5 Pin Configuration and Functi…

INA129UA

ActiveInstrumentation, OP Amps, Buffer AmpsSOIC

IC INST AMP 1 CIRCUIT 8SOIC

The INA129UA is a low-power, precision instrumentation amplifier in an 8-pin SOIC package. It operates with a supply voltage range of ±2.25V to ±18V and allows gain settings from 1 to 10,000 via an external resistor, featuring low offset voltage and high common-mode rejection.Checked against the datasheet

See alternatives Ask AI FAEDatasheet PDF

All alternatives

View full report

37 alternatives on file. Sign in to view them.

Technical parameters

Key specs

Supply voltage4.5 ~ 36 V

Gain bandwidth product1.3 MHzTyp · 1.3MHz (G = 1)

Input offset voltage50 µVTyp

Quiescent current700 µATyp

Channels1

Datasheet-verified parameters

23 items

Parameter	Value and test conditions	Source
Supply voltage range	Dual-supply: Min ±2.25V, Typ ±15V, Max ±18V; Single-supply: Min 4.5V, Typ 30V, Max 36V
Gain-bandwidth product	1.3MHz (G = 1)
Input offset voltage	50μV, maximum
Quiescent current	700μA
Number of channels	1
Package	SOIC (D), 8-pin
Operating temperature	-40°C to 125°C
RoHS	Yes
Gain	1 to 10000 V/V
Gain equation	G = 1 + 49.4 kΩ / RG
Common-mode rejection ratio	120dB, minimum
Input bias current	– 5nA, maximum (CSO: SHE); – 0.7nA, maximum (CSO: FRE)
Noise	8nV/√Hz, 0.2μVpp
Input overvoltage protection	±40V
Absolute Maximum Ratings - Supply voltage	Dual supply: ±18V; Single supply: 36V
Absolute Maximum Ratings - Analog input voltage	±40V
Absolute Maximum Ratings - Operating temperature	-40°C to 125°C
Recommended Operating Conditions - Supply voltage	Dual-supply: Min ±2.25V, Typ ±15V, Max ±18V; Single-supply: Min 4.5V, Typ 30V, Max 36V
Recommended Operating Conditions - Temperature	Min -40°C, Max 85°C
ESD - Human-body model	±2000V
ESD - Charged-device model	±50V
Load capacitance	1000pF (Stable operation)
Short-circuit current	CSO: SHE: +6/-15mA; CSO: FRE: +18/-18mA (Continuous to VS/2)

All parameters (20)ExpandCollapse

Power
Current - Input Bias	20 nA
Current - Output / Channel	15 mA
Current - Supply	700µA
Voltage - Supply Span (Max)	36 V
Voltage - Supply Span (Min)	4.5 V
AC and DC characteristics
-3db Bandwidth	1.3 MHz
Slew Rate	4V/µs
Voltage - Input Offset	25 µV
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-40°C~125°C
Package	Tube
Package / Case	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package	8-SOIC
Other
Amplifier Type	Instrumentation
Base Product Number	INA129
Mfr	Texas Instruments
Number of Circuits	1
Output Type	-
Product Status	Active
Series	-

Pinout and package

Pin	Name	Function
1	RG	(Gain setting pin)
2	VIN-	(Negative input)
3	VIN+	(Positive input)
4	V-	(Negative supply)
5		Ref (Reference input)
6	VO	(Output)
7	V+	(Positive supply)
8	RG	(Gain setting pin)

Documents

DatasheetDatasheet · 2.7 MB · 2026-10-29

Open document center

Datasheet-verified content is extracted by AI from the manufacturer datasheet. Click a page number to view the original.