INA280-Q1

現行

採用小型 (SC-70) 封裝的 AEC-Q100、2.7-V 至 120-V、1.1-Mhz 電流感測放大器

立即訂購

產品規格表

document-pdfAcrobat INA280-Q1AEC-Q100, 2.7-V to 120-V, 1.1-MHz, High Precision Current Sense Amplifier in Small (SC-70) Package datasheet (英文) PDF | HTML

INA280-Q1

現行

產品規格表

立即訂購

產品詳細資料

Product type

Analog output

Common-mode voltage (max) (V)

120

Common-mode voltage (min) (V)

2.7

Input offset (±) (max) (µV)

150

Input offset drift (±) (typ) (µV/°C)

1

Features

High precision

Rating

Automotive

Voltage gain (V/V)

20, 50, 100, 200, 500

CMRR (min) (dB)

120

Bandwidth (kHz)

800, 850, 900, 1100

Iq (max) (mA)

0.6

Number of channels

1

Comparators (#)

0

Gain error (%)

0.5

Gain error drift (±) (max) (ppm/°C)

20

Slew rate (V/µs)

2

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 125

Product type

Analog output

Common-mode voltage (max) (V)

120

Common-mode voltage (min) (V)

2.7

Input offset (±) (max) (µV)

150

Input offset drift (±) (typ) (µV/°C)

1

Features

High precision

Rating

Automotive

Voltage gain (V/V)

20, 50, 100, 200, 500

CMRR (min) (dB)

120

Bandwidth (kHz)

800, 850, 900, 1100

Iq (max) (mA)

0.6

Number of channels

1

Comparators (#)

0

Gain error (%)

0.5

Gain error drift (±) (max) (ppm/°C)

20

Slew rate (V/µs)

2

TI functional safety category

Functional Safety-Capable

Operating temperature range (°C)

-40 to 125

SOT-SC70 (DCK)

5

4.2 mm² (2 mm × 2.1 mm)

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40 °C to +125 °C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Wide common-mode voltage:
- Operational voltage: 2.7 V to 120 V
- Survival voltage: −20 V to +122 V
Excellent CMRR:
- 120-dB DC (minimum)
- 85-dB AC at 50 kHz
Accuracy
- Gain:
  - Gain error: ±0.5% (maximum)
  - Gain drift: ±20 ppm/°C (maximum)
- Offset:
  - Offset voltage: ±150 µV (maximum)
  - Offset drift: ±1 µV/°C (maximum)
Available gains:
- INA280A1-Q1: 20 V/V
- INA280A2-Q1: 50 V/V
- INA280A3-Q1: 100 V/V
- INA280A4-Q1: 200 V/V
- INA280A5-Q1: 500 V/V
High bandwidth: 1.1 MHz
Slew rate: 2 V/µs
Quiescent current: 370 µA

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40 °C to +125 °C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Wide common-mode voltage:
- Operational voltage: 2.7 V to 120 V
- Survival voltage: −20 V to +122 V
Excellent CMRR:
- 120-dB DC (minimum)
- 85-dB AC at 50 kHz
Accuracy
- Gain:
  - Gain error: ±0.5% (maximum)
  - Gain drift: ±20 ppm/°C (maximum)
- Offset:
  - Offset voltage: ±150 µV (maximum)
  - Offset drift: ±1 µV/°C (maximum)
Available gains:
- INA280A1-Q1: 20 V/V
- INA280A2-Q1: 50 V/V
- INA280A3-Q1: 100 V/V
- INA280A4-Q1: 200 V/V
- INA280A5-Q1: 500 V/V
High bandwidth: 1.1 MHz
Slew rate: 2 V/µs
Quiescent current: 370 µA

The INA280-Q1 is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from 2.7 V to 120 V. It is in a highly space-efficient SC-70 package with a PCB footprint of only 2.0 mm × 2.1 mm. The current measurement accuracy is achieved thanks to the combination of an ultra-low offset voltage of ±150 µV (maximum), a small gain error of ±0.5% (maximum), and a high DC CMRR of 140 dB (typical). The INA280-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.1 MHz (at gain of 20 V/V) and an 85-dB AC CMRR (at 50 kHz).

The INA280-Q1 operates from a single 2.7-V to 20-V supply and draws a 370-µA supply current (typical). The INA280-Q1 available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low offset and drift of the INA280-Q1 enables accurate current sensing over the extended operating temperature range of −40 °C to +125 °C.

The INA280-Q1 is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from 2.7 V to 120 V. It is in a highly space-efficient SC-70 package with a PCB footprint of only 2.0 mm × 2.1 mm. The current measurement accuracy is achieved thanks to the combination of an ultra-low offset voltage of ±150 µV (maximum), a small gain error of ±0.5% (maximum), and a high DC CMRR of 140 dB (typical). The INA280-Q1 is not only designed for DC current measurement, but also for high-speed applications (like fast overcurrent protection, for example) with a high bandwidth of 1.1 MHz (at gain of 20 V/V) and an 85-dB AC CMRR (at 50 kHz).

The INA280-Q1 operates from a single 2.7-V to 20-V supply and draws a 370-µA supply current (typical). The INA280-Q1 available with five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low offset and drift of the INA280-Q1 enables accurate current sensing over the extended operating temperature range of −40 °C to +125 °C.

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INA290-Q1

現行

採用小型 (SC-70) 封裝的 AEC-Q100、2.7-V 至 120-V、1.1-MHz、超精密電流感測放大器 Functionally identical with increased accuracy.

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重要文件	類型	標題	格式選項	日期
*	資料表	INA280-Q1AEC-Q100, 2.7-V to 120-V, 1.1-MHz, High Precision Current Sense Amplifier in Small (SC-70) Package datasheet	PDF \| HTML	2020/11/20
	應用說明	Using a PCB Copper Trace as a Current Sense Shunt Resistor (Rev. A)	PDF \| HTML	2026/4/27
	應用說明	Risks and Prevention of ESD, EOS, and Latch Up Events for Current Sense Amplifiers	PDF \| HTML	2024/11/18
	Application brief	Current Sensing in an H-Bridge (Rev. D)	PDF \| HTML	2023/4/7
	Application brief	High-Side Motor Current Monitoring for Over-Current Protection (Rev. B)	PDF \| HTML	2021/2/23
	功能安全資訊	INA2x0-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA	PDF \| HTML	2020/11/17

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開發板

INA280EVM — INA280 電流感測評估模組

INA280 評估模組 (EVM) 是一個小型模組，具有五個完全獨立的電路板，可由設計人員拆開。INA280 的五個增益變體的每一個，都可以使用五個結構相同的電路板，具有最高 120 V 共模輸入範圍和 5 A (板載分流) 輸入功能。

各電路板都會提供 VS、GND、OUT，以及 V_IN+ 和 V_IN-的端子區塊測試點。焊盤和插槽允許快速實作輸入和輸出濾波，以及板載 2512 尺寸的分流電阻器。

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