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参数资料
| 型号： | MAX11056ECB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT PAR 250KSPS 64TQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 750 |
| 位数： | 14 |
| 采样率（每秒）： | 250k |
| 数据接口： | 并联 |
| 转换器数目： | 8 |
| 功率耗散（最大）： | 3.48W |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-TQFP 裸露焊盘 |
| 供应商设备封装： | 64-TQFP-EP（10x10） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 8 个单端，双极 |
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4-/6-/8-Channel, 16-/14-Bit,
Simultaneous-Sampling ADCs
16
Maxim Integrated
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B/MAX11054/MAX11055/MAX11056
an internal bandgap reference circuit (VREFIO =
4.096V). Drive REFIO with an external reference or
bypass with 0.1μF capacitor to ground when using the
internal reference.
Analog Inputs
Track and Hold (T/H)
To preserve phase information across all channels,
each input includes a dedicated T/H circuitry. The input
tracking circuitry provides a 4MHz small-signal band-
width, enabling the device to digitize high-speed tran-
sient events and measure periodic signals with
bandwidths exceeding the ADC’s sampling rate by
using undersampling techniques. Use anti-alias filtering
to avoid high-frequency signals being aliased into the
frequency band of interest.
Input Range and Protection
The full-scale analog input voltage is a product of the ref-
erence voltage. For the MAX11044/MAX11044B/
MAX11045/MAX11045B/MAX11046/MAX11046B and
MAX11054/MAX11055/MAX11056, the full-scale input is
bipolar in the range of:
When in external reference mode, drive VREFIO with a
3.0V to 4.25V source, resulting in an input range of
±3.662V to ±5.188V, respectively.
All analog inputs are fault-protected to up to ±20mA. The
MAX11044/MAX11044B/MAX11045/MAX11045B/
MAX11046/MAX11046B and MAX11054/MAX11055/
MAX11056 include an input clamping circuit that acti-
vates when the input voltage at the analog input is
above (VAVDD + 300mV) or below –(VAVDD + 300mV).
The clamp circuit remains high impedance while the
input signal is within the range of ±VAVDD and draws lit-
tle or almost no current. However, when the input signal
exceeds ±VAVDD, the clamps begin to turn on and
shunt current to/from the AVDD supply. Consequently,
to obtain the highest accuracy, ensure that the input
voltage does not exceed ±(VAVDD + 0.3V).
To make use of the input clamps (see Figure 1), con-
nect a resistor (RS) between the analog input and the
voltage source to limit the voltage at the analog input so
that the fault current into the MAX11044/MAX11044B/
MAX11045/MAX11045B/MAX11046/MAX11046B and
MAX11054/MAX11055/MAX11056 does not exceed
±20mA. Note that the voltage at the analog input pin limits
to approximately 7V during a fault condition so the follow-
ing equation can be used to calculate the value of RS:
±(
.
)
Vx
REFIO
5
4 096
MAX11044/MAX11044B/
MAX11045/MAX11045B/
MAX11046/MAX11046B
MAX11054/MAX11055/MAX11056
CLAMP
S/H
16-/14-BIT ADC
CLAMP
S/H
16-/14-BIT ADC
REF
BUF
CONFIGURATION
REGISTERS
INTERFACE
AND
CONTROL
BANDGAP
REFERENCE
8x
16-/1
4-BIT
REGISTERS
BIDIRECTIONAL
DRIVERS
CH0
SOURCE
AVDD
AGNDS
*CONNECTED INTERNALLY ON THE TQFN PARTS TO RDC
**MAX11044/MAX11045/MAX11046
MAX11046/MAX11056
AGND
CH7
DB15**
DB0/CR0
DB3/CR3
DB4
EOC
SHDN
CONVST
CS
RD
WR
DGND
DVDD
RDC
RDC_SENSE*
REFIO
INT REF
10k
Ω
EXT REF
RS
INPUT
SIGNAL
PIN
VOLTAGE
Figure 1. Required Setup for Clamp Circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX11057ECB+ | 功能描述:模数转换器 - ADC 14Bit 4Ch Simult Sampling 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 |
| MAX11057ECB+T | 功能描述:模数转换器 - ADC 14Bit 4Ch Simult Sampling 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 |
| MAX11058ECB+ | 功能描述:模数转换器 - ADC 14Bit 6Ch Simult Sampling 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 |
| MAX11058ECB+T | 功能描述:模数转换器 - ADC 14Bit 6Ch Simult Sampling 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 |
| MAX11059ECB+ | 功能描述:模数转换器 - ADC 14Bit 8Ch Simult Sampling 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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