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参数资料
| 型号： | MAX1189ACUI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/15页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 135KSPS 28-TSSOP |
| 标准包装： | 2,500 |
| 位数： | 16 |
| 采样率（每秒）： | 135k |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 1.03W |
| 电压电源： | 模拟和数字 |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个单端，双极 |
Detailed Description
Converter Operation
The MAX1179/MAX1187/MAX1189 use a successive-
approximation (SAR) conversion technique with an
inherent track-and-hold (T/H) stage to convert an ana-
log input into a 16-bit digital output. Parallel outputs
provide a high-speed interface to microprocessors
(Ps). The Functional Diagram at the end of the data
sheet shows a simplified internal architecture of the
MAX1179/MAX1187/MAX1189. Figure 3 shows a typical
application circuit for the MAX1179/MAX1187/MAX1189.
Analog Input
Input Scaler
The MAX1179/MAX1187/MAX1189 have an input scaler
which allows conversion of true bipolar input voltages
and input voltages greater than the power supply, while
operating from a single +5V analog supply. The input
scaler attenuates and shifts the analog input to match
the input range of the internal DAC. The MAX1179 input
voltage range is ±5V, while the MAX1189 input voltage
range is ±10V. The MAX1187 has a unipolar input volt-
age range of 0 to +10V. Figure 4 shows the equivalent
input circuit of the MAX1179/MAX1187/MAX1189. This
circuit limits the current going into or out of AIN to less
than 1.8mA.
MAX1179/MAX1187/MAX1189
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
_______________________________________________________________________________________
7
Pin Description (continued)
PIN
NAME
FUNCTION
15
REFADJ
Reference Buffer Output. Bypass REFADJ with a 0.1F capacitor to AGND for internal reference
mode. Connect REFADJ to AVDD to select external reference mode.
16
REF
Reference Input/Output. Bypass REF with a 10F capacitor to AGND. REF is the external reference
input when in external reference mode.
17
RESET
Reset Input. Logic high resets the device.
18
CS
Convert Start. The first falling edge of CS powers up the device and enables acquisition when R/C
is low. The second falling edge of CS starts conversion. The third falling edge of CS loads the result
onto the bus when R/C is high.
19
DGND
Digital Ground
20
DVDD
Digital Supply Voltage. Bypass with a 0.1F capacitor to DGND.
21
D0
Three-State Digital Data Output (LSB)
22
D1
Three-State Digital Data Output
23
D2
Three-State Digital Data Output
24
D3
Three-State Digital Data Output
25
D4
Three-State Digital Data Output
26
D5
Three-State Digital Data Output
27
D6
Three-State Digital Data Output
28
D7
Three-State Digital Data Output
Figure 1. Load Circuits
1mA
DGND
HIGH-Z TO VOH,
VOL TO VOH, AND
VOH TO HIGH-Z
CLOAD = 20pF
D0–D15
A)
1mA
DVDD
DGND
HIGH-Z TO VOL,
VOH TO VOL, AND
VOL TO HIGH-Z
CLOAD = 20pF
D0–D15
B)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1189AEUI | 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 |
| MAX1189AEUI+ | 功能描述:模数转换器 - ADC 16-Bit 135ksps 4.2V 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 |
| MAX1189AEUI+T | 功能描述:模数转换器 - ADC 16-Bit 135ksps 4.2V 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 |
| MAX1189AEUI-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 |
| MAX1189BCUI | 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 |
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