參數資料
| 型號： | AD7836ASZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/12頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 14BIT QUAD LC2MOS 44MQFP |
| 產品培訓模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 1 |
| 設置時間： | 16µs |
| 位數： | 14 |
| 數據接口： | 并聯 |
| 轉換器數目： | 4 |
| 電壓電源： | 模擬和數字，雙 ± |
| 功率耗散（最大）： | 460mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-QFP |
| 供應商設備封裝： | 44-MQFP（10x10） |
| 包裝： | 托盤 |
| 輸出數目和類型： | 4 電壓，單極；4 電壓，雙極 |
| 采樣率（每秒）： | 62.5k |
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
LC2MOS
Quad 14-Bit DAC
AD7836
FEATURES
Four 14-Bit DACs in One Package
Voltage Outputs
Separate Offset Adjust for Each Output
Reference Range of
5 V
Maximum Output Voltage Range of
10 V
Clear Function to User-Defined Code
44-Pin MQFP Package
APPLICATIONS
Process Control
Automatic Test Equipment
General Purpose Instrumentation
GENERAL DESCRIPTION
The AD7836 contains four 14-bit DACs on one monolithic
chip. It has output voltages with a full-scale range of
±10 V
from reference voltages of
±5 V.
The AD7836 accepts 14-bit parallel loaded data from the exter-
nal bus into one of the input latches under the control of the
WR, CS and DAC channel address pins, A0–A2.
The DAC outputs are updated individually, on reception of new
data. In addition, the SEL input can be used to apply the user
programmed value in DAC Register E to all DACs, thus setting
all DAC output voltages to the same level. The contents of the
DAC data registers are not affected by the SEL input.
Each DAC output is buffered with a gain of two amplifier into
which an external DAC offset voltage can be inserted via the
DUTGNDx pins.
The AD7836 is available in a 44-lead MQFP package.
FUNCTIONAL BLOCK DIAGRAM
DATA
REG
A
DATA
REG
B
MUX
DAC A
MUX
DATA
REG
C
DATA
REG
D
DATA
REG
E
X1
R
INPUT
BUFFER
AD7836
ADDRESS
DECODE
DUTGND D
DUTGND C
VOUTD
DUTGND B
VOUTC
DUTGND A
VOUTB
VOUTA
A0
A1
A2
DB0
WR
CS
DB13
VCC
VSS
VDD
VREF(+)A
SEL
AGND
DGND
14
DAC B
DAC D
VREF(–)A VREF(+)B VREF(–)B
DAC B
VREF(+)D VREF(–)D VREF(+)C VREF(–)C
CLR
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1999
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