circuit designed for use in precision, high-speed, data-
acquisition applications.
The circuit employs an input transconductance ampli-
fier capable of providing large amounts of charging
current to the holding capacitor, thus enabling fast
acquisition times. It also incorporates a low leakage
analog switch and an output integrating amplifier with
input bias current optimized to assure low droop rates.
Since the analog switch always drives into a load at
virtual ground, charge injection into the holding ca-
pacitor is constant over the entire input voltage range.
As a result, the charge offset (pedestal voltage) result-
ing from this charge injection can be adjusted to zero
by use of the offset adjustment capability. The device
includes an internal holding capacitor to simplify ease
of application; however, provision is also made to add
additional external capacitance to improve the output
voltage droop rate.
The SHC5320 is manufactured using a dielectric iso-
lation process which minimizes stray capacitance (en-
abling higher-speed operation), and eliminates latch-
up associated with substrate SCRs. The SHC5320KH,
KP, and KU feature fully specified operation over the
extended industrial temperature range of –40°C to
+85°C, while the SHC5320SH operates over the tem-
perature range of –55°C to +125°C. The device re-
quires
±15V
supplies for operation, and is packaged in
a reliable 14-pin ceramic or plastic dual-in-line pack-
age, as well as a 16-pin surface mount plastic package.
APPLICATIONS
q
PRECISION DATA ACQUISITION
SYSTEMS
q
DIGITAL-TO-ANALOG CONVERTER
DEGLITCHER
q
AUTO ZERO CIRCUITS
q
PEAK DETECTORS
External
Hold
Capacitor
100pF
–Input
–
+Input
+
Mode
Control
Reference Bandwidth
Common Control
Output
Offset
Adjust
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
At +25°C, rated power supplies, gain = +1, and with internal holding capacitor, unless otherwise noted.
SHC5320KH, KP, KU
PARAMETERS
INPUT CHARACTERISTICS
ANALOG
Voltage Range
Common-Mode Range
Input Resistance
Input Capacitance
Bias Current
Bias Current Over Temperature Range
Offset Current
Offset Current Over Temperature Range
DIGITAL
(Over Temperature Range)
V
IH
(Logic “1”)
V
IL
(Logic “0”)
I
IH
(V
I
= +5V)
I
IL
(V
I
= 0V)
Logic “0” = SAMPLE
Logic “1” = HOLD
OUTPUT CHARACTERISTICS
Voltage Range
Current
Output Impedance (Hold Mode)
Noise, DC to 10MHz: Sample Hold
Hold Mode
DC ACCURACY/STABILITY
Gain, Open Loop, DC
Input Offset Voltage
Input Offset Voltage Over Temperature Range
Input Offset Voltage Drift
CMRR
(1)
Power Supply Rejection
(2)
: +V
CC
–V
CC
HOLD-TO-SAMPLE MODE
DYNAMIC CHARACTERISTICS
Acquisition Time, A = –1, 10V Step
(3)
:
to
±0.01%
to
±0.1%
SAMPLE MODE
Gain-Bandwidth Product (Gain = +1)
(4)
:
C
H
= 100pF
C
H
= 1000pF
Full Power Bandwidth
(5)
Slew Rate
(6)
Rise Time
(4)
Overshoot
(4)
SAMPLE-TO-HOLD MODE
DYNAMIC CHARACTERISTICS
Aperture Time
(7)
Effective Aperture Time
Aperture Uncertainty (Aperture Jitter)
Charge Offset (Pedestal)
(8)
(Adjustable to Zero)
Charge Transfer
(8)
Sample-to-Hold Transient Settling Time
