參數(shù)資料
型號(hào)： MAX1139KEEE+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 5/22頁(yè)
文件大?。?/td> 0K
描述： IC ADC 10BIT SERIAL 16-QSOP
標(biāo)準(zhǔn)包裝： 100
位數(shù)： 10
采樣率（每秒）： 94.4k
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 2mW
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： 16-SSOP（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-QSOP
包裝： 管件
輸入數(shù)目和類型： 12 個(gè)單端，單極；12 個(gè)單端，雙極；6 個(gè)差分，單極；6 個(gè)差分，雙極
Configuration/Setup Bytes (Write Cycle)
A write cycle begins with the bus master issuing a
START condition followed by seven address bits (Figure
7) and a write bit (R/W = 0). If the address byte is suc-
cessfully received, the MAX1136–MAX1139 (slave)
issues an acknowledge. The master then writes to the
slave. The slave recognizes the received byte as the
setup byte (Table 1) if the most significant bit (MSB) is
1. If the MSB is 0, the slave recognizes that byte as the
configuration byte (Table 2). The master can write either
one or two bytes to the slave in any order (setup byte
then configuration byte; configuration byte then setup
byte; setup byte or configuration byte only; Figure 9). If
the slave receives a byte successfully, it issues an
acknowledge. The master ends the write cycle by issu-
ing a STOP condition or a repeated START condition.
When operating in HS-mode, a STOP condition returns
the bus into F/S-mode (see the
HS-Mode section).
MAX1136–MAX1139
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/12-Channel, 2-Wire Serial 10-Bit ADCs
______________________________________________________________________________________
13
B. TWO-BYTE WRITE CYCLE
SLAVE TO MASTER
MASTER TO SLAVE
S
1
SLAVE ADDRESS
A
71 1
W
SETUP OR
CONFIGURATION BYTE
SETUP OR
CONFIGURATION BYTE
8
P or Sr
1
A
1
MSB DETERMINES WHETHER
SETUP OR CONFIGURATION BYTE
S
1
SLAVE ADDRESS
A
71 1
W
SETUP OR
CONFIGURATION BYTE
8
P or Sr
1
A
1
MSB DETERMINES WHETHER
SETUP OR CONFIGURATION BYTE
A
1
8
A. ONE- BYTE WRITE CYCLE
NUMBER OF BITS
Figure 9. Write Cycle
BIT 7
(MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
(LSB)
REG
SEL2
SEL1
SEL0
CLK
BIP/UNI
RST
X
BIT
NAME
DESCRIPTION
7
REG
Register bit. 1 = setup byte, 0 = configuration byte (see Table 2).
6
SEL2
5
SEL1
4
SEL0
Three bits select the reference voltage and the state of AIN_/REF (Table 6). Defaulted to 000 at
power-up.
3
CLK
1 = external clock, 0 = internal clock. Defaulted to 0 at power-up.
2
BIP/UNI
1 = bipolar, 0 = unipolar. Defaulted to 0 at power-up.
1
RST
1 = no action, 0 = resets the configuration register to default. Setup register remains unchanged.
0
X
Don’t care, can be set to 1 or 0.
Table 1. Setup Byte Format
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參數(shù)描述
MAX1139KEEE+ 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
MAX1139KEEE+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
MAX1139KEEE-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
MAX1139LEEE 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
MAX1139LEEE+ 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
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