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参数资料
| 型号： | MAX5312EAE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | DAC |
| 英文描述： | +-10V, 12-Bit, Serial, Voltage-Output DAC |
| 中文描述： | SERIAL INPUT LOADING, 10 us SETTLING TIME, 12-BIT DAC, PDSO16 |
| 封装： | 5.30 MM, MO-150, SSOP-16 |
| 文件页数： | 12/19页 |
| 文件大小： | 1086K |
| 代理商： | MAX5312EAE |
M
±10V, 12-Bit, Serial, Voltage-Output DAC
12
______________________________________________________________________________________
PIN
NAME
FUNCTION
1
SCLK
Serial-Clock Input. Data is shifted from DIN into the internal register on the rising edge of SCLK. Data is
clocked out at DOUT on the falling edge of SCLK. SCLK is active only while
CS
is low.
2
3
DIN
CS
S er al D ata Inp ut. D N i s the d ata i np ut p or for the ser al i nter ace. C ock d ata i n on the r si ng ed g e of S C LK.
Acti ve- Low C hi p S el ect Inp ut.
CS
acti vates the ser al i nter ace. D ve
CS
l ow to i ni i ate ser al com m uni cati on.
4
DOUT
Serial-Data Output. DOUT is the data output port for the serial interface. Data shifted into DIN appears at
DOUT 16.5 clock cycles later, valid on the falling edge of SCLK. DOUT is high impedance when
CS
is high.
5
6
DGND
V
CC
Digital Ground
Digital Power Input. V
CC
ranges from +2.7V to +5.5V. Bypass V
CC
with a 0.1μF and 1.0μF capacitor to
7
SHDN
Active-Low Shutdown Input.
SHDN
places the device into low-power shutdown mode. When shut down
REF and DOUT are high impedance, drive
SHDN
low to place the device into shutdown mode.
8
UNI/
BIP
Unipolar/Bipolar-Select Input. UNI/
BIP
selects unipolar or bipolar output. In unipolar mode, the analog
output range is 0 to (+2 x V
REF
). In bipolar mode, the analog output range is (-2 x V
REF
) to (+2 x V
REF
).
Drive UNI/
BIP
high for unipolar output. Drive UNI/
BIP
low for bipolar output. Dual supplies are required for
bipolar operation.
Analog Output. OUT is the output port for the DAC. Read OUT relative to SGND.
9
OUT
10
SGND
Signal Ground. SGND is the ground-reference node for the output amplifier’s internal feedback resistors.
Connect SGND directly to AGND. (See Figure 1.)
11
AGND
Analog Ground. AGND is the ground return for V
DD
and V
SS
.
Negative Power Input. Bypass V
SS
with a 0.1μF and 1.0μF capacitor to AGND. If operating with a single
supply, connect V
SS
to AGND.
External Reference Input. Apply an external reference voltage of +2V to +5.25V to REF to determine the
output voltage range. In unipolar mode, the output range is from 0 to (+2 x V
REF
). In bipolar mode, the
output range is from (-2 x V
REF
) to (+2 x V
REF
).
Positive Power Input. Bypass V
DD
with a 0.1μF and 1.0μF capacitor to AGND.
Active-Low Clear Input.
CLR
clears input and DAC registers and resets the DAC output to 0V. Drive
CLR
low to assert the clear condition.
12
V
SS
13
REF
14
V
DD
15
CLR
16
LDAC
Active-Low Load Input. Use
LDAC
to update the DAC register.
LDAC
is an asynchronous control input.
Drive low to force an update.
Pin Description
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