- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄5538 > MAX9923HEUB+ (Maxim Integrated Products)IC AMP CURRENT SENSE 10-MSOP PDF資料下載
參數(shù)資料
| 型號： | MAX9923HEUB+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/15頁 |
| 文件大小： | 0K |
| 描述： | IC AMP CURRENT SENSE 10-MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 放大器類型： | 電流檢測 |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 0.4 V/µs |
| -3db帶寬： | 10kHz |
| 電流 - 輸入偏壓： | 1pA |
| 電壓 - 輸入偏移： | 0.2µV |
| 電流 - 電源： | 780µA |
| 電壓 - 電源，單路/雙路(±)： | 2.85 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-µMAX |
| 包裝： | 管件 |
MAX9922/MAX9923
Ultra-Precision, High-Side
Current-Sense Amplifiers
10
______________________________________________________________________________________
Detailed Description
The MAX9922/MAX9923 high-side, current-sense
amplifiers implement a spread-spectrum autozeroing
technique that minimizes the input offset error, offset
drift over time and temperature, and the effect of 1/f
noise. This technique achieves less than 25V (max)
offset voltage.
The MAX9922/MAX9923 high-side current-sense ampli-
fiers feature a +1.9V to +28V input common-mode
range that is independent of supply voltage (VDD). This
feature allows the monitoring of current out of a battery
as low as +1.9V and enables high-side current sensing
at voltages greater than the supply voltage.
The MAX9922/MAX9923 monitor current through a cur-
rent-sense resistor and amplify the voltage across the
resistor. The 28V input common-mode voltage (VRS+)
range of the MAX9922/MAX9923 is independent of the
supply voltage (VDD). High-side current monitoring
does not interfere with the ground path of the load
being measured, making the MAX9922/MAX9923 par-
ticularly useful in a wide range of high-voltage systems.
The MAX9922/MAX9923 use Maxim’s indirect current
feedback achitecture. This architecture con-
verts the differential input voltage signal to a current
through an input transconductance stage. An output
transconductance stage converts a portion of the output
voltage (equal to the output voltage divided by the
gain) into another precision current. These two currents
are subtracted and the result is fed to a loop amplifier
with sufficient gain to minimize errors (see the
Functional Diagrams.)
Battery-powered systems require a precise bidirection-
al current-sense amplifier to accurately monitor the bat-
tery’s charge and discharge currents. Measurements of
OUT with respect to VREF yield a positive and negative
voltage during charge and discharge cycles (Figure 1).
The MAX9922 allows adjustable gain with a pair of exter-
nal resistors between OUT, FB, and REF. The MAX9923T/
MAX9923H/MAX9923F use laser-trimmed internal resis-
tors for fixed gains of 25, 100, and 250, respectively, with
0.5% gain accuracy (see the
Functional Diagrams.)
Functional Diagrams
MAX9922
RSB
1
RS-
RS+
2
3
N.C.
4
GND
5
VDD
10
R2
R1
OUT
FB
REF
9
8
7
SHDN
6
GAIN = 1 +
(
R2 )
R1
MAX9923
RSB
1
RS-
RS+
2
3
N.C.
4
GND
5
VDD
10
R2
R1
SHDN
6
OUT
9
FB
8
REF
7
MAX9923
VERSION
GAIN
T25
H
100
F
250
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 0702871000 | CONN HEADER BKWY DL TIN 4POS |
| 60771-2 | CONN RING 14-18AWG #8 TIN CRIMP |
| 1.5KE82CHE3/54 | TVS BIDIR 1.5KW 82V 10% 1.5KE |
| MAX4163EBL+T | IC OPAMP GO RRIO 200KHZ 9UCSP |
| RCWL0805R470JNEA | RES .47 OHM 1/8W 5% 0805 SMD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9923HEUB+ | 功能描述:電流靈敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| MAX9923HEUB+T | 功能描述:電流靈敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| MAX9923TABT+T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel |
| MAX9923TAUB+ | 功能描述:電流靈敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
| MAX9923TEUB+ | 功能描述:電流靈敏放大器 Current-Sense Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。