参数资料
型号: MAX1270EVKIT
厂商: Maxim Integrated Products
文件页数: 3/20页
文件大小: 0K
描述: EVALUATION KIT FOR MAX1270
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
ADC 的数量: 1
位数: 12
采样率(每秒): 110k
数据接口: 串行
输入范围: ±10 V
在以下条件下的电源(标准): 30mW @ 110kSPS
工作温度: 0°C ~ 70°C
已用 IC / 零件: MAX1270,MAX1271,MAX127,MAX128
已供物品: 板,CD
MAX1270/MAX1271
Multirange, +5V, 8-Channel,
Serial 12-Bit ADCs
______________________________________________________________________________________
11
Table 1. Control-Byte Format
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
BIT
NAME
DESCRIPTION
7 (MSB)
START
First logic 1 after CS goes low defines the beginning of the control byte.
6, 5, 4
SEL2, SEL1,
SEL0
These 3 bits select the desired “on” channel (Table 2).
3
RNG
Selects the full-scale input voltage range (Table 3).
2
BIP
Selects the unipolar or bipolar conversion mode (Table 3).
1, 0 (LSB)
PD1, PD0
Select clock and power-down modes (Table 4).
Table 2. Channel Selection
SEL2
SEL1
SEL0
CHANNEL
000
CH0
001
CH1
010
CH2
011
CH3
100
CH4
101
CH5
110
CH6
111
CH7
Table 4. Power-Down and Clock Selection
PD1
PD0
MODE
00
Normal operation (always on), internal clock
mode.
01
Normal operation (always on), external clock
mode.
10
Standby power-down mode (STBYPD), clock
mode unaffected.
11
Full power-down mode (FULLPD), clock mode
unaffected.
Table 3. Range and Polarity Selection for MAX1270/MAX1271
RANGE AND POLARITY SELECTION FOR THE MAX1270
INPUT RANGE
RNG
BIP
Negative
FULL SCALE
ZERO
SCALE (V)
FULL SCALE
0 to +5V
0
0
VREF x 1.2207
0 to +10V
1
0
0
VREF x 2.4414
±5V
0
1
-VREF x 1.2207
0
VREF x 1.2207
±10V
1
-VREF x 2.4414
0
VREF x 2.4414
RANGE AND POLARITY SELECTION FOR THE MAX1271
INPUT RANGE
RNG
BIP
Negative
FULL SCALE
ZERO
SCALE (V)
FULL SCALE
0 to VREF/2
0
0
VREF/2
0 to VREF
10
0
VREF
±VREF/2
0
1
-VREF/2
0
VREF/2
±VREF
11
-VREF
0VREF
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