- 您現在的位置：買賣IC網 > PDF目錄9457 > MAX188CEPP+ (Maxim Integrated Products)IC ADC 12BIT SERIAL 20-DIP PDF資料下載
參數資料
| 型號： | MAX188CEPP+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 2/25頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT SERIAL 20-DIP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 18 |
| 類型： | 數據采集系統(tǒng)（DAS） |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 133k |
| 數據接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 電壓電源： | 雙 ± |
| 電源電壓： | ±5V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 20-DIP（0.300"，7.62mm） |
| 供應商設備封裝： | 20-PDIP |
| 包裝： | 管件 |
single-ended unipolar conversions on CH7 in external
clock mode without powering down between conver-
sions. In external clock mode, the SSTRB output pulses
high for one clock period before the most significant bit
of the 12-bit conversion result comes out of DOUT.
Varying the analog input to CH7 should alter the
sequence of bits from DOUT. A total of 15 clock cycles
is required per conversion. All transitions of the SSTRB
and DOUT outputs occur on the falling edge of SCLK.
How to Start a Conversion
A conversion is started on the MAX186/MAX188 by
clocking a control byte into DIN. Each rising edge on
SCLK, with CS low, clocks a bit from DIN into the
MAX186/MAX188’s internal shift register. After CS falls,
the first arriving logic “1” bit defines the MSB of the
control byte. Until this first “start” bit arrives, any num-
ber of logic “0” bits can be clocked into DIN with no
effect. Table 2 shows the control-byte format.
The MAX186/MAX188 are fully compatible with
Microwire and SPI devices. For SPI, select the correct
clock polarity and sampling edge in the SPI control reg-
isters: set CPOL = 0 and CPHA = 0. Microwire and SPI
both transmit a byte and receive a byte at the same
time. Using the
Typical Operating Circuit, the simplest
software interface requires only three 8-bit transfers to
perform a conversion (one 8-bit transfer to configure
the ADC, and two more 8-bit transfers to clock out the
12-bit conversion result).
Example: Simple Software Interface
Make sure the CPU’s serial interface runs in master
mode so the CPU generates the serial clock. Choose a
clock frequency from 100kHz to 2MHz.
1) Set up the control byte for external clock mode, call
it TB1. TB1 should be of the format: 1XXXXX11
Binary, where the Xs denote the particular channel
and conversion-mode selected.
Low-Power, 8-Channel,
Serial 12-Bit ADCs
10
Maxim Integrated
MAX186/MAX188
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(MSB)
(LSB)
START
SEL2
SEL1
SEL0
UNI/BIP
SGL/DIF
PD1
PD0
Bit
Name
Description
7(MSB)
START
The first logic “1” bit after CS goes low defines the beginning of the control byte.
6
SEL2
These three bits select which of the eight channels are used for the conversion.
5
SEL1
See Tables 3 and 4.
4
SEL0
3
UNI/BIP
1 = unipolar, 0 = bipolar. Selects unipolar or bipolar conversion mode. In unipolar
mode, an analog input signal from 0V to VREF can be converted; in bipolar mode, the
signal can range from -VREF/2 to +VREF/2.
2
SGL/DIF
1 = single ended, 0 = differential. Selects single-ended or differential conversions. In
single-ended mode, input signal voltages are referred to AGND. In differential mode,
the voltage difference between two channels is measured. See Tables 3 and 4.
1
PD1
Selects clock and power-down modes.
0(LSB)
PD0
PD1
PD0
Mode
00
Full power-down (IQ = 2A)
01
Fast power-down (IQ = 30A)
10
Internal clock mode
1
External clock mode
Table 2. Control-Byte Format
相關PDF資料 |
PDF描述 |
|---|---|
| MC100EL1648DTR2G | IC OSC VCO 1.1GHZ 8TSSOP |
| MAX161CEWI+T | IC DAS 8BIT 8-CH 20US 28-SOIC |
| M83723/75W14156 | CONN PLUG 15POS STRAIGHT W/SCKT |
| MAX180BEQH+TD | IC DAS 12BIT 100KSPS 44-PLCC |
| MC100EL1648DR2G | IC OSC VCO 1.1GHZ 8SOIC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX188CEPP+ | 功能描述:模數轉換器 - ADC 12-Bit 8Ch 133ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX188CEWP | 功能描述:模數轉換器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX188CEWP/GH9 | 功能描述:模數轉換器 - ADC Low-Power 8-Channel Serial 12-Bit ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX188CEWP+ | 功能描述:模數轉換器 - ADC 12-Bit 8Ch 133ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX188CEWP+T | 功能描述:模數轉換器 - ADC 12-Bit 8Ch 133ksps 5.25V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
發(fā)布緊急采購，3分鐘左右您將得到回復。