Datasheet > SGM8188

SGM8188

更新时间： 2024-03-03 10:11:23

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
6页	387K
描述
Tiny Package, Nano-Power, Precision Current-Sense Amplifier

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SGM8188 数据手册

SGM8188

Tiny Package, Nano-Power,

Precision Current-Sense Amplifier

GENERAL DESCRIPTION

FEATURES

The SGM8188 series is a nano-power, high precision,

high-side current-sense amplifier. The device consumes

only 1.2μA (MAX) quiescent current. It features a 60μV

(MAX) low offset voltage, which allows for 12-bit

resolution at a very low 50mV full-scale current

measurement. The device can sense the voltage

across a current-sense resistor in a common mode

voltage range from 1.6V to 28V. The SGM8188 series

provides four fixed gains: 25V/V, 50V/V, 100V/V and

200V/V, which allows flexible selection of the external

current-sense resistor.

● Ultra-Low Quiescent Current: 1.2μA (MAX)

● Input Common Mode Range: 1.6V to 28V

● Low Input Offset Voltage: 60μV (MAX)

● Choice of Gains:

 SGM8188A0 Gain: 25V/V

 SGM8188A1 Gain: 50V/V

 SGM8188A2 Gain: 100V/V

 SGM8188A3 Gain: 200V/V

● Low Gain Error: ±0.4% (MAX)

● Voltage Output

● -40℃ to +125℃ Operating Temperature Range

● Available in a Green WLCSP-1×1-4B-A Package

The SGM8188 is available in a Green WLCSP-1×1-4B-A

package. The tiny package makes the device an

excellent choice for portable and battery-powered

applications with limited size. The SGM8188 is rated

over the -40℃ to +125℃ temperature range.

APPLICATIONS

Portable Equipment

Battery-Powered Equipment

Mobile Phones

Laptops

Personal Digital Assistants

Power Management

TYPICAL APPLICATION

V_BATT= 1.6V to 28V

I_LOAD

V_DD= 3.3V

μc

RS+

R₁

R_SENSE

OUT

ADC

RS-

R₁

R_OUT

GND

SGM8188

Load

Figure 1. Typical Application Circuit

SG Micro Corp

JUNE 2023 – REV. A

www.sg-micro.com

12 3 4 5 6

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