S-89713B Datasheet, PDF(10/23 Page) Seiko Instruments Inc – MINI ANALOG SERIES LOW INPUT OFFSET VOLTAGE CMOS OPERATIONAL AMPLIFIER

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S-89713B Datasheet, PDF (10/23 Pages) Seiko Instruments Inc – MINI ANALOG SERIES LOW INPUT OFFSET VOLTAGE CMOS OPERATIONAL AMPLIFIER

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MINI ANALOG SERIES LOW INPUT OFFSET VOLTAGE CMOS OPERATIONAL AMPLIFIER

S-89713B Series

Rev.1.0_00

8. Voltage gain (open loop)

VDD

D.U.T

VCMR = VDD / 2

VDD / 2

VDDN

NULL

VSSN

VOUT

Figure 12

â¢ Voltage-gain (open loop) (AVOL)

The voltage gain (AVOL) can be calculated by the following expression, with measured VOUT at each VM.

Test conditions:

When VM = VDD â 0.1 V: VM = VM1, VOUT = VOUT1,

When VM = 0.1 V: VM = VM2, VOUT = VOUT2

ï£ï£¬ï£« AVOL = 20 log

VM1 â VM2

VOUT1 â VOUT2

RL = 10 kâ¦

Ã RFR+SRSï£¸ï£·ï£¶

9. Slew rate (SR)

Measured by the voltage follower circuit.

VIN(+)

VDD

VSS

( = 0 V)

tR = tF = 20 ns (VSS to VDD)

tTHL

VOUT

(= VIN(ï¼))

tTLH

Figure 13

VDDÃ0.9

VDDÃ0.1

At fall

SR = VDD Ã 0.8

t THL

At rise

SR = VDD Ã 0.8

t TLH

Seiko Instruments Inc.

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