19-1675; Rev 0; 4/00
32-Channel Sample/Hold Amplifier
with Output Clamping Diodes
General Description
The MAX5167 contains 32 sample-and-hold amplifiers
driven by a single multiplexed input. The control logic
addressing the outputs is a simple 5-wire input to the
multiplexer. Additional logic allows two devices to function
as a single 64-channel unit. Clamping diodes on each
output allows clamping between two external
reference voltages. The MAX5167 is available with an
output impedance of 50Ω, 500Ω, or 1kΩ.
The MAX5167 operates with +10V and -5V supplies,
and a separate +5V digital logic supply. Manufactured
with a proprietary BiCMOS process, it provides high
accuracy, fast acquisition time, low droop rate, and a
low hold step. The MAX5167 has a typical linearity error
of less than 0.01% and can accurately acquire an 8V
step input signal to 0.01% accuracy in 2.5µs within the
+7V to -4V input signal range. Transitions from sample
mode to hold mode result in only a 0.5mV error. While
in hold mode, the output voltage slowly droops at a rate
of 1mV/s.
The MAX5167 is available in a 48-pin TQFP package and
is specified for both the commercial (0°C to +70°C) and
extended-industrial (-40°C to +85°C) temperature ranges.
o
32-Channel Sample/Hold
o
Output Clamps on Each Channel
o
0.01% Accuracy of Acquired Signal
o
0.01% Linearity Error
o
Fast Acquisition Time: 2.5µs
o
Low Droop Rate: 1mV/s
o
Low Hold Step: 0.25mV
o
Wide Output Voltage Range: +7V to -4V
Features
MAX5167
Ordering Information
PART
MAX5167LCCM
MAX5167MCCM
MAX5167NCCM
MAX5167LECM
MAX5167MECM
MAX5167NECM
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
48 TQFP
R
OUT
(Ω)
50
500
1k
50
500
1k
________________________Applications
Automatic Test Systems (ATE)
Arbitrary Function Generators
Avionics Equipment
ADDR2
ADDR3
ADDR4
SELECT
S/H
CONFIG
V
L
DGND
V
SS
AGND
IN
CH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Pin Configuration
TOP VIEW
ADDR1
ADDR0
OUT31
OUT30
OUT29
OUT28
OUT27
OUT26
OUT25
OUT24
OUT23
OUT22
48
47
46
45
44
43
42
41
40
39
38
37
Industrial Process Controls
36
35
34
33
32
31
30
29
28
27
26
25
19
20
21
22
23
24
OUT21
OUT20
OUT19
OUT18
OUT17
OUT16
V
DD
OUT15
OUT14
OUT13
OUT12
OUT11
MAX5167
________________________________________________________________
Maxim Integrated Products
CL
OUT0
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
OUT9
OUT10
TQFP
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
32-Channel Sample/Hold Amplifier
with Output Clamping Diodes
MAX5167
ABSOLUTE MAXIMUM RATINGS
V
DD
to AGND.......................................................-0.3V to +11.0V
V
SS
to AGND .........................................................-6.0V to +0.3V
V
DD
to V
SS
......................................................................+15.75V
V
L
to DGND ...........................................................-0.3V to +6.0V
V
L
to AGND ...........................................................-0.3V to +6.0V
DGND to AGND.....................................................-0.3V to +2.0V
IN, OUT_ ....................................................................V
SS
to V
DD
