参数资料
| 型号： | MAX9951DCCB+D |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/24页 |
| 文件大小： | 0K |
| 描述： | IC PPMU DUAL SPI 64TQFP |
| 标准包装： | 160 |
| 系列： | * |
MAX9951/MAX9952
Dual Per-Pin Parametric
Measurement Units
18
Maxim Integrated
“Quick Load” Using Chip Select
If
CS goes low and then returns high without any clock
activity, the data from the input registers latch into the
PMU registers. This extra function is not standard for
SPI/QSPI/MICROWIRE interfaces. The quick load mim-
ics the function of
LOAD without forcing LOAD low.
Comparators
Two comparators configured as a window comparator
monitor MSR_. THMAX_ and THMIN_ set the high and
low thresholds that determine the window. Both out-
puts are open drain and share a single disable control
that places the outputs in a high-impedance, low-leak-
age state. Table 8 describes the comparator output
states of the MAX9951/MAX9952.
Applications Information
In force-voltage (FV) mode, the voltage at FORCE_ is
directly proportional to the input control voltage. In
force-current (FI) mode, the current flowing out of
FORCE_ is proportional to the input control voltage.
Positive current flows out of the PMU.
In force-nothing (FN) mode, FORCE_ is high impedance.
In measure-current (MI) mode, the voltage at MSR_ is
directly proportional to the current exiting FORCE_.
Positive current flows out of the PMU.
In measure-voltage (MV) mode, the voltage at MSR_ is
directly proportional to the voltage at SENSE_.
Current-Sense-Amplifier
Offset-Voltage Input
IOS is a buffered input to the current-sense amplifiers.
The current-sense amplifiers convert the input control
voltage (IN0_ or IN1_) to the forced DUT current (FI),
and convert the sensed DUT current to the MSR_ out-
put voltage (MI). When IOS equals zero relative to
DUTGND (the GND voltage at the DUT, which the level-
setting DACs and the ADC are presumed to use as a
ground reference), the nominal voltage range that cor-
responds to ±full-scale current is -4V to +4V. Any volt-
age applied to IOS adds directly to this control
input/measure output voltage range, i.e., applying +4V
to IOS forces the voltage range that corresponds to
±full-scale current from 0 to +8V.
The following equations determine the minimum and
maximum currents for each current range correspond-
ing to the input voltage or measure voltage:
VMAXCURRENT = VIOS + 4V
VMINCURRENT = VIOS - 4V
Choose IOS so the limits of MSR_ do not go closer than
2.8V to either VEE or VCC. For example, with supplies of
+10V and -5V, limit the MSR_ output to -2.2V and
+7.2V. Therefore, set IOS between +1.8V and +3.2V.
MSR_ could clip if IOS is not within this range. Use
these general equations for the limits on IOS:
Minimum VIOS = VEE + 6.8V
Maximum VIOS = VCC - 6.8V
Current Booster for Highest Current Range
An external buffer amplifier can be used to provide a
current range greater than the MAX9951/MAX9952
maximum ±64mA output current (Figure 5). This func-
tion operates as follows:
Table 8. Comparator Truth Table
DISABLE
CONDITION
DUTH_ DUTL_
0
X
High-Z
1
VMSR_ > VTHMAX_ and VTHMIN_
0
1
VTHMAX_ > VMSR_ > VTHMIN_
1
VTHMAX_ and VTHMIN_ > VMSR_
1
0
1
VTHMIN_ > VMSR_ > VTHMAX_*
0
*
VTHMAX_ > VTHMIN_ constitutes normal operation. This condi-
tion, however, has VTHMIN_ > VTHMAX_ and does not cause any
problems with the operation of the comparators.
MAX9951
MAX9952
MAIN AMP
CURRENT-
SENSE AMP
CCOM_
EXTSEL_
FORCE_
SENSE_
PMU
DUT
REXT
RA
RE
R_E
R_AS
R_A
R_X
50
Ω
IN_
MSR_
x4
XA
A
E
Figure 5. External Current Boost
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9951DCCB-TD | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| MAX9951FCCB | 功能描述:数据转换 IC - 多种 RoHS:否 制造商:Texas Instruments 转换器数量:1 分辨率:8 bit 工作电源电压:2.7 V to 5.5 V 功耗: 工作温度范围:- 40 C to + 85 C 封装 / 箱体:MSOP-10 封装:Reel |
| MAX9951FCCB+ | 功能描述:接口 - 专用 Dual Per-Pin PMU RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| MAX9951FCCB+T | 功能描述:接口 - 专用 Dual Per-Pin PMU RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
| MAX9951FCCB-D | 功能描述:接口 - 专用 RoHS:否 制造商:Texas Instruments 产品类型:1080p60 Image Sensor Receiver 工作电源电压:1.8 V 电源电流:89 mA 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:BGA-59 |
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