INA230AIRGTR

Current, Voltage and Power Monitor

The INA230AIRGTR is a current, voltage and power monitor from Texas Instruments. View the full INA230AIRGTR datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

INA230AIRGTR shares its datasheet with INA230, whose page lists every part number it covers.

Official INA230AIRGTR datasheet (PDF) — the source this page was extracted from.

Manufacturer

Texas Instruments

INA230AIRGTR Key Specifications

Parameter	Value
Shunt voltage input range	-81.92 to +81.9175 mV
Shunt offset voltage	±25 μV max (VCM = 12 V); drift ±0.1 μV/°C max
Shunt and bus gain error	±0.3% max; drift 50 ppm/°C max
Bus offset voltage	±15 mV max
ADC resolution	16 bits; LSB 2.5 μV (shunt), 1.25 mV (bus)
Conversion time	140 μs to 8.244 ms typ (CT setting dependent)
Quiescent current	330 μA typ, 420 μA max (VS = 3.3 V); shutdown 0.5 μA typ, 2 μA max
CMRR	120 dB min (VCM = 0–36 V)
Bus input impedance	830 kΩ typ

INA230AIRGTR Overview

Part: INA230 (INA230AIRGTR) — Texas Instruments

Type: I²C Digital Current, Voltage and Power Monitor

Description: 36 V common-mode, 16-bit I²C current-shunt and power monitor with alert, 2.7–5.5 V supply, ±0.3% max gain error and ±25 μV max shunt offset.

Operating Conditions:

Supply voltage (VS): 2.7–5.5 V
Operating temperature: -40 to +125 °C
Common-mode input range: 0–36 V
I²C clock: up to 400 kHz (fast mode), up to 3.4 MHz (high-speed mode)

Absolute Maximum Ratings:

Max supply voltage: 6 V
Differential input (VIN+ − VIN-): ±40 V
Common-mode input (VIN+, VIN-): GND − 0.3 V to 40 V
Input current into any pin: 5 mA
Open-drain output current (SDA, ALERT): 10 mA
Max junction temperature: 150 °C
Storage temperature: -65 to 150 °C

Key Specs:

Shunt voltage input range: -81.92 to +81.9175 mV
Shunt offset voltage: ±25 μV max (VCM = 12 V); drift ±0.1 μV/°C max
Shunt and bus gain error: ±0.3% max; drift 50 ppm/°C max
Bus offset voltage: ±15 mV max
ADC resolution: 16 bits; LSB 2.5 μV (shunt), 1.25 mV (bus)
Conversion time: 140 μs to 8.244 ms typ (CT setting dependent)
Quiescent current: 330 μA typ, 420 μA max (VS = 3.3 V); shutdown 0.5 μA typ, 2 μA max
CMRR: 120 dB min (VCM = 0–36 V)
Bus input impedance: 830 kΩ typ

Features:

Bus voltage sensing from 0 to 36 V
High- or low-side sensing
Current, voltage and power reporting
Configurable averaging options
Programmable alert threshold
16 programmable I²C addresses
I²C- and SMBus-compatible interface

Applications:

Rack servers
Wireless infrastructure
High performance computing
Power management
Battery cell monitors and balancers
Power supplies
Test equipment

Package:

RGT (VQFN, 16-pin), 3.00 mm × 3.00 mm
DGS (VSSOP, 10-pin), 3.00 mm × 4.90 mm

INA230AIRGTR Features

Bus voltage sensing from 0V to 36V
High- or low-side sensing
Current, voltage, and power reporting
High accuracy:
-0.3% gain error (maximum)
-25μV offset (maximum)
Configurable averaging options
Programmable alert threshold
Power supply operation: 2.7V to 5.5V
Packages:
-16-pin RGT (VQFN)
-10-pin DGS (VSSOP)

INA230AIRGTR Applications

Typical Application

INA230AIRGTR Pin Configuration

Figure 5-1. RGT Package 16-Pin VQFN (Top View)

Table 4-1. Related Products

Figure 5-2. DGS Package 10-Pin VSSOP (Top View)

Table 5-1. Pin Functions

PIN - NAME	PIN - VQFN	PIN - VSSOP	TYPE	DESCRIPTION
A0	2	2	Digital input	Address pin. Connect to GND, SCL, SDA, or V S . Table 7-2 shows pin settings and corresponding addresses.
A1	1	1	Digital input	Address pin. Connect to GND, SCL, SDA, or V S . Table 7-2 shows pin settings and corresponding addresses.
ALERT	3	3	Digital output	Multi-functional alert, open-drain output.
GND	10	7	Analog	Ground
NC	6, 7, 8, 14, 15, 16	-	-	No internal connection
SCL	5	5	Digital input	Serial bus clock line, open-drain input.
SDA	4	4	Digital input/output	Serial bus data line, open-drain input/output.
VBUS	11	8	Analog input	Bus voltage input
IN-	12	9	Analog input	Negative differential shunt voltage input. For high-side applications, connect to load side of sense resistor. For low-side applications, connect to ground side of sense resistor.
IN+	13	10	Analog input	Positive differential shunt voltage input. For high-side applications, connect to bus voltage side of sense resistor. For low-side applications, connect to load side of sense resistor.
V S	9	6	Analog	Power supply, 2.7 V to 5.5 V.
Thermal Pad	-	PAD	-	This pad can be connected to ground or left floating.

