AWG G3 PAD FOR PS3 Specifikace stáhnout pdf (Strana 141)

General Purpose Power Supply (GPDPS) 6 Device PowerSupply

System Reference, January 2001

141

Setting up Performance Ranges

To fully exploit the benefits of the GPDPS design, which

includes highest measurement accuracy for IDDQ current

measurements and excellent regulation of current varia-

tions, performance ranges for the Agilent 93000 SOC

Series General Purpose Device Power Supply have been

introduced.

The subsequent sections explain the new concept in detail

and lead you through the required setup steps.

What is a Performance Range?

The General Purpose Device Power Supply can be oper-

ated in four different performance ranges. Each perfor-

mance range sets a different internal amplification of the

GPDPS control loop. The performance range can be set

independently for each GPDPS channel.

Figure 59 GPDPS Channel: Simplified Block Diagram

Figure 59 shows the simplified block diagram of a GPDPS

channel. The control loop ensures that the actual

programmed DPS voltage is applied to the DUT. Within the

control logic, the open loop gain of the control loop can be

changed by setting the appropriate performance range.

Control

Logic

(including

performance

range switch)

Current

Voltage

DUT

Force

Sense Amplifier

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AWG G3 PAD FOR PS3 Specifikace Strana 141