Intersil Corporation HS-2420RH Datasheet

July 1995

HS-2420RH

Radiation Hardened

Fast Sample and Hold

Features

• Maximum Acquisition Time

- 10V Step to 0.1%. . . . . . . . . . . . . . . . . . . . . . . . . . . 4µs

- 10V Step to 0.01%. . . . . . . . . . . . . . . . . . . . . . . . . . 6µs

• Maximum Drift Current . . . . . . . . . . . . . . . . . . . . . .10nA

(Maximum Over Temperature)

• TTL Compatible Control Input

• Power Supply Rejection . . . . . . . . . . . . . . . . . . . . . .≥80dB

5

• Total Gamma Dose. . . . . . . . . . . . . . . . .1 x 10

RAD(SI)

• No Latch-Up

Applications

• Data Acquisition Systems

• D to A Deglitcher

• Auto Zero Systems

• Peak Detector

• Gated Op Amp

Ordering Information

Description

The HS-2420RH is a radiation hardened monolithic circuit
consisting of a high performance operational amplifier with
its output in series with an ultra-low leakage analog switch
and MOSFET input unity gain amplifier.

With an external hold capacitor connected to the switch output,
a versatile, high performance sample-and-hold or track-and­hold circuit is formed. When the switch is closed, the device
behaves as an operation 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.

TEMPERATURE

PART NUMBER

HS1-2420RH-Q -55oC to +125oC 14 Lead CerDIP

Pinout

OFFSET ADJUST
OFFSET ADJUST

14 LEAD CERAMIC DUAL-IN-LINE

FRIT SEAL PACKAGE (CerDIP)

MIL-STD-1835, GDIP1-T14

IN-

IN+

V-

NC

OUTPUT

RANGE PACKAGE

TOP VIEW

1
2
3
4
5
6
7

14 Pin DIP

SAMPLE/HOLD

14

CONTROL

13

GND

12

NC

11

HOLD CAPACITOR

10

NC

9

V+

8

NC

Functional Diagram

OFFSET
ADJUST

34 5

HOLD

1

2

14

-

+

V-GND

- INPUT

+ INPUT

SAMPLE/

CONTROL

NOTE: Pin Numbers Correspond to DIP Package Only.

V+

513

11

HOLD

CAPACITOR

-

+

HS-2420RH

7

OUTPUT

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com

| Copyright © Intersil Corporation 1999

1

Spec Number 518855

File Number 3554.1

Specifications HS-2420RH

Absolute Maximum Ratings Reliability Information

Voltage Between V+ and V- Terminals. . . . . . . . . . . . . . . . . . . +40V

Differential Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±24V

Digital Input Voltage (S/H Pin) . . . . . . . . . . . . . . . . . . . . . .+8V, -15V

Output Current . . . . . . . . . . . . . . . . . . . . . . . Short Circuit Protected

Storage Temperature Range . . . . . . . . . . . . . .-65oC < TA < +150oC

Lead Temperature (Soldering 10s). . . . . . . . . . . . . . . . . . . . +275oC

Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC

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.

Recommended Operating Conditions

Operating Temperature Range. . . . . . . . . . . . .-55oC < TA < +125oC

Operating Supply Voltage (±VSUPPLY) . . . . . . . . . . . . . . . . . . . ±15V

Analog Input Voltage (VS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±10V

TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS

Device T ested at V+ = +15V, V - = -15V, VIL = 0.8V (Sample); VIH = 2.0V (Hold); CH = 1000pF, -Input Tied to Output, Unless Otherwise Specified

