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參數(shù)資料
| 型號： | MAX1394ETB+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 17/18頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 8BIT 416KSPS 10-TDFN-EP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 416k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 1.48W |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-WFDFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 10-TDFN-EP（3x3） |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 輸入數(shù)目和類型： | 2 個單端，單極；2 個單端，雙極；1 個差分，單極；1 個差分，雙極 |
| 產(chǎn)品目錄頁面： | 1396 (CN2011-ZH PDF) |
| 其它名稱： | MAX1394ETB+TDKR |
MAX1391/MAX1394
Detailed Description
The MAX1391/MAX1394 use an input track and hold
(T/H) circuit along with a SAR to convert an analog input
signal to a serial 8-bit digital output data stream. The seri-
al interface provides easy interfacing to microprocessors
and DSPs. Figure 3 shows the simplified functional dia-
gram for the MAX1391 (1 channel, true differential) and
the MAX1394 (2 channels, single ended).
True-Differential Analog Input T/H
The equivalent input circuit of Figure 4 shows the
MAX1391/MAX1394 input architecture that is composed
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+ (MAX1391), or to AIN1 or AIN2
(MAX1394). The negative input capacitor is connected to
AIN- (MAX1391) or GND (MAX1394). The T/H enters its
hold mode on the 3rd falling edge of SCLK and the dif-
8
_______________________________________________________________________________________
1.5V to 3.6V, 416ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 8-Bit, SAR ADCs
PIN
MAX1391
MAX1394
NAME
FUNCTION
11
VDD
Positive Supply Voltage. Connect VDD to a 1.6V to 3.6V power supply. Bypass VDD to GND
with a 0.1F capacitor as close as possible to the device.
2
—
AIN-
Negative Analog Input
—
2
AIN2
Analog Input Channel 2
3
—
AIN+
Positive Analog Input
—
3
AIN1
Analog Input Channel 1
4
GND
Ground
5
REF
External Reference Voltage Input. VREF = 0.6V to (VDD + 0.05V). Bypass REF to GND with a
0.1F capacitor as close as possible to the device.
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.
9
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 11th
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
8-BIT SAR
ADC
CS
SCLK
OE
GND
OUTPUT
SHIFT
REGISTER
CONTROL
LOGIC AND
TIMING
*INDICATES THE MAX1394
AIN+ (AIN1)*
AIN- (AIN2)*
INPUT
MUX
AND T/H
UNI/BIP
(CH1/CH2)*
MAX1391
MAX1394
Figure 3. Simplified Functional Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1394MTB+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 2Ch 400ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1394MTB-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX1395ETB | 制造商:Maxim Integrated Products 功能描述:1.5V-3.6V357KSPS1-CHANNEL TRUE-DI - Rail/Tube |
| MAX1395ETB+ | 制造商:Maxim Integrated Products 功能描述:ADC SGL SAR 357KSPS 10-BIT SERL 10TDFN EP - Rail/Tube |
| MAX1395ETB+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 2Ch 357ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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