HA-5320

1 Microsecond Precision Sample and Hold Amplifier

Product Status: Mass Production

OVERVIEW

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 latchfree operation. For further information, please see Application Note AN538.

KEY FEATURES

  • Gain, DC: 2 x 106 V/V
  • Acquisition Time: 1.0µs (0.01%)
  • Droop Rate: 0.08µV/µs (+25°C) 17µV/µs (Full Temperature)
  • Aperture Time: 25ns
  • Hold Step Error (See Glossary): 5mV
  • Internal Hold Capacitor
  • Fully Differential Input
  • TTL Compatible
  • Pb-Free Available (RoHS Compliant)

BLOCK DIAGRAM

 Block Diagram

PARAMETRICS

Parameters
HA-5320
Basic Information
生产状态
Mass Production
带宽 (MHz)
2
压摆率 (V/μs)
45
IBIAS
70 nA
IS (每放大器)
11 mA
AVOL (dB)
126
VOS
0.2 mV
请求外部保持电容器
Yes
tACQ
1000 ns
下降率
0.08 μV/μs
保持跳变误差
5 mV
资质级别
Standard
温度范围
-55 to +125

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