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参数资料
| 型号： | MAX1396MUB+T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | 1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/2-Channel Single-Ended, 12-Bit, SAR ADCs |
| 中文描述： | 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO10 |
| 封装： | MO-187C-BA, MICRO SOP-10 |
| 文件页数： | 5/19页 |
| 文件大小： | 1037K |
| 代理商： | MAX1396MUB+T |
As shown in Figure 11, drive the MAX1393/MAX1396
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 16th
falling edge of the SCLK.
Unregulated Two-Cell or Single Lithium
LiMnO2 Cell Operation
Low operating voltage (1.5V to 3.6V) and ultra-low-power
consumption make the MAX1393/MAX1396 ideal for low
cost, unregulated, battery-powered applications without
the need for a DC-DC converter. Power the MAX1393/
MAX1396 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 MAX1393/MAX1396s’ 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
resistor can be connected as a lowpass filter to
attenuate supply noise.
Exposed Pad
The MAX1393/MAX1396 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 MAX1393/MAX1396 or leave float-
ing 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 MAX1393/
MAX1396, 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.
MAX1393/MAX1396
______________________________________________________________________________________
13
1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 12-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
D11
D0
D10
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)*
*INDICATES THE MAX1396
Figure 10. DSP Serial-Timing Diagram
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1396MUB+ | 1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/2-Channel Single-Ended, 12-Bit, SAR ADCs |
| MAX1416AEWE+ | 16-Bit, Low-Power, 2-Channel, Sigma-Delta ADCs |
| MAX1457AWI+T | 0.1% Accurate Signal Conditioner for Piezoresistive Sensor Compensation |
| MAX1457AWI+ | 0.1% Accurate Signal Conditioner for Piezoresistive Sensor Compensation |
| MAX1459CAP+T | 2-Wire, 4-20mA Smart Signal Conditioner |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX139C/D | 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 |
| MAX139CMH | 制造商:Maxim Integrated Products 功能描述:44 PINS MQFP PKG - Bulk |
| MAX139CMH+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX139CMH+D | 功能描述:模数转换器 - ADC 3 1/2 Dgt ADC w/Ref CPump LED Drivers 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 |
| MAX139CMH+T | 制造商:Maxim Integrated Products 功能描述:ADC SGL DUAL SLOPE 3 1/2DIGIT LED 44MQFP - Tape and Reel |
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