參數(shù)資料
型號(hào): AD7237A
廠商: Analog Devices, Inc.
英文描述: LC2MOS Dual 12-Bit DACPORTs
中文描述: LC2MOS雙12位DACPORTs
文件頁數(shù): 5/12頁
文件大?。?/td> 392K
代理商: AD7237A
AD7237A/AD7247A
REV. 0
–5–
AD7247A PIN FUNCTION DESCRIPTION (DIP PIN NUMBERS)
Pin
Mnemonic
Description
1
REF OUT
Voltage Reference Output. The internal 5 V analog reference is provided at this pin. To operate the part
with internal reference, REF OUT should be connected to REF IN.
2
R
OFSB
Output Offset Resistor for DAC B. This input configures the output ranges for DAC B. It is connected to
V
OUTB
for the +5 V range, to GND for the +10 V range and to REF IN for the
±
5 V range.
3
V
OUTB
Analog Output Voltage from DAC B. This is the buffer amplifier output voltage. Three different output
voltage ranges can be chosen: 0 V to +5 V, 0 V to +10 V and
±
5 V. The amplifier is capable of developing
+10 V across a 2 k
resistor to GND.
4
DB11
Data Bit 11 (MSB).
5
DB10
Data Bit 10.
6
GND
Ground. Ground reference for all on-chip circuitry.
7–15
DB9-DB1
Data Bit 9 to Data Bit 1.
16
DB0
Data Bit 0 (LSB).
17
CSB
Chip Select Input for DAC B. Active low logic input. DAC B is selected when this input is active.
18
CSA
Chip Select Input for DAC A. Active low logic input. DAC A is selected when this input is active.
19
WR
Write Input.
WR
is an active low logic input which is used in conjunction with
CSA
and
CSB
to write data
to the DAC latches.
20
V
DD
Positive Supply (+12 V to +15 V).
21
V
OUTA
Analog Output Voltage from DAC A. This is the buffer amplifier output voltage. Three different output
voltage ranges can be chosen: 0 V to +5 V, 0 V to +10 V and
±
5 V. The amplifier is capable of developing
+10 V across a 2 k
resistor to GND.
22
V
SS
Negative Supply (0 V or –12 V to –15 V).
23
R
OFSA
Output Offset Resistor for DAC A. This input configures the output ranges for DAC A. It is connected to
V
OUTA
for the +5 V range, to GND for the +10 V range and to REF IN for the
±
5 V range.
24
REF IN
Voltage Reference Input. The common reference voltage for both DACs is applied to this pin. It is internally
buffered before being applied to both DACs. The nominal reference voltage for correct operation of the
AD7247A is 5 V.
AD7237A PIN CONFIGURATION
DIP and SOIC
AD7247A PIN CONFIGURATION
DIP and SOIC
相關(guān)PDF資料
PDF描述
AD7237AAN CAPACITOR, 10UF, 50V ELECTROLYTIC, RADIAL
AD7237AAR LC2MOS Dual 12-Bit DACPORTs
AD7237ABN 10K 10-TURN WW 1/4 DIA SHAFT
AD7237ABR LC2MOS Dual 12-Bit DACPORTs
AD7237ATQ 0.001UF(1000PF) 20% 1KV Y5V RAD
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