HA-5320 Datasheet, PDF (1/7 Pages) Intersil Corporation – 1 Microsecond Precision Sample and Hold Amplifier

Data Sheet
HA-5320
April 1999 File Number 2857.4
1 Microsecond Precision Sample and
Hold Amplifier
The HA-5320 was designed for use in precision, high speed
data acquisition systems.
The circuit consists of an input transconductance amplifier
capable of providing large amounts of charging current, a low
leakage analog switch, and an output integrating amplifier. The
analog switch sees virtual ground as its load; therefore, charge
injection on the hold capacitor is constant over the entire
input/output voltage range. The pedestal voltage resulting from
this charge injection can be adjusted to zero by use of the offset
adjust inputs. The device includes a hold capacitor. However, if
improved droop rate is required at the expense of acquisition
time, additional hold capacitance may be added externally.
This monolithic device is manufactured using the Intersil
Dielectric Isolation Process, minimizing stray capacitance
and eliminating SCRs. This allows higher speed and latch-
free operation. For further information, please see
Application Note AN538.
Pinouts
HA-5320
(PDIP, CERDIP)
TOP VIEW
-INPUT 1
+INPUT 2
OFFSET ADJUST 3
OFFSET ADJUST 4
V- 5
SIG. GND 6
OUTPUT 7
14 S/H CONTROL
13 SUPPLY GND
12 NC
11 _CEXT
10 NC
9 V+
8
INTEGRATOR
BANDWIDTH
HA-5320
(SOIC)
TOP VIEW
-INPUT 1
+INPUT 2
OFFSET ADJUST 3
OFFSET ADJUST 4
V- 5
SIG. GND 6
OUTPUT 7
NC 8
16 S/H CONTROL
15 SUPPLY GND
14 NC
13 C_EXT
12 NC
11 V+
10
INTEGRATOR
BANDWIDTH
9 NC
Features
• Gain, DC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 x 10⁶ V/V
• Acquisition Time . . . . . . . . . . . . . . . . . . . . . 1.0µs (0.01%)
• Droop Rate . . . . . . . . . . . . . . . . . . . . . . 0.08µV/µs (25^oC)
17µV/µs (Full Temperature)
• Aperture Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25ns
• Hold Step Error (See Glossary) . . . . . . . . . . . . . . . . . 5mV
• Internal Hold Capacitor
• Fully Differential Input
• TTL Compatible
Applications
• Precision Data Acquisition Systems
• Digital to Analog Converter Deglitcher
• Auto Zero Circuits
• Peak Detector
Ordering Information
PART NUMBER
HA1-5320-2
HA1-5320-5
HA3-5320-5
HA9P5320-5
HA9P5320-9
TEMP.
RANGE (^oC)
PACKAGE
-55 to 25 14 Ld CERDIP
0 to 75 14 Ld CERDIP
0 to 75 14 Ld PDIP
0 to 75 16 Ld SOIC
-40 to 85 16 Ld SOIC
Functional Diagram
OFFSET
ADJUST
V+
34
9
PKG.
NO.
F14.3
F14.3
E14.3
M16.3
M16.3
-INPUT 1
+INPUT 2
HA-5320
100pF
-
+
7 OUTPUT
S/H
CONTROL
14
13
SUPPLY
GND
5
6
8
INTEGRATOR
BANDWIDTH
V-
SIG.
GND
11 C_EXT
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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