The external reference can range from 1.0V to VDD." />
參數(shù)資料
型號(hào)： MAX11605EEE+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 11/23頁(yè)
文件大?。?/td> 0K
描述： IC ADC SERIAL 8BIT 12CH 16-QSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
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： 帶卷 (TR)
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
MAX11600–MAX11605
External Reference
The external reference can range from 1.0V to VDD. For
maximum conversion accuracy, the reference must be
able to deliver up to 30A and have an output impedance
of 1k
or less. If the reference has a higher output imped-
ance or is noisy, bypass it to GND as close as possible to
AIN_/REF (MAX11600/MAX11601/MAX11604/MAX11605)
or REF (MAX11602/MAX11603) with a 0.1F capacitor.
Transfer Functions
Output data coding for the MAX11600–MAX11605 is
binary in unipolar mode and two’s complement binary in
bipolar mode with 1 LSB = VREF/2N where N is the num-
ber of bits (8). Code transitions occur halfway between
successive-integer LSB values. Figures 12 and 13 show
the input/output (I/O) transfer functions for unipolar and
bipolar operations, respectively.
SCAN1
SCAN0
SCANNING CONFIGURATION
0
Scans up from AIN0 to the input selected by CS3–CS0 (default setting).
0
1
Converts the input selected by CS3–CS0 eight times.*
MAX11600/MAX11601: Scans upper half of channels.
Scans up from AIN2 to the input selected by CS1 and CS0. When CS1 and CS0 are set for AIN0, AIN1, and
AIN2, the scanning stops at AIN2 (MAX11600/MAX11601).
MAX11602/MAX11603: Scans upper quartile of channels.
Scans up from AIN6 to the input selected by CS3–CS0. When CS3–CS0 is set for AIN0–AIN6, the scanning
stops at AIN6 (MAX11602/MAX11603).
10
MAX11604/MAX11605: Scans upper half of channels.
Scans up from AIN6 to the input selected by CS3–CS0. When CS3–CS0 is set for AIN0–AIN6, the scanning
stops at AIN6 (MAX11604/MAX11605).
1
Converts the channel selected by CS3–CS0.*
Table 5. Scanning Configuration
*
When operating in external clock mode, there is no difference between SCAN[1:0] = 01 and SCAN[1:0] = 11 and converting continues
until a not acknowledge occurs.
SEL2
SEL1
SEL0
REFERENCE
VOLTAGE
AIN_/REF
(MAX11600/
MAX11601/
MAX11604/
MAX11605)
REF
(MAX11602/
MAX11603)
INTERNAL
REFERENCE STATE
00
X
VDD
Analog input
Not connected
Always off
0
1
X
External reference
Reference input
Always off
1
0
Internal reference
Analog input
Not connected
AutoShutdown
1
0
1
Internal reference
Analog input
Not connected
Always on
1
X
Internal reference
Reference output
Always on
Table 6. Reference Voltage, AIN_/REF, and REF Format
X = Don’t care.
2.7V to 3.6V and 4.5V to 5.5V, Low-Power,
4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs
______________________________________________________________________________________
19
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