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参数资料
| 型号： | MAX5138BGTE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/17页 |
| 文件大小： | 0K |
| 描述： | IC DAC V-OUT 16BIT 1CH 16-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 设置时间： | 5µs |
| 位数： | 16 |
| 数据接口： | DSP，I²C，MICROWIRE?，并行，QSPI?，SPI? |
| 转换器数目： | 1 |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN（3x3） |
| 包装： | 带卷 (TR) |
| 输出数目和类型： | 1 电压，单极；1 电压，双极 |
| 采样率（每秒）： | * |
Applications Information
Power-On Reset (POR)
On power-up, the input register is set to zero, and the
DAC output powers up to zero or midscale, depending
on the configuration of M/Z. Connect M/Z to AGND to
power the output to AGND. Connect M/Z to AVDD to
power the output to midscale.
To guarantee DAC linearity, wait until the supplies have
settled. Set the LIN bit in the DAC linearity register; wait
10ms, and clear the LIN bit.
Unipolar Output
The MAX5138/MAX5139 unipolar output voltage range is
0 to VREFI. The output buffer drives a 2k
Ω load in parallel
with 200pF.
Bipolar Output
Use the MAX5138/MAX5139 in bipolar applications with
additional external components (see the
Typical
Operating Circuit).
Power Supplies and
Bypassing Considerations
For best performance, use a separate supply for the
MAX5138/MAX5139. Bypass both DVDD and AVDD
with high-quality ceramic capacitors to a low-imped-
ance ground as close as possible to the device.
Minimize lead lengths to reduce lead inductance.
Connect both MAX5138/MAX5139 AGND inputs to the
analog ground plane.
Layout Considerations
Digital and AC transient signals on AGND inputs can
create noise at the outputs. Connect both AGND inputs
to form the star ground for the DAC system. Refer
remote DAC loads to this system ground for the best
possible performance. Use proper grounding tech-
niques, such as a multilayer board with a low-induc-
tance ground plane, or star connect all ground return
paths back to the MAX5138/MAX5139 AGND. Do not
use wire-wrapped boards and sockets. Use shielding
to improve noise immunity. Do not run analog and digi-
tal signals parallel to one another (especially clock sig-
nals) and avoid routing digital lines underneath the
MAX5138/MAX5139 package.
Definitions
Integral Nonlinearity (INL)
INL is the deviation of the measured transfer function
from a best fit straight line drawn between two codes.
This best fit line for the MAX5138 is a line drawn
between codes 3072 and 64,512 of the transfer func-
tion and the best fit line for the MAX5139 is a line drawn
between codes 192 and 4032 of the transfer function,
once offset and gain errors have been nullified.
Differential Nonlinearity (DNL)
DNL is the difference between an actual step height
and the ideal value of 1 LSB. If the magnitude of the
DNL is greater than -1 LSB, the DAC guarantees no
missing codes and is monotonic.
Low-Power, Single, 16-/12-Bit,
Buffered Voltage-Output DACs
14
Maxim Integrated
MAX5138/MAX5139
DAC LATCH CONTENTS
MSB
LSB
ANALOG OUTPUT, VOUT
1111 1111 1111 1111
VREF x (65,535/65,536)
1000 0000 0000 0000
VREF x (32,768/65,536) = 1/2 VREF
0000 0000 0000 0001
VREF x (1/65,536)
0000 0000 0000 0000
0
Table 2. MAX5138 Input Code vs. Output
Voltage
DAC LATCH CONTENTS
MSB
LSB
ANALOG OUTPUT, VOUT
1111 1111 1111 XXX
VREF x (4095/4096)
1000 0000 0000 XXX
VREF x (2048/4096)
0000 0000 0001 XXX
VREF x (1/4096)
0000 0000 0000 XXX
0
Table 3. MAX5139 Input Code vs. Output
Voltage
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相关代理商/技术参数 |
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|---|---|
| MAX5138EVKIT+ | 功能描述:数据转换 IC 开发工具 MAX5138/39 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| MAX5139 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Power, Single, 16-/12-Bit, Buffered Voltage-Output DACs |
| MAX5139GTE+ | 功能描述:数模转换器- DAC 12-Bit Precision DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MAX5139GTE+T | 功能描述:数模转换器- DAC 12-Bit Precision DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| MAX513C/D | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Low-Cost, Triple, 8-Bit Voltage-Output DACs with Serial Interface |
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