PARAMETER SYMBOL CONDITIONS

Input Offset Voltage VIO 1 +25oC-44mV

Input Bias Current IB+ 1 +25oC -200 200 nA

IB- 1 +25oC -200 200 nA

Input Offset Current IIO 1 +25oC -50 50 nA

Open Loop Voltage Gain +AVS RL = 2kΩ, CL = 50pF,

VOUT = +10V

-AVS RL = 2kΩ, CL = 50pF,
VOUT = -10V

Common Mode
Rejection Ratio

Output Current +IO VOUT = +10V 1 +25oC +15.0 - mA

Output Voltage Swing +VOP RL = 2kΩ, CL = 50pF 1 +25oC +10.0 - V

Power Supply Current +ICC 1 +25oC - 5.5 mA

Power Supply Rejection
Ratio

-CMRR V+ = 25V, V- = -5V,
VOUT = +10V, VS/H = 10.8V

+CMRR V+ = 5V, V- = -25V,

VOUT = -10V, VS/H = 9.2V

-IO VOUT = -10V 1 +25oC -15.0 - mA

-VOP RL = 2kΩ, CL = 50pF 1 +25oC - -10.0 V

-ICC 1 +25oC -3.5 - mA

+PSRR V+ = 10V and 20V,

V- = -15V and -15V

-PSRR V+ = 15V and 15V,
V- = -10V and -20V

Thermal Resistance θ

CerDIP Package . . . . . . . . . . . . . . . . . . . 74oC/W 18oC/W

Maximum Power Dissipation at +125oC

CerDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.68W

If Device Power Exceeds Package Dissipation Capability, Derate
Linearly at the Following Rate

CerDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13.5mW/oC

ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ≤2000V

Logic Level Low (VIL) . . . . . . . . . . . . . . . . . . . . . . . . . . . .0V to 0.8V

Logic Level High (VIH) . . . . . . . . . . . . . . . . . . . . . . . . . 2.0V to 5.0V

GROUP A

SUBGROUPS TEMPERATURE

2, 3 -55oC, +125oC-6 6 mV

2, 3 -55oC, +125oC -400 400 nA

2, 3 -55oC, +125oC -400 400 nA

2, 3 -55oC, +125oC -100 100 nA

1 +25oC 25 - kV/V

2, 3 -55oC, +125oC 25 - kV/V

1 +25oC 25 - kV/V

2, 3 -55oC, +125oC 25 - kV/V

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

2, 3 -55oC, +125oC -10.0 - V

2, 3 -55oC, +125oC - -10.0 V

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

JA

LIMITS

θ

JC

UNITSMIN MAX

Spec Number 518855

2

Specifications HS-2420RH

TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS (Continued)

Device T ested at V+ = +15V, V- = -15V , VIL = 0.8V (Sample); VIH = 2.0V (Hold); CH = 1000pF, -Input Tied to Output, Unless Otherwise Specified

GROUP A

PARAMETER SYMBOL CONDITIONS

Digital Input Current IIN1 VIN1 = 0V 1 +25oC - 800 µA

IIN2 VIN2 = 5.0V 1 +25oC-20µA

Digital Input Voltage VIL 1 +25oC - 0.8 V

VIH 1 +25oC 2.0 - V

Drift Current ID VIN = 0V, RL = 2kΩ, CL = 50pF,

S/H = 4.0V

TABLE 2. AC ELECTRICAL PERFORMANCE CHARACTERISTICS

Device Tested at V+ = +15V, V- = -15V, VIL = 0.8V (Sample), VIH = 2.0V (Hold), CH = 1000pF , -Input Tied to Output, Unless Otherwise Specified

PARAMETER SYMBOL CONDITIONS

Hold Step Error VERROR VS/H = 0V and 4V,

tRISE (VS/H) ≈30ns (Note 1)

Transient Response
Rise Time and Fall Time

Transient Response
Overshoot

Transient Response
Slew Rate

NOTE:

1. VERROR = VOUT (VS/H = 0V) - VOUT (VS/H = 4V)

TR(TR) CL = 50pF, RL = 2kΩ, AV = +1,
TR(TF) 9 +25oC - 100 ns

TR(+OS) CL = 50pF, RL = 2kΩ, AV = +1,

TR(-OS) 9 +25oC - 40 %

TR(+SR) CL = 50pF, RL = 2kΩ, AV = +1,

TR(-SR) 9 +25oC 3.5 - V/µs

VOUT = 200mVP-P

VOUT = 200mVP-P

VOUT = 10VP-P

SUBGROUPS TEMPERATURE

2, 3 -55oC, +125oC - 800 µA

2, 3 -55oC, +125oC-20µA

2, 3 -55oC, +125oC - 0.8 V

2, 3 -55oC, +125oC 2.0 - V

2 +125oC -10 10 nA

GROUP A

SUBGROUP TEMPERATURE

9 +25oC -20 20 mV

9 +25oC - 100 ns

9 +25oC - 40 %

9 +25oC 3.5 - V/µs

LIMITS

UNITSMIN MAX

LIMITS

UNITSMIN MAX

TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS

Device Tested at V+ = +15V, V- = -15V, VIL = 0.8V (Sample), VIH = 2.0V (Hold), CH = 1000pF , -Input Tied to Output, Unless Otherwise Specified

