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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： | 18/19页 |
| 文件大小： | 1037K |
| 代理商： | MAX1396MUB+T |
MAX1393/MAX1396
Detailed Description
The MAX1393/MAX1396 use an input track and hold
(T/H) circuit along with a SAR to convert an analog input
signal to a serial 12-bit digital output data stream. The
serial interface provides easy interfacing to microproces-
sors and DSPs. Figure 3 shows the simplified functional
diagram for the MAX1393 (1 channel, true differential)
and the MAX1396 (2 channels, single ended).
True-Differential Analog Input T/H
The equivalent input circuit of Figure 4 shows the
MAX1393/MAX1396 input architecture, which is com-
posed of a T/H, a comparator, and a switched-capacitor
DAC. The T/H enters its tracking mode on the falling
edge of CS (while OE is held low). The positive input
capacitor is connected to AIN+ (MAX1393), or to AIN1 or
AIN2 (MAX1396). The negative input capacitor is con-
nected to AIN- (MAX1393) or GND (MAX1396). The T/H
enters its hold mode on the 3rd falling edge of SCLK
8
_______________________________________________________________________________________
1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 12-Bit, SAR ADCs
PIN
MAX1393
MAX1396
NAME
FUNCTION
11
VDD
Positive Supply Voltage. Connect VDD to a 1.5V to 3.6V power supply. Bypass VDD to GND
with a 0.1F capacitor as close to the device as possible.
2—
AIN-
Negative Analog Input
—2
AIN2
Analog Input Channel 2
3—
AIN+
Positive Analog Input
—3
AIN1
Analog Input Channel 1
44
GND
Ground
55
REF
External Reference Voltage Input. VREF = 0.6V to (VDD + 0.05V). Bypass REF to GND with a
0.1F capacitor as close to the device as possible.
6—
UNI/BIP
Input-Mode Select. Drive UNI/BIP high to select unipolar input mode. Pull UNI/BIP low to
select bipolar input mode. In unipolar mode, the output data is in straight binary format. In
bipolar mode, the output data is in two’s complement format.
—6
CH1/CH2
Channel-Select Input. Pull CH1/CH2 low to select channel 1. Drive CH1/CH2 high to select
channel 2.
77
OE
Active-Low Output Enable. Pull OE low to enable DOUT. Drive OE high to disable DOUT.
Connect to CS to interface with SPI, QSPI, and MICROWIRE devices or set low to interface
with DSP devices.
88
CS
Active-Low Chip-Select Input. A falling edge on CS initiates power-up and acquisition.
99
DOUT
Serial-Data Output. DOUT changes state on the falling edge of SCLK. DOUT is high
impedance when OE is high.
10
SCLK
Serial-Clock Input. SCLK drives the conversion process and clocks data out. Acquisition ends
on the 3rd falling edge after the CS falling edge. The LSB is clocked out on the SCLK 15th
falling edge and the device enters AutoShutdown mode (see Figures 8 , 9, and 10).
——
EP
Exposed Pad. Not internally connected. Connect the exposed pad to GND or leave floating.
Pin Description
DOUT
VDD
REF
12-BIT SAR
ADC
CS
SCLK
OE
GND
OUTPUT
SHIFT
REGISTER
CONTROL
LOGIC AND
TIMING
*INDICATES THE MAX1396
AIN+ (AIN1)*
AIN- (AIN2)*
INPUT
MUX
AND T/H
UNI/BIP
(CH1/CH2)*
MAX1393
MAX1396
Figure 3. Simplified Functional 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 |
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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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