090 0.120 2.29
A2 0.145 0.156 3.69
8.38
D D1 D3
A3 0.020 ---
0.013 0.021 0.33
B1 0.026 0.032 0.66
0.51
D3 0.200 REF
5.08 REF
B
N
28 AB
44 AC
52 AD
68 AE
D
0.485 0.495 12.32 12.57
D1 0.450 0.456 11.43 11.58
D2 0.390 0.430 9.91 10.92
D3 0.300 REF 7.62 REF
C
e
0.009 0.011 0.23
0.050 1.27
D3
D1
D
D
0.685 0.695 17.40 17.65
D1 0.650 0.656 16.51 16.66
D2 0.590 0.630 14.99 16.00
D3 0.500 REF
12.70 REF
D
0.785 0.795 19.94 20.19
D1 0.750 0.756 19.05 19.20
D2 0.690 0.730 17.53 18.54
D3 0.600 REF
A2
A
A1
15.24 REF
B1
B
D
0.985 0.995 25.02 25.27
D1 0.950 0.958 24.13 24.33
D2 0.890 0.930 22.61 23.62
C
D2
A3
D3 0.800 REF
20.32 REF
NOTES:
1. D1 DOES NOT INCLUDE MOLD FLASH.
2. MOLD FLASH OR PROTRUSIONS NOT TO EXCEED
.20mm (.008") PER SIDE.
3. LEADS TO BE COPLANAR WITHIN .10mm.
4. CONTROLLING DIMENSION: MILLIMETER
5. MEETS JEDEC MO047-XX AS SHOWN IN TABLE.
6. N = NUMBER OF PINS.
PROPRIETARY INFORMATION
TITLE:
FAMILY PACKAGE OUTLINE:
20L, 28L, 44L, 52L, 68L PLCC
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0049
D
1
16 ______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
______________________________________________________________________________________ 17
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, 32/48L TQFP, 7x7x1.4mm
1
21-0054
E
2
18 ______________________________________________________________________________________
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
PACKAGE OUTLINE, 32/48L TQFP, 7x7x1.4mm
2
21-0054
E
2
______________________________________________________________________________________ 19
Low-Charge Injection,
8-Channel, High-Voltage Analog Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
20 ______________________________________________________________________________________
Low-Charge, Injection
8-Channel, High-Voltage Analog Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
Revision History
Pages changed at Rev 1: 1, 7, 8, 14, 18, 19, 20, 21
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 21
© 2007 Maxim Integrated Products
Boblet
is a registered trademark of Maxim Integrated Products, Inc.
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