Freelance Electronics Components Distributor
Question?
800-300-1968
We Stock Hard to Find Parts

A1-2420-2

Part # A1-2420-2
Description
Category IC
Availability In Stock
Qty 1
Qty Price
1 + $3.56000
Manufacturer Available Qty
Harris Corporation
Date Code: 8941
  • Shipping Freelance Stock: 1
    Ships Immediately



Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

1
®
FN2856.6
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003, 2004. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
HA-2420, HA-2425
3.2
µ
s Sample and Hold Amplifiers
The HA-2420 and HA-2425 is a monolithic circuit consisting
of a high performance operational amplifier with its output in
series with an ultra-low leakage analog switch and JFET
input unity gain amplifier.
With an external hold capacitor connected to the switch
output, a versatile, high performance sample-and-hold or
track-and-hold circuit is formed. When the switch is closed,
the device behaves as an operational amplifier, and any of
the standard op amp feedback networks may be connected
around the device to control gain, frequency response, etc.
When the switch is opened the output will remain at its last
level.
Performance as a sample-and-hold compares very favorably
with other monolithic, hybrid, modular, and discrete circuits.
Accuracy to better than 0.01% is achievable over the
temperature range. Fast acquisition is coupled with superior
droop characteristics, even at high temperatures. High slew
rate, wide bandwidth, and low acquisition time produce
excellent dynamic characteristics. The ability to operate at
gains greater than 1 frequently eliminates the need for
external scaling amplifiers.
The device may also be used as a versatile operational
amplifier with a gated output for applications such as analog
switches, peak holding circuits, etc. For more information,
please see Application Note AN517..
Features
Maximum Acquisition Time
- 10V Step to 0.1% . . . . . . . . . . . . . . . . . . . . . 4µs (Max)
- 10V Step to 0.01% . . . . . . . . . . . . . . . . . . . . 6µs (Max)
Low Droop Rate (C
H
= 1000pF). . . . . . . . . . 5µV/ms (Typ)
Gain Bandwidth Product . . . . . . . . . . . . . . . 2.5MHz (Typ)
Low Effective Aperture Delay Time . . . . . . . . . 30ns (Typ)
TTL Compatible Control Input
±12V to ±15V Operation
Applications
12-Bit Data Acquisition
Digital to Analog Deglitcher
Auto Zero Systems
Peak Detector
Gated Operational Amplifier
Pinout
Ordering Information
PART NUMBER
TEMP.
RANGE (
o
C) PACKAGE
PKG.
DWG. #
HA1-2420-2 -55 to 125 14 Ld CERDIP F14.3
HA3-2425-5 0 to 75 14 Ld PDIP E14.3
HA-2420 (CERDIP)
HA-2425 (PDIP)
TOP VIEW
-IN
+IN
OFFSET ADJ.
OFFSET ADJ.
V-
NC
OUTPUT
S
/H CONTROL
GND
NC
HOLD CAP.
NC
V+
NC
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Data Sheet November 19, 2004
2
FN2856.6
November 19, 2004
Absolute Maximum Ratings Thermal Information
Voltage Between V+ and V- Terminals. . . . . . . . . . . . . . . . . . . . .40V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24V
Digital Input Voltage (Sample and Hold Pin) . . . . . . . . . . +8V, -15V
Output Current . . . . . . . . . . . . . . . . . . . . . . . .Short Circuit Protected
Operating Conditions
Temperature Range
HA-2420-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to 125
o
C
HA-2425-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0
o
C to 75
o
C
Supply Voltage Range (Typical). . . . . . . . . . . . . . . . . ±12V to ±15V