LIMITS

PARAMETER SYMBOL CONDITIONS NOTE TEMPERATURE

Hold Mode Feedthrough
Attenuation

Gain Bandwidth Product GBWP RL = 2kΩ, CL = 50pF, AV = +1,

Acquisition Time (0.1%) +tACQ (0.1%) RL = 2kΩ, CL = 50pF, AV = +1,

Acquisition Time (0.01%) +tACQ (0.01%) RL = 2kΩ, CL = 50pF, AV = +1,

NOTE: 1. Parameters listed in Table 3 are controlled via design or process parameters and are not directly tested at final production. These

parameters are characterized upon initial design release and upon design changes which would affect these characteristics.

VATTEN RL = 2kΩ, CL = 50pF, AV = +1,

VIN = 20VP-P, fIN = 50kHz

VIN = 100mVP-P

VOUT = 0V and +10V

-tACQ (0.1%) RL = 2kΩ, CL = 50pF, AV = +1,
VOUT = 0V and -10V

VOUT = 0V and +10V

-tACQ (0.01%) RL = 2kΩ, CL = 50pF, AV = +1,
VOUT = 0V and -10V

1 +25oC, -55oC,

+125oC

1 +25oC 2.5 - MHz

1 +25oC-4µs

1 +25oC-4µs

1 +25oC-6µs

1 +25oC-6µs

70 - dB

UNITSMIN MAX

Spec Number 518855

3

Specifications HS-2420RH

TABLE 4. DC ELECTRICAL PERFORMANCE CHARACTERISTICS POST 100KRAD

Device T ested at V+ = +15V, V- = -15V , VIL = 0.8V (Sample); VIH = 2.0V (Hold); CH = 1000pF, -Input Tied to Output, Unless Otherwise Specified

GROUP A

PARAMETER SYMBOL CONDITIONS

Input Offset Voltage VIO 1 +25oC-66mV
Input Bias Current IB+ 1 +25oC -400 400 nA

IB- 1 +25oC -400 400 nA
Input Offset Current IIO 1 +25oC -100 100 nA
Open Loop Voltage Gain +AVS RL = 2kΩ, CL = 50pF,

VOUT = +10V

-AVS RL = 2kΩ, CL = 50pF,
VOUT = -10V

Common Mode
Rejection Ratio

Output Current +IO VOUT = +10V 1 +25oC +12.0 - mA

Output Voltage Swing +VOP RL = 2kΩ, CL = 50pF 1 +25oC +10.0 - V

Power Supply Current +ICC 1 +25oC - 5.5 mA

Power Supply Rejection
Ratio

Digital Input Current IIN1 VIN1 = 0V 1 +25oC - 800 µA

Digital Input Voltage VIL 1 +25oC - 0.8 V

Drift Current ID VIN = 0V, RL = 2kΩ, CL = 50pF,

-CMRR V+ = 25V, V- = -5V,
VOUT = +10V, VS/H = 10.8V

+CMRR V+ = 5V, V- = -25V,

VOUT = -10V, VS/H = 9.2V

-IO VOUT = -10V 1 +25oC -12.0 - mA

-VOP RL = 2kΩ, CL = 50pF 1 +25oC - -10.0 V

-ICC 1 +25oC -3.5 - mA

+PSRR V+ = 10V and 20V,

V- = -15V and -15V

-PSRR V+ = 15V and 15V,
V- = -10V and -20V

IIN2 VIN2 = 5.0V 1 +25oC-20µA

VIH 1 +25oC 2.0 - V

S/H = 4.0V

SUBGROUPS TEMPERATURE

1 +25oC 25 - kV/V

2, 3 -55oC, +125oC 25 - kV/V

1 +25oC 25 - kV/V

2, 3 -55oC, +125oC 25 - kV/V

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

2, 3 -55oC, +125oC +10.0 - V

2, 3 -55oC, +125oC - -10.0 V

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

1 +25oC80-dB

2, 3 -55oC, +125oC80 - dB

2, 3 -55oC, +125oC - 800 µA

2, 3 -55oC, +125oC-20µA

2, 3 -55oC, +125oC - 0.8 V

2, 3 -55oC, +125oC 2.0 - V

2 +125oC -10 10 nA

LIMITS

UNITSMIN MAX

Spec Number 518855

4