Datasheet > EK34

EK34

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
APEX		/
页数	文件大小	规格书
2页	201K
描述
EVALUATION KIT FOR PA240CX

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数据手册

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EK34 数据手册

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INTRODUCTION

TYPICAL COMPONENT FUNCTIONS

Fast, easy breadboarding of circuits using the PA240CX are

possible with the EK34 PC board. Mounting holes are provided

and the provision for standard banana jacks simpliﬁes connec-

tion and testing. The ampliﬁer may be mounted horizontally or

vertically. Components are labeled on both sides of the board

for ease in probing.

COMPONENT

FUNCTION

C1,7

Alone is a roll off, with R3, 13 is a current out stability

network (ref. AN19)

C2,6

With R6, 15 forms noise gain compensation network

(ref. AN25)

C3,4

C5,8

Supply bypass, .22 to 1µF ceramic

With R9, 20 forms a Howland stability network, can

jumper both to ground +IN

A multitude of circuit conﬁgurations are possible, so only sev-

eralcomponentlocationshavespeciﬁcfunctionsandwillusually

be necessary. This kit is not suitable for use with PA240CC.

Sets compensation to match desired gain

Normally not used.

PARTS LIST

D1-4

Flyback protection diodes

R1,11 Inverting inputs, install to input line or to ground

R2,12 Negative feedback, install to V for voltage out or to I

for current output (ref. AN19)

R3,13 With C1, 7 forms a stability network for current output

(ref. AN19)

R4,14 Current sense for current outputs (ref. AN13)

R5,15 With C2, 6 forms noise gain compensation network

(ref. AN25)

Part #

Eval 34

Clamp04

MS11

TW14

HS29

Description

Evaluation Board PA40/140CX

Clamp for HS29

Pin Receptacle, 30 pin strip

Thermal Washer TO220 10/Pack

Heat Sink, 2.7 DEG/W

Quantity

EQUIVALENT SCHEMATIC

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R6,17 Input R for Howland current

pump or differential, usually

shorted for non-inverting

R7,19 Current sense for Howland

current pump. Could also be

used to isolate large Cloads

(ref. AN25)

R8,21 Positive feedback, install to H

for a Howland current pump, to

D for a differential circuit

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R9,20 With C5, 8 forms a Howland

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both to ground +IN

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R10

With an equal value R12 pro-

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(ref. AN3,20)

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R18,19 Can provide mid-supply refer-

ence for single supply bridge

(ref. AN3, 20)

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Normally shorted.

Normally not used.

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APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com

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