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参数资料
| 型号： | MAX1293AEEG |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | ADC |
| 英文描述： | 250ksps, +3V, 8-/4-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface |
| 中文描述： | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24 |
| 封装： | 0.150 INCH, QSOP-24 |
| 文件页数： | 8/20页 |
| 文件大小： | 224K |
| 代理商： | MAX1293AEEG |
M
250ksps, +3V, 8-/4-Channel, 12-Bit ADCs
with +2.5V Reference and Parallel Interface
8
_______________________________________________________________________________________
Pin Description
NAME
1
HBEN
High Byte Enable. Used to multiplex the 12-bit conversion result.
1: Four MSBs are multiplexed on the data bus.
0: Eight LSBs are available on the data bus.
2
3
4
5
6
7
8
9
10
D7
D6
D5
D4
Three-State Digital I/O Line (D7)
Three-State Digital I/O Line (D6)
Three-State Digital I/O Line (D5)
Three-State Digital I/O Line (D4)
Three-State Digital I/O Line (D3, HBEN = 0; D11, HBEN = 1)
Three-State Digital I/O Line (D2, HBEN = 0; D10, HBEN = 1)
Three-State Digital I/O Line (D1, HBEN = 0; D9, HBEN = 1)
Three-State Digital I/O Line (D0, HBEN = 0; D8, HBEN = 1
INT
goes low when the conversion is complete and the output data is ready.
D3/D11
D2/D10
D1/D9
D0/D8
INT
11
RD
Active-Low Read Select. If
CS
is low, a falling edge on
RD
will enable the read operation
on the data bus.
12
WR
Active-Low Write Select. When
CS
is low in internal acquisition mode, a rising edge on
WR
latches in configuration data and starts an acquisition plus a conversion cycle. When
CS
is
low in external acquisition mode, the first rising edge on
WR
ends acquisition and starts a
conversion.
13
CLK
Clock Input. In external clock mode, drive CLK with a TTL/CMOS-compatible clock. In
internal clock mode, connect this pin to either V
DD
or GND.
14
CS
Active-Low Chip Select. When
CS
is high, digital outputs (
INT
, D7–D0) are high imped-
ance.
Analog Input Channel 7
Analog Input Channel 6
Analog Input Channel 5
Analog Input Channel 4
Analog Input Channel 3
Analog Input Channel 2
Analog Input Channel 1
Analog Input Channel 0
15
16
17
18
19
20
21
22
CH7
CH6
CH5
CH4
CH3
CH2
CH1
CH0
23
COM
Ground Reference for Analog Inputs. Sets zero-code voltage in single-ended mode and
must be stable to ±0.5LSB during conversion.
24
GND
Analog and Digital Ground
Bandgap Reference Output/Bandgap Reference Buffer Input. Bypass to GND with a
0.01μF capacitor. When using an external reference, connect REFADJ to V
DD
to disable
the internal bandgap reference.
25
REFADJ
26
REF
Bandgap Reference Buffer Output/External Reference Input. Add a 4.7μF capacitor to
GND when using the internal reference.
27
V
DD
Analog +5V Power Supply. Bypass with a 0.1μF capacitor to GND.
28
V
LOGIC
Digital Power Supply. V
LOGIC
powers the digital outputs of the data converter and can
range from +1.8V to V
DD
+ 300mV.
1
2
3
4
5
6
7
8
9
10
PIN
11
12
13
14
—
—
—
—
15
16
17
18
19
20
21
22
23
24
FUNCTION
MAX1291
MAX1293
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1293AEEG+ | 功能描述:模数转换器 - ADC 12-Bit 4Ch 250ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1293AEEG+T | 功能描述:模数转换器 - ADC 12-Bit 4Ch 250ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1293AEEG-T | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1293BCEG | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MAX1293BCEG+ | 功能描述:模数转换器 - ADC 12-Bit 4Ch 250ksps 3.6V Precision ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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