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參數(shù)資料
| 型號： | MAX5177BEEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | Low-Power, Serial, 12-Bit DACs with Force/Sense Voltage Output |
| 中文描述： | SERIAL INPUT LOADING, 12 us SETTLING TIME, 12-BIT DAC, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 255K |
| 代理商： | MAX5177BEEE |
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
General Desc ription
The MAX5175/MAX5177 low-power, serial, voltage-out-
put, 12-bit digital-to-analog converters (DACs) feature a
precision output amplifier in a space-saving 16-pin
QSOP package. The MAX5175 operates from a single
+5V supply, and the MAX5177 operates from a single
+3V supply. The output amplifier’s inverting input is
available to allow specific gain configurations, remote
sensing, and high output current capability. This makes
the MAX5175/MAX5177 ideal for a wide range of appli-
cations, including industrial process control. Both
devices draw only 260μA of supply current, which
reduces to 1μA in shutdown mode. In addition, the pro-
grammable power-up reset feature allows for a user-
selectable output voltage state of either 0 or midscale.
The 3-wire serial interface is compatible with SPI ,
QSPI, and MICROWIRE standards. An input register
followed by a DAC register provides a double-buffered
input, allowing the registers to be updated independent-
ly or simultaneously with a 16-bit serial word. Additional
features include software and hardware shutdown, shut-
down lockout, a hardware reset pin, and a reference
input capable of accepting DC and offset AC signals.
These devices provide a programmable digital output
pin for added functionality and a serial-data output pin
for daisy-chaining. All logic inputs are TTL/CMOS com-
patible and are internally buffered with Schmitt triggers
to allow direct interfacing to optocouplers.
The MAX5175/MAX5177 incorporate a proprietary on-chip
circuit that keeps the output voltage virtually “glitch free,”
limiting the glitches to a few millivolts during power-up.
Both devices come in 16-pin QSOP packages and are
specified for the extended (-40°C to +85°C) temperature
range. The MAX5171/MAX5173 are 14-bit pin-compatible
upgrades to the MAX5175/MAX5177. For pin-compatible
DACs with an internal reference, see the 13-bit
MAX5132/MAX5133 and 12-bit MAX5122/MAX5123.
Applic ations
Digitally Programmable 4–20mA Current Loops
Industrial Process Controls
Digital Offset and Gain Adjustment
Motion Control
Automatic Test Equipment (ATE)
Remote Industrial Controls
μP-Controlled Systems
Features
o
±1 LSB INL
o
1μA Shutdown Current
o
“Glitch Free” Output Voltage at Power-Up
o
Single-Supply Operation
+5V (MAX5175)
+3V (MAX5177)
o
Full-Scale Output Range
+2.048V (MAX5177, V
REF
= +1.25V)
+4.096V (MAX5175, V
REF
= +2.5V)
o
Rail-to-Rail
Output Amplifier
o
Adjustable Output Offset
o
Low THD (-80dB) in Multiplying Operation
o
SPI/QSPI/MICROWIRE-Compatible 3-Wire
Serial Interface
o
Programmable Shutdown Mode and Power-Up
Reset (0 or midscale)
o
Buffered Output Capable of Driving 4–20mA or
5k
|| 100pF Loads
o
User-Programmable Digital Output Pin Allows
Serial Control of External Components
o
14-Bit Upgrades Available (MAX5171/MAX5173)
M
Low-Power, S erial, 12-Bit DACs with
Forc e/S ense Voltage Output
________________________________________________________________ Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
FB
V
DD
N.C.
REF
AGND
SHDN
UPO
DOUT
DGND
TOP VIEW
MAX5175
MAX5177
QSOP
OUT
RS
CS
PDL
CLR
DIN
SCLK
19-1477; Rev 0; 4/99
PART
MAX5175
AEEE
MAX5175BEEE
MAX5177
AEEE
MAX5177BEEE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
PIN-PACKAGE
16 QSOP
16 QSOP
16 QSOP
16 QSOP
Functional Diagram appears at end of data sheet.
Pin Configuration
Ordering Information
INL
(LSB)
±1
±2
±2
±4
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
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