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| 型号： | MAX1202BEAP+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 8CH 20-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 66 |
| 位数： | 12 |
| 采样率（每秒）： | 133k |
| 数据接口： | MICROWIRE?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 640mW |
| 电压电源： | 双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 管件 |
| 输入数目和类型： | 8 个单端，单极；8 个单端，双极；4 个差分，单极；4 个差分，双极 |
| 产品目录页面： | 1396 (CN2011-ZH PDF) |
MAX1202/MAX1203
5V, 8-Channel, Serial, 12-Bit ADCs
with 3V Digital Interface
______________________________________________________________________________________
19
External and Internal References
The MAX1202 can be used with an internal or external
reference, whereas an external reference is required for
the MAX1203. An external reference can be connected
directly at the REF terminal, or at the REFADJ pin.
An internal buffer is designed to provide 4.096V at
REF for both the MAX1202 and the MAX1203. The
MAX1202’s internally trimmed 2.44V reference is
buffered with a gain of 1.68. The MAX1203’s REFADJ
pin is buffered with a gain of 1.64, to scale an external
2.5V reference at REFADJ to 4.096V at REF.
MAX1202 Internal Reference
The MAX1202’s full-scale range using the internal
reference is 4.096V with unipolar inputs and ±2.048V
with bipolar inputs. The internal reference voltage is
adjustable to ±1.5% with the circuit of Figure 17.
Figure 12b. Timing Diagram for Power-Down Modes, Internal Clock
Figure 12c. Additional IDD Shutdown Supply Current vs. VIH
for Each Digital Input at a Logic 1
Figure 13. MAX1202 FULLPD/FASTPD Power-Up Sequence
FULL
POWER-DOWN
POWERED
UP
POWERED UP
DATA VALID
INTERNAL CLOCK MODE
SX XXXX 10
S
0 0
XX
X
S
MODE
DOUT
DIN
CLOCK
MODE
SETS INTERNAL
CLOCK MODE
SETS FULL
POWER-DOWN
CONVERSION
SSTRB
10 0
DIN
REFADJ
REF
2.5V
0V
4V
0V
10 1
1
11
0 0
10 1
FULLPD
FASTPD
NOPD
FULLPD
FASTPD
2ms WAIT
COMPLETE CONVERSION SEQUENCE
tBUFFEN ≈ 15s
τ = RC = 20k x CREFADJ
(ZEROS)
CH1
CH7
(ZEROS)
0
-60
10
5
TEMPERATURE (°C)
SUPPLY
CURRENT
PER
INPUT
(
A)
100
25
20
15
-20
60
140
40
35
30
20
(VDD - VIH) = 1.95V
(VDD - VIH) = 2.55V
(VDD - VIH) = 2.25V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1202BEAP+ | 功能描述:模数转换器 - ADC 12-Bit 8Ch 133ksps 5V 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 |
| MAX1202BEAP+T | 功能描述:模数转换器 - ADC 12-Bit 8Ch 133ksps 5V 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 |
| MAX1202BEAP-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 |
| MAX1202BEPP | 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 |
| MAX1202BEPP+ | 功能描述:模数转换器 - ADC 12-Bit 8Ch 133ksps 5V 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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