Thermal Resistance (Typical, Note 1) θ
JA
(
o
C/W) θ
JC
(
o
C/W)
CERDIP Package. . . . . . . . . . . . . . . . . 75 20
PDIP Package . . . . . . . . . . . . . . . . . . . 95 N/A
Maximum Junction Temperature (Ceramic Packages). . . . . . . .175
o
C
Maximum Junction Temperature (Plastic Package) . . . . . . . .150
o
C
Maximum Storage Temperature Range. . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300
o
C
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θ
JA
is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications Test Conditions (Unless Otherwise Specified) V
SUPPLY
= ±15.0V; C
H
= 1000pF; Digital Input: V
IL
=+0.8V
(Sample), V
IH
= +2.0V (Hold), Unity Gain Configuration (Output tied to Negative Input)
PARAMETER
TEST
CONDITIONS
TEMP.
(
o
C)
HA-2420-2 HA-2425-5
UNITSMIN TYP MAX MIN TYP MAX
INPUT CHARACTERISTICS
Input Voltage Range Full ±10 - - ±10 - - V
Offset Voltage 25 - 2 4 - 3 6 mV
Full - 3 6 - 4 8 mV
Bias Current 25 - 40 200 - 40 200 nA
Full - - 400 - - 400 nA
Offset Current 25 - 10 50 - 10 50 nA
Full - - 100 - - 100 nA
Input Resistance 25 5 10 - 5 10 - M
Common Mode Range Full ±10 - - ±10 - - V
TRANSFER CHARACTERISTICS
Large Signal Voltage Gain R
L
= 2k, V
O
= 20V
P-P
Full 25 50 - 25 50 - kV/V
Common Mode Rejection V
CM
= ±10V Full 80 90 - 74 90 - dB
Hold Mode Feedthrough Attenuation
(Note 2)
f
IN
100kHz Full - -76 - - -76 - dB
Gain Bandwidth Product (Note 2) 25 - 2.5 - - 2.5 - MHz
OUTPUT CHARACTERISTICS
Output Voltage Swing R
L
= 2k Full ±10 - - ±10 - - V
Output Current 25 ±15 - - ±15 - - mA
Full Power Bandwidth (Note 2) V
O
= 20V
P-P
25 - 100 - - 100 - kHz
Output Resistance DC 25 - 0.15 - - 0.15 -
TRANSIENT RESPONSE
Rise Time (Note 2) V
O
= 200mV
P-P
25 - 75 100 - 75 100 ns
Overshoot (Note 2) V
O
= 200mV
P-P
25 - 25 40 - 25 40 %
Slew Rate (Note 2) V
O
= 10V
P-P
25 3.5 5 - 3.5 5 - V/µs
HA-2420, HA-2425
3
FN2856.6
November 19, 2004
DIGITAL INPUT CHARACTERISTICS
Digital Input Current V
IN
= 0V Full - - -0.8 - - -0.8 mA
V
IN
= 5V Full - - 20 - - 20 µA
Digital Input Voltage Low Full - - 0.8 - - 0.8 V
High Full 2.0 - - 2.0 - - V
SAMPLE AND HOLD CHARACTERISTICS
Acquisition Time (Note 2) To 0.1% 10V Step 25 - 2.3 4 - 2.3 4 µs
Acquisition Time (Note 2) To 0.01% 10V Step 25 - 3.2 6 - 3.2 6 µs
Hold Step Error V
IN
= 0V 25 - 10 20 - 10 20 mV
Hold Mode Settling Time To ±1mV 25 - 860 - - 860 - ns
Aperture Time (Note 3) 25 - 30 - - 30 - ns
Effective Aperture Delay Time 25 - 30 - - 30 - ns
Aperture Uncertainty 25 - 5 - - 5 - ns
Drift Current (Note 2) V
IN
= 0V 25 - 5 - - 5 - pA
HA1-2420 Full - 1.8 10 - - - nA
HA1-2425 Full - - - - 0.1 1.0 nA
HA3-2425, HA4P2425,
HA9P2425
Full - - - - 7.5 10.0 nA
POWER SUPPLY CHARACTERISTICS
Supply Current (+) 25 - 3.5 5.5 - 3.5 5.5 mA
Supply Current (-) 25 - 2.5 3.5 - 2.5 3.5 mA
Power Supply Rejection Full 80 90 - 74 90 - dB
NOTES:
2. A
V
= ±1, R
L
= 2k, C
L
= 50pF.
3. Derived from computer simulation only; not tested.
Functional Diagram
Electrical Specifications Test Conditions (Unless Otherwise Specified) V
SUPPLY
= ±15.0V; C
H
= 1000pF; Digital Input: V
IL
=+0.8V
(Sample), V
IH
= +2.0V (Hold), Unity Gain Configuration (Output tied to Negative Input) (Continued)
PARAMETER
TEST
CONDITIONS
TEMP.
(
o
C)
HA-2420-2 HA-2425-5
UNITSMIN TYP MAX MIN TYP MAX
43
OFFSET
ADJUST
V+
9
13 5
14
2
1
CONTROL
S
/H
+INPUT
-INPUT
GND V-
HA-2420/2425
7
OUT
11
HOLD
CAPACITOR
+
-
+
-
HA-2420, HA-2425
1234NEXT