INA194AIDBVR datasheet(8/24 Pages) TI1

Part #	INA194AIDBVR

Description	CURRENT SHUNT MONITOR ??6V to 80V Common-Mode Range

Download	24 Pages

Scroll/Zoom	100%

Manufacturer	TI1 [Texas Instruments]

Direct Link	http://www.ti.com

Logo

8 / 24 page

G=

V

OUT1

OUT2

-

100mV

20mV

-

R

S

Load

V

IN+

-16Vto+80V

I

S

V

IN+

V

IN-

+2.7Vto+18V

V+

OUT

INA193-INA198

R

1

R

L

R

2

V RTI(Referred-To-Input)=

OS

V

OUT1

G

- 100mV

INA193, INA194

INA195, INA196

INA197, INA198

SBOS307F – MAY 2004 – REVISED FEBRUARY 2010

www.ti.com

APPLICATIONS INFORMATION

BASIC CONNECTION

ACCURACY VARIATIONS AS A RESULT OF

VSENSE AND COMMON-MODE VOLTAGE

Figure 18 shows the basic connection of the

INA193-INA198. The input pins, VIN+ and VIN−, should

The accuracy of the INA193

−INA198 current shunt

be connected as closely as possible to the shunt

monitors is a function of two main variables: VSENSE

resistor to minimize any resistance in series with the

(VIN+ − VIN−) and common-mode voltage, VCM, relative

shunt resistance.

to the supply voltage, VS. VCM is expressed as (VIN+ +

VIN−)/2; however, in practice, VCM is seen as the

Power-supply bypass capacitors are required for

voltage at VIN+ because the voltage drop across

stability. Applications with noisy or high impedance

VSENSE is usually small.

power supplies may require additional decoupling

capacitors to reject power-supply noise. Connect

This section addresses the accuracy of these specific

bypass capacitors close to the device pins.

operating regions:

Normal Case 1: VSENSE ≥ 20mV, VCM ≥ VS

Normal Case 2: VSENSE ≥ 20mV, VCM < VS

Low VSENSE Case 1: VSENSE < 20mV, −16V ≤ VCM

< 0

Low VSENSE Case 2: VSENSE < 20mV, 0V ≤ VCM ≤

VS

Low VSENSE Case 3: VSENSE < 20mV, VS < VCM ≤

80V

Normal Case 1: VSENSE ≥ 20mV, VCM ≥ VS

This

region

of

operation

provides

the

highest

accuracy.

Here,

the

input

offset

voltage

is

characterized

and

measured

using

a

two-step

method. First, the gain is determined by Equation 1.

where:

VOUT1 = Output Voltage with VSENSE = 100mV

VOUT2 = Output Voltage with VSENSE = 20mV

(1)

Then the offset voltage is measured at VSENSE =

100mV and referred to the input (RTI) of the current

shunt monitor, as shown in Equation 2.

Figure 18. INA193-INA198 Basic Connection

(2)

In the Typical Characteristics, the Output Error vs

POWER SUPPLY

Common-Mode Voltage curve (Figure 6) shows the

highest accuracy for this region of operation. In this

The

input

circuitry

of

the

INA193-INA198

can

plot, VS = 12V; for VCM ≥ 12V, the output error is at its

accurately measure beyond its power-supply voltage,

minimum. This case is also used to create the VSENSE

V+. For example, the V+ power supply can be 5V,

≥

20mV

output

specifications

in

the

Electrical

whereas the load power-supply voltage is up to +80V.

Characteristics table.

The output voltage range of the OUT terminal,

however,

is

limited

by

the

voltages

on

the

power-supply pin.

8

Submit Documentation Feedback

Product Folder Link(s): INA193 INA194 INA195 INA196 INA197 INA198

Similar Part No. - INA194AIDBVR

Manufacturer	Part #	Datasheet	Description
Burr-Brown (TI)	INA194AIDBVR	226Kb / 15P	CURRENT SHUNT MONITOR
Texas Instruments	INA194AIDBVR	1Mb / 33P	[Old version datasheet] Current Shunt Monitor ??6 V to 80 V Common-Mode Range
	INA194AIDBVR	1Mb / 33P	[Old version datasheet] Current Shunt Monitor ??6 V to 80 V Common-Mode Range
	INA194AIDBVRG4	1Mb / 33P	[Old version datasheet] Current Shunt Monitor ??6 V to 80 V Common-Mode Range
	INA194AIDBVRG4	1Mb / 33P	[Old version datasheet] Current Shunt Monitor ??6 V to 80 V Common-Mode Range

More results

Similar Description - INA194AIDBVR

Manufacturer	Part #	Datasheet	Description
Texas Instruments	INA193AIDBVRG4	627Kb / 24P	[Old version datasheet] CURRENT SHUNT MONITOR ??6V to 80V Common-Mode Range
	INA193	1Mb / 33P	[Old version datasheet] Current Shunt Monitor ??6 V to 80 V Common-Mode Range
	INA193	1Mb / 33P	[Old version datasheet] Current Shunt Monitor ??6 V to 80 V Common-Mode Range
	INA195	1Mb / 33P	[Old version datasheet] INA19x Current Shunt Monitor ??6 V to 80 V Common-Mode Range
	INA282	1Mb / 33P	[Old version datasheet] High-Accuracy, Wide Common-Mode Range, Bi-Directional CURRENT SHUNT MONITOR
	INA193A-Q1	1Mb / 30P	[Old version datasheet] Current Shunt Monitors ??6-V to 80-V Common-Mode Range
	INA193A-Q1	464Kb / 22P	[Old version datasheet] CURRENT SHUNT MONITORS ??6-V to 80-V Common-Mode Range
	INA193A-EP	465Kb / 20P	[Old version datasheet] CURRENT SHUNT MONITORS??6 V to 80 V Common Mode Range
	INA282	686Kb / 31P	[Old version datasheet] High-Accuracy, Wide Common-Mode Range, Bi-Directional CURRENT SHUNT MONITOR Zero-Drift Series
	INA193A-EP	918Kb / 23P	[Old version datasheet] CURRENT SHUNT MONITORS ??6-V to 80-V COMMON MODE RANGE

More results

INA194AIDBVR Datasheet(PDF) 8 Page - Texas Instruments

INA194AIDBVR Datasheet(HTML) 8 Page - Texas Instruments

Similar Part No. - INA194AIDBVR

Similar Description - INA194AIDBVR

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

Datasheet Download

Link URL