参数资料
型号: MAX1257BETM+T
厂商: Maxim Integrated Products
文件页数: 26/43页
文件大小: 0K
描述: IC ADC/DAC 12BIT 48-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: ADC,DAC
分辨率(位): 12 b
采样率(每秒): 225k
数据接口: 串行
电压电源: 模拟和数字
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-WFQFN 裸露焊盘
供应商设备封装: 48-TQFN-EP(7x7)
包装: 带卷 (TR)
MAX1220/MAX1257/MAX1258
12-Bit, Multichannel ADCs/DACs with FIFO,
Temperature Sensing, and GPIO Ports
32
______________________________________________________________________________________
Table 20. DAC Serial-Interface Configuration
16-BIT SERIAL WORD
MSB
LSB
CONTROL
BITS
DATA BITS
C3 C2 C1 C0 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
DESCRIPTION
FUNCTION
0
X
NOP
No operation.
0
1
0
X
0
X
RESET
Reset all internal registers to 000h and
leave output buffers in their present state.
0
1
X
1
X
Pull-High
Preset all internal registers to FFFh and
leave output buffers in their present state.
0
1
0
————
———
——
DAC0
D11–D0 to input register 0,
DAC output unchanged.
0
1
————
———
——
DAC1
D11–D0 to input register 1,
DAC output unchanged.
0
1
0
————
———
——
DAC2
D11–D0 to input register 2,
DAC output unchanged.
0
1
0
1
————
———
——
DAC3
D11–D0 to input register 3,
DAC output unchanged.
0
1
0
————
———
——
DAC4
D11–D0 to input register 4,
DAC output unchanged.
0
1
————
———
——
DAC5
D11–D0 to input register 5,
DAC output unchanged.
1
0
————
———
——
DAC6
D11–D0 to input register 6,
DAC output unchanged.
1
0
1
————
———
——
DAC7
D11–D0 to input register 7,
DAC output unchanged.
1
0
1
0
————
———
——
DAC0–DAC3
D11–D0 to input registers 0–3 and DAC
registers 0–3. DAC outputs updated
(write-through).
1
0
1
————
———
——
DAC4–DAC7
D11–D0 to input registers 4–7 and DAC
registers 4–7. DAC outputs updated
(write-through).
1
0
————
———
——
DAC0–DAC7
D11–D0 to input registers 0–7 and DAC
registers 0–7. DAC outputs updated
(write-through).
1
0
1
————
———
——
DAC0–DAC7
D11–D0 to input registers 0–7.
DAC outputs unchanged.
111
0
DAC7
DAC6
DAC5
DAC4
DAC3
DAC2
DAC1
DAC0
X
DAC0–DAC7
Input registers to DAC registers indicated
by ones, DAC outputs updated,
equivalent to software
LDAC.
(No effect on DACs indicated by zeros.)
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