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參數資料
| 型號： | AD5310* |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | +2.7 V to +5.5 V. 140 uA. Rail-to-Rail Voltage Output 10-Bit DAC in a SOT-23 |
| 中文描述： | 2.7伏至5.5伏140微安。軌至軌電壓輸出10位DAC采用SOT - 23 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 164K |
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
AD5310*
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
+2.7 V to +5.5 V, 140
m
A, Rail-to-Rail
Voltage Output 10-Bit DAC in a SOT-23
FUNCTIONAL BLOCK DIAGRAM
DAC
REGISTER
10-BIT
DAC
INPUT
CONTROL LOGIC
POWER-DOWN
CONTROL LOGIC
OUTPUT
BUFFER
POWER-ON
RESET
AD5310
V
DD
GND
REF (+)
REF (–)
RESISTOR
NETWORK
SYNC
SCLK
DIN
V
OUT
FEATURES
Single 10-Bit DAC
6-Lead SOT-23 and 8-Lead
m
SOIC Packages
Micropower Operation: 140
m
A @ 5 V
Power-Down to 200 nA @ 5 V, 50 nA @ 3 V
+2.7 V to +5.5 V Power Supply
Guaranteed Monotonic by Design
Reference Derived from Power Supply
Power-On-Reset to Zero Volts
Three Power-Down Functions
Low Power Serial Interface with Schmitt-Triggered
Inputs
On-Chip Output Buffer Amplifier, Rail-to-Rail
Operation
SYNC
Interrupt Facility
APPLICATIONS
Portable Battery Powered Instruments
Digital Gain and Offset Adjustment
Programmable Voltage and Current Sources
Programmable Attenuators
GENERAL DESCRIPTION
The AD5310 is a single, 10-bit buffered voltage out DAC that
operates from a single +2.7 V to +5.5 V supply consuming
115
μ
A at 3 V. Its on-chip precision output amplifier allows rail-
to-rail output swing to be achieved. The AD5310 utilizes a ver-
satile three-wire serial interface that operates at clock rates up
to 30 MHz and is compatible with standard SPI, QSPI,
MICROWIRE and DSP interface standards.
The reference for AD5310 is derived from the power supply
inputs and thus gives the widest dynamic output range. The part
incorporates a power-on-reset circuit that ensures that the DAC
output powers up to zero volts and remains there until a valid
write takes place to the device. The part contains a power-down
feature which reduces the current consumption of the device to
200 nA at 5 V and provides software selectable output loads
while in power-down mode. The part is put into power-down
mode over the serial interface.
The low power consumption of this part in normal operation
makes it ideally suited to portable battery operated equipment.
The power consumption is 0.7 mW at 5 V reducing to 1
μ
W in
power-down mode.
The AD5310 is one of a family of pin-compatible DACs. The
AD5300 is the 8-bit version and the AD5320 is the 12-bit ver-
sion. The AD5300/AD5310/AD5320 are available in 6-lead
SOT-23 packages and 8-lead
μ
SOIC packages.
PRODUCT HIGHLIGHTS
1. Available in 6-lead SOT-23 and 8-lead
μ
SOIC packages.
2. Low power, single supply operation. This part operates from
a single +2.7 V to +5.5 V supply and typically consumes
0.35 mW at 3 V and 0.7 mW at 5 V, making it ideal for
battery powered applications.
3. The on-chip output buffer amplifier allows the output of the
DAC to swing rail-to-rail with a slew rate of 1 V/
μ
s.
4. Reference derived from the power supply.
5. High speed serial interface with clock speeds up to 30 MHz.
Designed for very low power consumption. The interface
only powers up during a write cycle.
6. Power-down capability. When powered down, the DAC
typically consumes 50 nA at 3 V and 200 nA at 5 V.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corporation.
*Patent pending; protected by U.S. Patent No. 5684481.
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