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| 型号： | MAX191ACWG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 22/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 100KSPS 24-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 位数： | 12 |
| 采样率（每秒）： | 100k |
| 数据接口： | MICROWIRE?，并联，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 941mW |
| 电压电源： | 双 ± |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 2 个单端，单极；2 个单端，双极；1 个差分，单极；1 个差分，双极 |
MAX191
Low-Power, 12-Bit Sampling ADC
with Internal Reference and Power-Down
_______________________________________________________________________________________
7
Pin Description
Clock Input/Serial Clock Input in serial mode. An external TTL-/CMOS-compatible clock may be applied to
this pin, or a capacitor (120pF nominal) may be connected between CLK and DGND to operate the internal
oscillator.
High-Byte Enable Input. In parallel mode, HBEN = high multiplexes the 4 MSBs of the conversion result
into the lower bit outputs. HBEN = high also disables conversion starts. HBEN = low places the 8 LSBs
onto the data bus. In serial mode, HBEN = low enables SCLKOUT to operate during the conversion only,
HBEN = high enables SCLKOUT to operate continuously, provided CS is low.
Chip-Select Input must be low for the ADC to recognize RD and HBEN inputs in parallel mode. The falling
edge of CS starts a conversion in serial mode. CS = high in serial mode forces SCLKOUT, SSTRB, and
DOUT into a high-impedance state.
Read Input. In parallel mode, a low signal starts a conversion when CS and HBEN are low (memory
mode). RD also enables the outputs when CS is low. In serial mode, RD = low enables SCLKOUT and
SSTRB when CS is low. RD = high forces SCLKOUT and SSTRB into a high-impedance state.
D6/SCLKOUT
7
Analog Ground
AGND
24
Positive Supply, +5V ±5%
VDD
23
CLK/SCLK
22
Sets the output mode. PAR = high selects parallel output mode. PAR = low selects serial output mode.
PAR
21
HBEN
20
CS
19
RD
18
Three-State Data Output/Data Output in serial mode
D7/DOUT
13
Three-State Data Outputs
D2/D10
14
Three-State Data Outputs: MSB = D11
D3/D11
15
Three-State Data Output
D4
16
Three-State Data Output/Serial Strobe Output in serial mode
D5/SSTRB
17
Three-State Data Output/Serial Clock Output in serial mode
10
Three-State Data Outputs: LSB = D0
D0/D8
11
Three-State Data Outputs
D1/D9
12
Digital Ground
DGND
Power-Down Input. A logic low at PD deactivates the ADC—only the bandgap reference is active. A logic
high selects normal operation, internal-reference compensation mode. An open-circuit condition selects
normal operation, external-reference compensation mode.
PIN
9
8
6
BUSY Output is low during a conversion.
BUSY
BIP = low selects unipolar mode
BIP = high selects bipolar mode (see
Gain and Offset Adjustment section)
BIP
5
4
3
Reference Adjust. Connect to VDD to use an extended reference at VREF.
REFADJ
Reference-Buffer Output for Internal Reference. Input for external reference when REFADJ is connected to
VDD.
VREF
Analog Input Return. Pseudo-differential (see
Gain and Offset Adjustment section).
AIN-
2
1
Sampled Analog Input
AIN+
Negative Supply, 0V to -5.25V
VSS
PD
FUNCTION
NAME
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX191AENG | 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 |
| MAX191AENG+ | 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 |
| MAX191AEWG | 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 |
| MAX191AEWG+ | 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 |
| MAX191AEWG+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 |
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