INA230AIRGTR Electrical Characteristics

at T A = 25°C, VS = 3.3 V, V SENSE = V IN+ - V IN- = 0 mV, VIN- = VBUS = 12V (unless otherwise noted)

	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
INPUT	INPUT	INPUT	INPUT	INPUT	INPUT	INPUT
	Shunt voltage input range		-81.92		81.9175	mV
CMRR	Common-mode rejection	V CM = 0 V to 36 V, T A = -40°C to 125°C	120	140		dB
V os	Shunt offset voltage	V CM = 12 V		-9.8	±25	μV
dV os /dT	Shunt offset voltage drift	T A = -40°C to +125°C		±0.05	±0.1	μV/°C
PSRR SHUNT	Power supply rejection ratio (Current measurements)			-3.0		μV/V
V os_b	Bus offset Voltage			+2.3	±15	mV
dV os_b /dT	Bus offset voltage drift	T A = -40°C to +125°C			±40	μV/°C
PSRR BUS	Power supply rejection ratio (Voltage measurements)			0.4		mV/V
Z BUS	BUS input impedance			830		kΩ
I	Input bias current (DGS Package)	IN+, IN-, Current measurement mode		10		μA
B	Input bias current (RGT Package)	IN+, IN-, Current measurement mode		0.1		nA
I B_SHDWN	Input Leakage	IN+, IN-, Shutdown Mode		0.1	0.5	μA
DC ACCURACY	DC ACCURACY	DC ACCURACY	DC ACCURACY	DC ACCURACY	DC ACCURACY	DC ACCURACY
	ADC Resolution	T A = -40°C to 125°C		16		Bits
	1 LSB step size	Shunt Voltage		2.5		μV
	1 LSB step size	Bus Voltage		1.25		mV
		CT bit = 000		140	154	μs
	ADC Conversion-time	CT bit = 001		204	224	μs
	ADC Conversion-time	CT bit = 010		332	365	μs
	ADC Conversion-time	CT bit = 011		588	646	μs
	ADC Conversion-time	CT bit = 100		1.100	1.21	ms
	ADC Conversion-time	CT bit = 101		2.116	2.328	ms
		CT bit = 110		4.156	4.572	ms
		CT bit = 111		8.244	9.068	ms
G SERR	Shunt voltage gain error			±0.010	±0.3	%
G S_DRFT	Shunt voltage gain error drift	T A = -40°C to +125°C		10	50	ppm/°C
G BERR	Bus voltage gain error			±0.010	±0.3	%
G B_DRFT	Bus voltage gain error drift	T A = -40°C to +125°C		10	50	ppm/°C
DNL	Differential Non-Linearity			±0.1		LSB
POWER SUPPLY	POWER SUPPLY	POWER SUPPLY	POWER SUPPLY	POWER SUPPLY	POWER SUPPLY	POWER SUPPLY
I Q	Quiescent current	V SENSE = 0 mV		330	420	μA
		Shutdown		0.5	2	μA

INA230AIRGTR Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) (1)

		MIN	MAX	UNIT
V s	Supply Voltage		6	V
V IN+ , V IN-	Differential (V IN+ ) - (V IN- )	-40	40	V
V IN+ , V IN-	Common - mode	GND - 0.3	40	V
V IO	SDA, ALERT, A0	GND - 0.3	6	V
V IO	SCL	GND - 0.3	V S + 0.3	V
	Input current into any pin		5	mA
	Open-drain digital output current (SDA, ALERT)		10	mA
T A	Operating Temperature	-55	150	°C
T J	Junction temperature		150	°C
T stg	Storage temperature	-65	150	°C

INA230AIRGTR Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

		MIN	MAX	UNIT
V CM	Common-mode input range	0	36	V
V S	Operating supply range	2.7	5.5	V
T A	Ambient temperature	-40	125	°C

INA230AIRGTR Thermal Information

THERMAL METRIC (1)	THERMAL METRIC (1)	INA230 - DGS (VSSOP) - 10 PINS	INA230 - RGT(QFN) - 16 PINS	UNIT
R θJA	Junction-to-ambient thermal resistance	162.8	54.5	°C/W
R θJC(top)	Junction-to-case (top) thermal resistance	58.6	65.7	°C/W
R θJB	Junction-to-board thermal resistance	83.9	29.9	°C/W
Ψ JT	Junction-to-top characterization parameter	7.6	3.8	°C/W
Y JB	Junction-to-board characterization parameter	82.4	29.9	°C/W
R θJC(bot)	Junction-to-case (bottom) thermal resistance	n/a	14.0	°C/W

INA230AIRGTR Typical Application

The INA230 measures the voltage developed across a current-sensing resistor (RSHUNT) when current passes through it. The device also measures the bus supply voltage and can calculate power when calibrated. It comes with alert capability where the alert pin can be programmed to respond to a user-defined event or to a conversion ready notification. This design illustrates the ability of the alert pin to respond to a set threshold.

INA230AIRGTR Package Information

PART NUMBER	PACKAGE (1)	PACKAGE SIZE (2)
INA230	RGT (VQFN, 16)	3.00mm × 3.00mm
INA230	DGS (VSSOP, 10)	3.00mm × 4.90mm

(1) For more information, see Section 11.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.

GND

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part Number	Manufacturer	Package
INA230	Texas Instruments	RGT (VQFN-16)
INA230AIDGSR	Texas Instruments	VSSOP-10

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