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KH220AK, KH220AM, KH231

Table of contents:
Info of KH220AK
Info of KH220AM
Info of KH231

KH220AK, KH220AM, KH231 Selling Leads, Datasheet

MFG:Fairchild Package Cooled:N/A D/C:09+

KH220AK, KH220AM, KH231 Datasheet download

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Part Number: KH220AK

MFG: Fairchild

Package Cooled: N/A

D/C: 09+

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KH231 General Description

The KH231 Buffer/Amplifier is a wideband operational amplifier designed specifically for high-speed, lowgain applications. The KH231 is based on a current feedback op amp topology-a unique design that both eliminates the gain-bandwidth tradeoff and permits unprecedented high-speed performance. (See table below.)

The KH231 Buffer/Amplifier is the ideal design alternative to low precision open-loop buffers and oscillationprone conventional op amps. The KH231 offers precise gains from ±1.000 to ±-5.000 and linearity that is a true 0.1%-even for demanding 50 loads. Open-loop buffers, on the other hand, offer a nominal gain of 0.95 ±0.03 and a linearity of only 3% for typical loads.

A buffer's settling time may look impressive but it is usually specified at unrealistically large load resistance sor when the effects of thermal tail are not included; the KH231 Buffer/Amplifier settles to 0.05% in 15ns-while driving a 100 load.

Offsets and drifts, usually a low priority in conventional high-speed op amp designs, were not ignored in the KH231; the input offset voltage is typically 1mV and input offset voltage drift is only 10V/°C. The KH231 is stable and oscillation-free across the entire gain range and since it's internally compensated, the user is saved the trouble of designing external compensation networks and having to "tweak" them in production. The absence of a gain-bandwidth tradeoff in the KH231 allows performance to be predicted easily; the table below shows how the bandwidth is affected very little by changing the gain setting.

The KH231 is constructed using thin film resistor/bipolar transistor technology, and is available in the following versions:

The KH231 is constructed using thin film resistor/bipolar transistor technology, and available in these versions:
KH231AI ...-25 to +85 ....12-pin TO-8 can
KH231AK ... -55 to +125 ...12-pin TO-8 can, features burn-in & hermetic testing
KH231AM ... -55 to +125 ...12-pin TO-8 can, environmentally screened and
.....................electrically tested to MIL-STD-883
KH231HXC ... -55 to +125 ...SMD#: 5962-8959401HXC
KH231HXA ...-55 to +125 ...SMD#: 5962-8959401HXA

KH231 Maximum Ratings

VCC.................. ±20V VCC ±5V to ±15V
Io ...................±100mA Io ±75mA
common mode input voltage, Vo ...(see Vcm and Vo common mode input voltage ±(|VCC| -5)V limits plot on page 3)
differential input voltage........±3V
thermal resistance ...........(see thermal model)
junction temperature.......... +175°C
operating temperature .........AI: -25°C to +85°C
.....................AK/AM: -55°C to +125°C
storage temperature ..........-65°C to +150°C
lead temperature (soldering 10s) ....+300°C

KH231 Features

`165MHz closed-loop -3dB bandwidth
`15ns settling to 0.05%
`1mV input offset voltage, 10V/°C drift
`100mA output current
`Excellent AC and DC linearity
`Direct replacement for CLC231

KH231 Typical Application

·Driving flash A/D converters
·Precision line driving (a gain of 2 cancels matched-line losses)
·DAC current-to-voltage conversion
·Low-power, high-speed applications (50mW @ ±5V)

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