to
±0.01%
of FSR
HOLD MODE
Droop
(9)
Droop at Maximum Temperature
(9)
Drift Current
(9)
Drift Current at Maximum Temperature
(9)
Feedthrough, 10Vp-p, 100kHz Sinewave
MIN
TYP
MAX
MIN
SHC5320SH
TYP
MAX
UNITS
±10
±10
1
5
±100
±30
3
±300
±300
±300
±300
T
T
T
T
±70
T
T
±200
±200
±100
±100
V
V
MΩ
pF
nA
nA
nA
nA
V
V
µA
µA
2.0
0.8
0.1
4
T
T
T
T
±10
±10
1
125
125
3 x 10
5
2 x 10
6
±0.5
±5
90
200
200
T
T
T
T
T
10
6
±1.5
±20
80
T
T
T
±0.2
T
T
T
T
V
mA
Ω
µVrms
µVrms
V/V
mV
mV
µV/°C
dB
dB
dB
±2
±15
72
80
65
1
0.8
1.5
1.2
T
T
T
T
µs
µs
2
180
600
45
100
15
T
T
T
T
T
T
MHz
kHz
kHz
V/µs
ns
%
–50
25
–25
0.3
1
0.1
165
0.08
1.2
8
0.12
2
0
5
0.5
350
0.5
100
50
10
T
T
T
T
T
T
T
T
17
T
1.7
T
T
T
T
T
T
T
T
T
ns
ns
ns
mV
pC
ns
µV/µs
µV/µs
pA
nA
mV
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
SHC5320
2
SPECIFICATIONS (Cont.)
At +25°C, rated power supplies, gain = +1, and with internal holding capacitor, unless otherwise noted.
SHC5320KH, KP, KU
PARAMETERS
POWER SUPPLIES
+V
CC
–V
CC
+I
CC
(+V
CC
= 15V)
(9)
–I
CC
(–V
CC
= 15V)
(9)
TEMPERATURE
Specification
Storage
PACKAGE
T
Specification the same as SCH5320KH, KP, KU.
NOTES: (1) V
CM
=
±5VDC.
(2) Based on a
±0.5V
swing for each supply with all other supplies held constant. (3) V
O
= 10V step, R
L
= 2kΩ, C
L
= 50pF. (4) V
O
= 200mVp-p,
R
L
= 2kΩ, C
L
= 50pF. (5) V
IN
= 20Vp-p, R
L
= 2kΩ, C
L
= 50pF, unattenuated output. (6) V
O
= 20V step, R
L
= 2kΩ, C
L
= 50pF. (7) Simulated only, not tested. (8) V
IN
=
0V, V
IH
= +3.5V, t
R
< 20ns (V
IL
to V
IH
). (9) Specified for zero differential input voltage between pins 1 and 2. Supply current will increase with differential input (as may
Lead Temperature (soldering, 10s) ................................................. 300°C
CAUTION: These devices are sensitive to electrostatic discharge.
Appropriate I.C. handling procedures should be followed.
NOTES: (1) Absolute maximum ratings are limiting values, applied individually,
beyond which the serviceability of the circuit may be impaired. Functional
operation under any of these conditions is not necessarily implied. Absolute
maximum ratings apply to both dice and package parts, unless otherwise noted.
(2) Internal power dissipation may limit output current to less than +20mA. (3)
WARNING: This device cannot withstand even a momentary short circuit
to either supply.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
PACKAGE/ORDERING INFORMATION
PACKAGE
DRAWING
NUMBER
163
010
211
SPECIFIED
TEMPERATURE
RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
PACKAGE
MARKING
SHC5320KH
SHC5320KP
SHC5320KU
SHC5320KU
SHC5320SH
ORDERING
NUMBER
(1)
SHC5320KH
SHC5320KP
SHC5320KU
SHC5320KU/1K
SHC5320SH
TRANSPORT
MEDIA
Rail
Rail
Rail
Tape and Reel
Rail
PRODUCT
SHC5320KH
SHC5320KP
SHC5320KU
PACKAGE
CERDIP-14
DIP-14
SO-16
"
SHC5320SH
"
CERDIP-14
"
163
"
–55°C to +125°C
NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /1K indicates 1000 devices per reel). Ordering 1000 pieces
of “SHC5320KU/1K” will get a single 1000-piece Tape and Reel.
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