OPA379AID datasheet(11/29 Pages) TI

Part #	OPA379AID

Description	1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O PERATIONAL AMPLIFIERS

Download	29 Pages

Scroll/Zoom	100%

Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

Logo

11 / 29 page

WINDOW COMPARATOR

V =

H

R

2

R +R

1

2

´ VS

(5)

V =

L

R

4

R +R

3

4

´ VS

(6)

V

S

A1

A2

D1

(2)

D2

(2)

R

5

10kW

R

6

5.1kW

R

7

5.1kW

R

2kW

(1)

IN

V

S

V

S

Q1

(3)

R

1

V

H

V

L

R

2

1/2

OPA2379

1/2

OPA2379

V

S

V

OUT

V

IN

V

S

R

3

R

4

OPA379

OPA2379

OPA4379

www.ti.com ................................................................................................................................................... SBOS347D – NOVEMBER 2005 – REVISED MAY 2008

The window comparator threshold voltages are set as

follows:

Figure 24 shows the OPA2379 used as a window

comparator. The threshold limits are set by VH and

VL, with VH > VL. When VIN < VH, the output of A1 is

low. When VIN > VL, the output of A2 is low.

Therefore, both op amp outputs are at 0V as long as

VIN is between VH and VL. This architecture results in

no current flowing through either diode, Q1 in cutoff,

with the base voltage at 0V, and VOUT forced high.

If VIN falls below VL, the output of A2 is high, current

flows through D2, and VOUT is low. Likewise, if VIN

rises above VH, the output of A1 is high, current flows

through D1, and VOUT is low.

(1) RIN protects A1 and A2 from possible excess current flow.

(2) IN4446 or equivalent diodes.

(3) 2N2222 or equivalent NPN transistor.

Figure 24. OPA2379 as a Window Comparator

Submit Documentation Feedback

11

Product Folder Link(s): OPA379 OPA2379 OPA4379

Similar Part No. - OPA379AID

Manufacturer	Part #	Datasheet	Description
Burr-Brown (TI)	OPA379AID	237Kb / 12P	1.8V, 2.9uA, 90kHz, Rail-to-Rail I/O OPERATIONAL AMPLIFIERS
Texas Instruments	OPA379AID	1Mb / 29P	[Old version datasheet] 1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O RATIONAL AMPLIFIERS
	OPA379AID	1Mb / 29P	[Old version datasheet] 18V 29mA90kHz, Rail-to-Rail I/O ATIONAL AMPLIFIERS
	OPA379AIDBV	1Mb / 29P	[Old version datasheet] 1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O RATIONAL AMPLIFIERS
	OPA379AIDBVR	1Mb / 29P	[Old version datasheet] 1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O RATIONAL AMPLIFIERS

More results

Similar Description - OPA379AID

Manufacturer	Part #	Datasheet	Description
Texas Instruments	OPA379AIDBV	1Mb / 29P	[Old version datasheet] 1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O RATIONAL AMPLIFIERS
Texas Instruments	OPA379AIDBVR	1Mb / 29P	[Old version datasheet] 1.8V, 2.9mA, 90kHz, Rail-to-Rail I/O OPERATIONAL AMPLIFIERS
Burr-Brown (TI)	OPA379	237Kb / 12P	1.8V, 2.9uA, 90kHz, Rail-to-Rail I/O OPERATIONAL AMPLIFIERS
SG Micro Corp	SGM8049-1	716Kb / 19P	Rail-to-Rail I/O Operational Amplifiers
	SGM8624	525Kb / 19P	Rail-to-Rail I/O CMOS Operational Amplifiers
	SGM8631	537Kb / 20P	Rail-to-Rail I/O CMOS Operational Amplifiers
Burr-Brown (TI)	OPA703	509Kb / 18P	CMOS, Rail-to-Rail, I/O OPERATIONAL AMPLIFIERS
Texas Instruments	OPA2703EA-2K5G4	894Kb / 19P	[Old version datasheet] CMOS, Rail-to-Rail, I/O OPERATIONAL AMPLIFIERS
SG Micro Corp	SGM8634	537Kb / 20P	Rail-to-Rail I/O CMOS Operational Amplifiers
SG Micro Corp	SGM8621	1Mb / 20P	Rail-to-Rail I/O CMOS Operational Amplifiers

More results

OPA379AID Datasheet(PDF) 11 Page - Texas Instruments

OPA379AID Datasheet(HTML) 11 Page - Texas Instruments

Similar Part No. - OPA379AID

Similar Description - OPA379AID

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

Datasheet Download

Link URL