參數(shù)資料
型號: MAX127BENG+
廠商: Maxim Integrated Products
文件頁數(shù): 2/16頁
文件大小: 0K
描述: IC DAS 12BIT 2-WIRE 24-DIP
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 15
類型: 數(shù)據(jù)采集系統(tǒng)(DAS),ADC
分辨率(位): 12 b
采樣率(每秒): 8k
數(shù)據(jù)接口: I²C,串行
電壓電源: 單電源
電源電壓: 4.75 V ~ 5.25 V
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 24-DIP(0.300",7.62mm)
供應商設備封裝: 24-PDIP
包裝: 管件
MAX127/MAX128
Multirange, +5V, 12-Bit DAS with
2-Wire Serial Interface
10
______________________________________________________________________________________
BIT 7
(MSB)
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
(LSB)
START
SEL2
SEL1
SEL0
RNG
BIP
PD1
PD0
Table 1. Control-Byte Format
BIT
NAME
DESCRIPTION
7 (MSB)
START
The logic "1" received after acknowledge of a write bit (R/W = 0) defines the
beginning of the control byte.
6, 5, 4
SEL2, SEL1,
SEL0
These three bits select the desired "ON" channel (Table 2).
3
RNG
Selects the full-scale input voltage range (Table 3).
2
BIP
Selects unipolar or bipolar conversion mode (Table 3).
1, 0 (LSB)
PD1, PD0
These two bits select the power-down modes (Table 4).
SEL2
SEL1
SEL0
CHANNEL
0
CH0
0
1
CH1
0
1
0
CH2
0
1
CH3
1
0
CH4
1
0
1
CH5
1
0
CH6
1
CH7
Table 2. Channel Selection
Table 3. Range and Polarity Selection
INPUT RANGE (V)
RNG
BIP
NEGATIVE FULL
SCALE (V)
ZERO
SCALE (V)
FULL SCALE (V)
0 to 5
0
0
VREF x 1.2207
0 to 10
1
0
0
VREF x 2.4414
±5
0
1
-VREF x 1.2207
0
VREF x 1.2207
±10
1
-VREF x 2.4414
0
VREF x 2.4414
Table 4. Power-Down and Clock
Selection
PD1
PD0
MODE
0
X
Normal Operation (always on)
1
0
Standby Power-Down Mode (STBYPD)
1
Full Power-Down Mode (FULLPD)
0 to VREF
1
0
0
VREF
±VREF/2
0
1
-VREF/2
0
VREF/2
±VREF
1
-VREF
0
VREF
0 to VREF/2
0
0
VREF/2
MAX127
MAX128
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