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| 型号： | MAX1395ETB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/18页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT 357KSPS 10-TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 位数： | 10 |
| 采样率（每秒）： | 357k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 830µW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-TDFN-EP（3x3） |
| 包装： | 标准包装 |
| 输入数目和类型： | 2 个单端，单极；2 个单端，双极；1 个差分，单极；1 个差分，双极 |
| 产品目录页面： | 1396 (CN2011-ZH PDF) |
| 其它名称： | MAX1395ETB+TDKR |
As shown in Figure 11, drive the MAX1392/MAX1395
chip-select input (CS) with the DSP’s frame-sync signal.
OE may be connected to GND or driven independently.
For continuous conversion operation, keep OE low and
make the CS falling edge coincident with the 14th
falling edge of the SCLK. Fourteen-bit data transfers
can also be performed with compatible DSPs.
Unregulated Two-Cell or Single Lithium
LiMnO2 Cell Operation
Low operating voltage (1.5V to 3.6V) and ultra-low-power
consumption make the MAX1392/MAX1395 ideal for low
cost, unregulated, battery-powered applications without
the need for a DC-DC converter. Power the MAX1392/
MAX1395 directly from two alkaline/NiMH/NiCd cells in
series or a single lithium coin cell as shown in the
Typical
Operating Circuit.
Fresh alkaline cells have a voltage of approximately
1.5V per cell (3V with 2 cells in series) and approach
end of life at 0.8V (1.6V with 2 cells in series). A typical
2xAA alkaline discharge curve is shown in Figure 12a.
A typical CR2032 lithium (LiMnO2) coin cell discharge
curve is shown in Figure 12b.
Layout, Grounding, and Bypassing
For best performance, use PC boards. Board layout
must ensure that digital and analog signal lines are
separated from each other. Do not run analog and digi-
tal (especially clock) lines parallel to one another, or
digital lines underneath the ADC package.
Figure 13 shows the recommended system ground
connections. Establish a single-point analog ground
(star ground point) at the MAX1392/MAX1395s’ GND
pin or use the ground plane.
High-frequency noise in the power supply (VDD)
degrades the ADC’s performance. Bypass VDD to GND
with a 0.1F capacitor as close to the device as possi-
ble. Minimize capacitor lead lengths for best supply
noise rejection. To reduce the effects of supply noise, a
10
Ω resistor can be connected as a lowpass filter to
attenuate supply noise.
Exposed Pad
The MAX1392/MAX1395 TDFN package has an
exposed pad on the bottom of the package. This pad is
not internally connected. Connect the exposed pad to
the GND pin on the MAX1392/MAX1395 or leave
unconnected for proper electrical performance.
Definitions
Integral Nonlinearity (INL)
INL is the deviation of the values on an actual transfer
function from a straight line. For the MAX1392/
MAX1395, this straight line is between the end points of
the transfer function once offset and gain errors have
been nullified. INL deviations are measured at every
step and the worst-case deviation is reported in the
Electrical Characteristics section.
MAX1392/MAX1395
______________________________________________________________________________________
13
1.5V to 3.6V, 357ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 10-Bit, SAR ADCs
ADC
STATE
BIPOLAR (AIN1)*
UNI (AIN2)*
1
16
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
FS
2
1
SCLK
DOUT
*INDICATES THE MAX1395
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
POWER-
DOWN
POWER-
DOWN
SAMPLING INSTANT
CS
OE
POWER-UP
AND ACQUIRE
(tACQ)
HOLD
AND CONVERT
(tCONV)
UNI/BIP
(CH1/CH2)*
Figure 10. DSP Serial-Timing Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1395MTB+T | 功能描述:模数转换器 - ADC 10-Bit 2Ch 357ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1395MTB-T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1396ETB | 制造商:Maxim Integrated Products 功能描述:1.5V-3.6V312.5KSPS1-CHANNEL TRUE- - Rail/Tube |
| MAX1396ETB+ | 制造商:Maxim Integrated Products 功能描述:ADC SGL SAR 312.5KSPS 12-BIT SERL 10TDFN EP - Rail/Tube |
| MAX1396ETB+T | 功能描述:模数转换器 - ADC 12-Bit 2Ch 312ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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