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参数资料
| 型号： | MAX1282EVKIT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/23页 |
| 文件大小： | 0K |
| 描述： | EVAL KIT FOR MAX1282 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 400k |
| 数据接口： | 串行 |
| 输入范围： | ±VREF/2 |
| 在以下条件下的电源（标准）： | 13.75mW @ 400kSPS |
| 工作温度： | 0°C ~ 70°C |
| 已用 IC / 零件： | MAX1282 |
| 已供物品： | 板，CD |
MAX1282/MAX1283
Using Fast Power-Down
and Reduced-Power Modes
FASTPD and REDP modes achieve the lowest power
consumption at speeds close to the maximum sampling
rate. Figure 10 shows the MAX1283’s power
consumption in FASTPD mode (PD1 = 0, PD0 = 1),
REDP mode (PD1 = 1, PD0 = 0), and, for comparison,
normal operating mode (PD1 = 1, PD0 = 1). The figure
shows power consumption using the specified power-
down mode, with the internal reference and conversion
controlled at the maximum clock speed. The clock
speed in FASTPD or REDP should be limited to 4.8MHz
for the MAX1282/MAX1283. FULLPD mode may provide
increased power savings in applications where the
MAX1282/MAX1283 are inactive for long periods of time,
but intermittent bursts of high-speed conversions are
required. Figure 11b shows FASTPD and REDP timing.
Internal and External References
The MAX1282/MAX1283 can be used with an internal
or external reference voltage. An external reference
can be connected directly at REF or at the REFADJ pin.
An internal buffer is designed to provide 2.5V at
REF for the MAX1282/MAX1283. The internally trimmed
1.22V reference is buffered with a 2.05 gain.
Internal Reference
The MAX1282/MAX1283’s full-scale range with the inter-
nal reference is 2.5V with unipolar inputs and ±1.25V
with bipolar inputs. The internal reference voltage is
adjustable by ±100mV with the circuit in Figure 12.
External Reference
The MAX1282/MAX1283’s external reference can be
placed at the input (REFADJ) or the output (REF) of the
internal reference-buffer amplifier. The REFADJ input
impedance is typically 17k. At REF, the DC input
resistance is a minimum of 18k. During conversion, an
external reference at REF must deliver up to 350A DC
load current and have 10 or less output impedance. If
the reference has a higher output impedance or is
noisy, bypass it close to the REF pin with a 4.7F
capacitor.
300ksps/400ksps, Single-Supply, 4-Channel,
Serial 12-Bit ADCs with Internal Reference
16
______________________________________________________________________________________
SCLK
DIN
DOUT
SSTRB
tCSS
tCH
tCSO
tCL
tDH
tDOE
tDS
tSTE
tCSW
tCP
tCSH
tCS1
tSTD
tDOD
tDOV
tDOH
tSTV
tSTH
CS
#10
Figure 6. Detailed Serial-Interface Timing
UNIPOLAR MODE
BIPOLAR MODE
Full Scale
Zero Scale
Positive
Zero
Negative
Full Scale
Scale
Full Scale
Table 5. Full Scale and Zero Scale
VREF + VCOM
VREF / 2
+ VCOM
VREF / 2
+ VCOM
VCOM
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1283ACEE | 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 |
| MAX1283AEEE | 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 |
| MAX1283BCUE | 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 |
| MAX1283BCUE+ | 功能描述:模数转换器 - ADC 12-Bit 4Ch 300ksps 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 |
| MAX1283BCUE+T | 功能描述:模数转换器 - ADC 12-Bit 4Ch 300ksps 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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