Logic Inputs to DGND ...........................................-0.3V to +6.0V
C
H
, C
L
to AGND ..................................................-6.0V to +11.0V
Maximum Current into C
L
and C
H
..................................± 80mA
Maximum Current into Out_.............................................± 10mA
Maximum Current into Logic Inputs ................................± 20mA
Continuous Power Dissipation (T
A
= +70°C)
48-Pin TQFP (derate 12.5mW/°C above +70°C)........1000mW
Operating Temperature Ranges
MAX5167_CCM ..................................................0°C to +70°C
MAX5167_ECM................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
= +10.0V, V
SS
= -5.0V, V
L
= +5.0V ±5%, AGND = DGND = 0, R
L
= 5kΩ, C
L
= 50pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER
ANALOG SECTION
Linearity Error
Hold Step
Droop Rate
Offset Voltage
Output Voltage Range
V
OS
V
OUT_
V
HS
-4.0V < VIN < +7V RL =
∞
IN = AGND
IN = AGND
IN = AGND
T
A
= +25°C
T
A
= +25°C
-30
V
SS
+
0.75
C
L
= 250pF for
MAX5167L
C
L
= 10nF for
MAX5167M/67N
MAX5167L
MAX5167M
MAX5167N
-72
-72
-76
dB
-76
10
35
350
700
2
2
V
SS
V
SS
8V step to 0.08%,
R
L
=
∞,
Figure 2
100mV step to ±1mV,
R
L
=
∞,
Figure 2
Figure 2 (Note1)
V
DD
V
DD
50
500
1000
20
65
650
1300
mA
mA
V
V
Ω
pF
0.01
0.25
1
-5
20
0.08
1.00
40
+30
40
V
DD
-
2.4
%
mV
mV/s
mV
µV/°C
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
+15°C
≤
T
A
≤
+65°C (Note 1)
RL =
∞
Analog Crosstalk
8V step with 500ns
rising edge (Note 1)
C
IN
R
OUT_
I
SOURCE
I
SINK
V
CH
V
CL
(Note 1)
R
L
=
∞,
C
L
= 250pF
V
IN
= 0, sample mode
V
IN
= 0, sample mode
Input Capacitance
DC Output Impedance
Output Source Current
Output Sink Current
Output Clamp High
Output Clamp Low
TIMING PERFORMANCE
T
A
= +25°C
T
A
= +25°C
2.5
1
1
4
µs
Acquisition Time
t
AQ
Hold Mode Settling Time
Aperture Delay
t
H
t
AP
To ±1mV of final value Figure 2 (Note1)
2
200
µs
ns
2
_______________________________________________________________________________________
32-Channel Sample/Hold Amplifier
with Output Clamping Diodes
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +10.0V, V
SS
= -5.0V, V
L
= +5.0V ±5%, AGND = DGND = 0, R
L
= 5kΩ, C
L
= 50pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER
S/H
Pulse Width
Data Setup Time
Data Hold Time
DIGITAL INPUTS
Input Voltage High
Input Voltage Low
Input Current
POWER SUPPLIES
Positive Analog Supply
Negative Analog Supply
Digital Logic Supply
Positive Analog Supply Current
Negative Analog Supply Current
V
DD
V
SS
V
L
I
DD
I
SS
R
L
=
∞
R
L
=
∞
ADDR_ = DGND or V
L
,
S/H
=
DGND or V
L
ADDR_ = +0.8V or +2.0V,
S/H
=
+0.8V or +2.0V
For V
DD
and V
SS
, sample mode,
IN = AGND
-60
-75
(Note 2)
(Note 2)
9.5
-4.75
4.75
10
-5
5
10.5
-5.45
5.25
36
36
0.5
5
V
V
V
mA
mA
mA
mA
dB
V
IH
V
IL
I
I
IN = DGND or V
CC
-1
2.0
0.8
+1
V
V
µA
SYMBOL
t
PW
t
DS
t
DH
CONDITIONS
Figure 2 (Note1)
Figure 2 (Note1)
Figure 2 (Note1)
MIN
200
50
150
TYP
MAX
UNITS
ns
ns
ns
MAX5167
Digital Logic Supply Current
I
L
Power-Supply Rejection Ratio
PSRR
Note 1:
Guaranteed by design.
Note 2:
Do not exceed the absolute maximum rating for V
DD
to V
SS
of +15.75V (see
Absolute Maximum Ratings).
