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參數(shù)資料
| 型號： | MAX11604EEE+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/23頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC SERIAL 8BIT 12CH 16-QSOP |
| 產(chǎn)品培訓模塊： | MAX116xx Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 100 |
| 位數(shù)： | 8 |
| 采樣率（每秒）： | 188k |
| 數(shù)據(jù)接口： | I²C，串行 |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 1.75mW |
| 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 個單端，單極；12 個單端，雙極；6 個差分，單極；6 個差分，雙極 |
| 產(chǎn)品目錄頁面： | 1398 (CN2011-ZH PDF) |
MAX11600–MAX11605
Applications Information
Power-On Reset
The configuration and setup registers (Tables 1 and 2)
default to a single-ended, unipolar, single-channel con-
version on AIN0 using the internal clock with VDD as the
reference and AIN_/REF (MAX11600/MAX11601/
MAX11604/MAX11605) configured as an analog input.
For the MAX11602/MAX11603, the REF pin is floating
after power-up. The RAM contents are unknown after
power-up.
Automatic Shutdown
SEL[2:0] of the setup byte (Tables 1 and 6) controls the
state of the reference and AIN_/REF (MAX11600/
MAX11601/MAX11604/MAX11605) or REF (MAX11602/
MAX11603). If automatic shutdown is selected (SEL[2:0] =
100), shutdown occurs between conversions when the
MAX11600–MAX11605 are idle. When operating in exter-
nal clock mode, a STOP condition must be issued to place
the devices in idle mode and benefit from automatic shut-
down. A STOP condition is not necessary in internal clock
mode to benefit from automatic shutdown because power-
down occurs once all contents are written to memory
(Figure 10). All analog circuitry is inactive in shutdown and
supply current is less than 1A. The digital conversion
results are maintained in RAM during shutdown and are
available for access through the serial interface at any
time prior to a STOP or repeated START condition.
When idle, the MAX11600–MAX11605 wait for a START
condition followed by their slave address (see the
Slave Address section). Upon reading a valid address
byte, the MAX11600–MAX11605 power up. The analog
circuits do not require any wakeup time from shutdown,
whether using external or internal reference.
Automatic shutdown results in dramatic power savings,
particularly at slow conversion rates. For example, at a
conversion rate of 10ksps, the average supply current
for the MAX1036 is 8A and drops to 2A at 1ksps.
At 0.1ksps the average supply current is just 1A (see
Average Supply Current vs. Conversion Rate in the
Typical Operating Characteristics section).
Reference Voltage
SEL[2:0] of the setup byte (Table 1) controls the refer-
ence and the AIN_/REF (MAX11600/MAX11601/
MAX11604/MAX11605) or REF (MAX11602/MAX11603)
configuration (Table 6). When AIN_/REF (MAX11600/
MAX11601/MAX11604/MAX11605) is configured to be
a reference input or reference output (SEL1 = 1), con-
versions on AIN_/REF appear as if AIN_/REF is con-
nected to GND (see note 2 of Tables 3 and 4).
Internal Reference
The internal reference is 4.096V for the MAX11600/
MAX11602/MAX11604 and 2.048V for the MAX11601/
MAX11603/MAX11605. SEL1 of the setup byte controls
whether AIN_/REF (MAX11600/MAX11601/MAX11604/
MAX11605) is used for an analog input or a reference
(Table 6). When AIN_/REF (MAX11600/MAX11601/
MAX11604/MAX11605) or REF (MAX11602/MAX11603) is
configured to be an internal reference output (SEL[2:1] =
11), decouple AIN_/REF (MAX11600/MAX11601/
MAX11604/MAX11605) or REF (MAX11602/MAX11603)
to GND with a 0.01F capacitor. Due to the decoupling
capacitor and the 675
reference source impedance,
allow 80s for the reference to stabilize during initial
power-up. Once powered up, the reference always
remains on until reconfigured. The reference should not
be used to supply current for external circuitry. When the
MAX11602/MAX11603 is in shutdown, the internal refer-
ence output is in a high-impedance state.
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs
______________________________________________________________________________________
15
BIT 7
(MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
(LSB)
REG
SCAN1
SCAN0
CS3
CS2
CS1
CS0
SGL/
DIF
BIT
NAME
DESCRIPTION
7
REG
Register bit. 1 = setup byte (Table 1), 0 = configuration byte.
6
SCAN1
5
SCAN0
Scan select bits. Two bits select the scanning configuration (Table 5). Default to 00 at
power-up.
4
CS3
3
CS2
2
CS1
1
CS0
Channel select bits. Four bits select which analog input channels are to be used for conversion
(Tables 3 and 4). Default to 0000 at power-up. For the MAX11600/MAX11601, CS3 and CS2 are
internally set to 0. For the MAX11602/MAX11603, CS3 is internally set to zero.
0SGL/
DIF
1 = single-ended, 0 = pseudo-differential (Tables 3 and 4). Default to 1 at power-up (see the
Single-Ended/Pseudo-Differential Input section).
Table 2. Configuration Byte Format
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11604EEE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 12Ch 188ksps 5.5V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX11604EEE+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 12Ch 188ksps 5.5V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX11605 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:2.7V to 3.6V and 4.5V to 5.5V, Low-Power, 4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs |
| MAX11605EEE/V+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 2.7V to 3.6V Low-Power 12-Channel 2-Wire Serial 8-Bit ADCs 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX11605EEE/V+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 2.7V to 3.6V Low-Power 12-Channel 2-Wire Serial 8-Bit ADCs 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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