INA4235

AKTIV

Vierkanaliger, ultrapräziser 16 Bit-Wandler mit Strom, Spannung, Leistungs- und Energiemonitor mit I

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Datenblatt

document-pdfAcrobat INA4235 48V, Quad Channel, 16-Bit, Ultra - Precise, Current, Voltage, Power, and Energy Monitor With an I2C In datasheet (Englisch)

INA4235

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Common-mode voltage (max) (V)

48

Common-mode voltage (min) (V)

-0.3

Digital interface

I2C, SMBus

Resolution (Bits)

16

Input offset (±) (max) (µV)

10

Input offset drift (±) (max) (µV/°C)

0.025

Voltage gain (V/V)

1

CMRR (min) (dB)

130

Iq (max) (mA)

0.5

Gain error (%)

0.1

Gain error drift (±) (max) (ppm/°C)

25

Features

Alert Function, Bidirectional, Integrated Power Accumulator, Intergrated Power Monitor, Low-side Capable

Number of channels

4

Power measurement accuracy (%)

0.8

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Common-mode voltage (max) (V)

48

Common-mode voltage (min) (V)

-0.3

Digital interface

I2C, SMBus

Resolution (Bits)

16

Input offset (±) (max) (µV)

10

Input offset drift (±) (max) (µV/°C)

0.025

Voltage gain (V/V)

1

CMRR (min) (dB)

130

Iq (max) (mA)

0.5

Gain error (%)

0.1

Gain error drift (±) (max) (ppm/°C)

25

Features

Alert Function, Bidirectional, Integrated Power Accumulator, Intergrated Power Monitor, Low-side Capable

Number of channels

4

Power measurement accuracy (%)

0.8

Rating

Catalog

Operating temperature range (°C)

-40 to 125

DSBGA (YBJ)

16

2.56 mm² (1.6 mm × 1.6 mm)

High-side or low-side current sensing
Operates from a 1.7V to 5.5V power supply
Reports current, voltage, power, and energy
Programmable full scale range: 20mV / 80mV
Input common mode range: –0.3V to 48V
Current monitoring accuracy:
- 16-bit ADC resolution
- 0.1% gain error (maximum)
- 10µV offset (maximum)
Power monitoring accuracy:
- 0.2% full scale (maximum)
Energy monitoring accuracy:
- 0.7% full scale (maximum)
Low input bias currents: 5nA (maximum)
Low disable current: 50nA (maximum)
Configurable averaging options
Alert limits for over and under current events
1.2V compliant I2C, SMBus interface
16-pin selectable addresses
DSBGA-16 Package (1.5mm × 1.5mm)

High-side or low-side current sensing
Operates from a 1.7V to 5.5V power supply
Reports current, voltage, power, and energy
Programmable full scale range: 20mV / 80mV
Input common mode range: –0.3V to 48V
Current monitoring accuracy:
- 16-bit ADC resolution
- 0.1% gain error (maximum)
- 10µV offset (maximum)
Power monitoring accuracy:
- 0.2% full scale (maximum)
Energy monitoring accuracy:
- 0.7% full scale (maximum)
Low input bias currents: 5nA (maximum)
Low disable current: 50nA (maximum)
Configurable averaging options
Alert limits for over and under current events
1.2V compliant I2C, SMBus interface
16-pin selectable addresses
DSBGA-16 Package (1.5mm × 1.5mm)

The INA4235 device is a quad channel 16-bit digital current monitor with an I2C/SMBus-compatible interface that is compliant with digital bus voltages from 1.2V to 5V. The device monitors the voltage across an external sense resistor and reports values for shunt voltage, bus voltage, current, power, and energy for each channel.

The INA4235 features programmable ADC conversion times and averaging that is common for all channels. Each channel has a programmable calibration value with an internal multiplier that enables direct readouts of current in amperes, power in watts, and energy in joules. Each channel monitors the bus voltage present on the IN– pin and can alert on overcurrent and undercurrent conditions, as well as on overvoltage and undervoltage conditions.High input impedance while in current measurement mode allows use of larger current sense resistors needed to measure small value system currents.

The INA4235 senses current on common-mode bus voltages that can vary from –0.3V to 48V, independent of the supply voltage. The device operates from a single 1.7V to 5.5V supply, drawing a typical supply current of 400µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is 2.5µA and can be fully disabled using the enable pin to achieve an supply current less than 50nA. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses.

The INA4235 device is a quad channel 16-bit digital current monitor with an I2C/SMBus-compatible interface that is compliant with digital bus voltages from 1.2V to 5V. The device monitors the voltage across an external sense resistor and reports values for shunt voltage, bus voltage, current, power, and energy for each channel.

The INA4235 features programmable ADC conversion times and averaging that is common for all channels. Each channel has a programmable calibration value with an internal multiplier that enables direct readouts of current in amperes, power in watts, and energy in joules. Each channel monitors the bus voltage present on the IN– pin and can alert on overcurrent and undercurrent conditions, as well as on overvoltage and undervoltage conditions.High input impedance while in current measurement mode allows use of larger current sense resistors needed to measure small value system currents.

The INA4235 senses current on common-mode bus voltages that can vary from –0.3V to 48V, independent of the supply voltage. The device operates from a single 1.7V to 5.5V supply, drawing a typical supply current of 400µA in normal operation. The device can be placed in a low-power standby mode where the typical operating current is 2.5µA and can be fully disabled using the enable pin to achieve an supply current less than 50nA. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses.

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Top-Dokumentation	Typ	Titel	Format-Optionen	Neueste englische Version herunterladen	Datum
*	Datenblatt	INA4235 48V, Quad Channel, 16-Bit, Ultra - Precise, Current, Voltage, Power, and Energy Monitor With an I2C In datasheet			30.05.2024
	Anwendungshinweis	Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers	PDF \| HTML		18.11.2024

Design und Entwicklung

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Evaluierungsplatine

INA423XEVM — Evaluierungsmodul für INA4230 und INA4235

Das INA423X-Evaluierungsmodul (EVM) ist eine Plattform zum Evaluieren der Hauptfunktionen und der Leistungen der INA4230 und INA4235. Das EVM unterstützt Strommessungen von bis zu 10 A pro Kanal und verfügt über eine GUI zur Unterstützung des Lese- und Schreibvorgangs von Geräteregistern.

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