_______________________________________________________________________________________
3
32-Channel Sample/Hold Amplifier
with Output Clamping Diodes
MAX5167
Typical Operating Characteristics
(V
DD
= +10V, V
SS
= -5V, V
L
= +5V, V
IN
= +5V, R
L
=
∞,
C
L
= 0, AGND = DGND = 0, V
CH
= V
DD
, V
CL
= V
SS
, T
A
= +25°C, unless
otherwise noted.)
DROOP RATE vs. INPUT VOLTAGE
MAX5167 TOC 01
DROOP RATE vs. TEMPERATURE
MAX5167 TOC 02
PSRR SAMPLE MODE
NEGATIVE SUPPLY (V
SS
)
-100
POSITIVE SUPPLY (V
DD
)
-80
PSRR (dB)
MAX5167 TOC 03
2.0
1.8
1.6
DROOP RATE (mV/s)
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-4 -3 -2 -1
0
1
2
3
4
5
6
7
INPUT VOLTAGE (V)
50
-120
40
DROOP RATE (mV/s)
30
-60
-40
20
10
-20
0
-40
-15
10
35
60
85
0.1
1
10
100
1000
10,000
TEMPERATURE (°C)
FREQUENCY (kHz)
0
PSRR HOLD MODE
MAX5167 TOC 04
HOLD STEP vs. INPUT VOLTAGE
MAX5167 TOC 05
HOLD STEP vs. TEMPERATURE
115
110
HOLD STEP (µV)
105
100
95
90
85
80
MAX5167 TOC 06
-120
POSITIVE SUPPLY (V
DD
)
-100
-80
PSRR (dB)
NEGATIVE SUPPLY (V
SS
)
-60
-40
-20
0
0.1
1
10
100
1000
-160
-140
-120
HOLD STEP (µV)
-100
-80
-60
-40
-20
0
120
10,000
-4 -3 -2 -1
0
1
2
3
4
5
6
7
-55
-35
-15
5
25
45
65
85
FREQUENCY (kHz)
INPUT VOLTAGE (V)
TEMPERATURE (°C)
OFFSET VOLTAGE vs. INPUT VOLTAGE
MAX5167 TOC 07
OFFSET VOLTAGE vs. TEMPERATURE
MAX5167 TOC 08
-3.0
-3.2
-3.4
OFFSET VOLTAGE (mV)
-3.6
-3.8
-4.0
-4.2
-4.4
-4.6
-4.8
-5.0
-4 -3 -2 -1
0
1
2
3
4
5
6
7
INPUT VOLTAGE (V)
0
-1
OFFSET VOLTAGE (mV)
-2
-3
-4
-5
-6
-7
-40
-15
10
35
60
85
TEMPERATURE (°C)
4
_______________________________________________________________________________________
32-Channel Sample/Hold Amplifier
with Output Clamping Diodes
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14–29
30
31–46
47
48
NAME
ADDR2
ADDR3
ADDR4
SELECT
S/H
CONFIG
V
L
DGND
V
SS
AGND
IN
CH
CL
OUT0–OUT15
V
DD
OUT16–OUT31
ADDR0
ADDR1
Bit 2 of the Address Decoder
Bit 3 of the Address Decoder
Bit 4 of the Address Decoder
Enables the
S/H
pin. The polarity of SELECT is determined by the state of the CONFIG pin. If CONFIG
is low, then SELECT is active-high. If CONFIG is high, then SELECT is active-low. When SELECT is not
in its active state, all 32 channels are in hold mode independent of the
S/H
pin.
Puts the selected channel into sample mode when low. Places all channels into hold mode when high.
Sets the polarity of the SELECT pin.
+5V Logic Supply
Digital GND
-5V Analog Supply
Analog GND
Input Pin
Clamp High Pin
Clamp Low Pin
Output 0–15 Pin
+10V Analog Supply
Output 16–31 Pin
Bit 0 of the Address Decoder
Bit 1 of the Address Decoder
FUNCTION
MAX5167
_______________________________________________________________________________________
5
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