参数资料
型号: MAX9937AXK+T
厂商: Maxim Integrated Products
文件页数: 5/11页
文件大小: 0K
描述: IC AMP CURRENT SENSE SC70-5
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
放大器类型: 电流检测
电路数: 1
-3db带宽: 350kHz
电流 - 输入偏压: 2µA
电压 - 输入偏移: 300µV
电流 - 电源: 20µA
电流 - 输出 / 通道: 22mA
电压 - 电源,单路/双路(±): 2.7 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 6-TSSOP(5 引线),SC-88A,SOT-353
供应商设备封装: SC-70-5
包装: 标准包装
产品目录页面: 1392 (CN2011-ZH PDF)
其它名称: MAX9937AXK+TDKR
MAX9937
Automotive Current-Sense Amplifier
with Reverse-Battery Protection
_______________________________________________________________________________________
3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Output Current
IOUT
RRSN = 500
Ω, RRSP = 0, VOUT = 0
2
7.5
22
mA
VSENSE = 500mV,
ΔIOUT ≤ 1%
-0.1
VCC +
0.1
Output-Voltage Compliance
(Note 6)
VBAT = 4V, VSENSE = 0.1V,
ΔIOUT ≤ 2%
-0.1
VRSP -
0.15
VRSP -
0.8
V
Output-Voltage High
VOH
VBAT = 4V, VSENSE = +500mV,
VOH = VBAT - VOUT
0.4
1.2
V
Output-Voltage Low
VOL
VBAT = 4V, VSENSE = -100mV
2
20
mV
AC CHARACTERISTICS
3dB Large-Signal Bandwidth
BW
VSENSE = 137.5mVDC + 225mVP-P
250
kHz
3dB Small-Signal Bandwidth
350
kHz
Settling Time to 1%
tS
5s
Input-Voltage Noise
en
f = 1kHz
28
nV/
√Hz
Input Current Noise
In
f = 1kHz
1
pA/
√Hz
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V, VBAT = VRS+ = 12V, VSENSE = (VRS+ - VRS-) = 0, RRSP = RRSN = 500Ω, ROUT = 10kΩ, TA = -40°C to +125°C. Typical
values are at TA = +25°C, unless otherwise noted. See the Typical Application Circuit.) (Note 2)
Note 2: All devices are 100% production tested at TA = +25°C. Temperature limits are guaranteed by design.
Note 3: Gain and offset voltage are calculated based on two point measurements: VSENSE1 = 5mV and VSENSE2 = 200mV.
Note 4: Input bias current IB+ and IB- refers to the internal op amp’s inputs (inverting and noninverting) so that IB- = IRSN and
IB+ = IRSP - IOUT.
Note 5: The gain is set by the external resistors RRSP and ROUT. See the Typical Application Circuit.
Note 6: VRSP = VBAT - VSENSE - VOS - (RRSN x IB-).
I
II
I
B
BB
B
=
+
=
+
-
2
Δ
||
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