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부품번호 | AD5750 기능 |
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기능 | Industrial Current/Voltage Output Driver | ||
제조업체 | Analog Devices | ||
로고 | |||
전체 30 페이지수
Data Sheet
Industrial Current/Voltage Output Driver
with Programmable Ranges
AD5750/AD5750-1/AD5750-2
FEATURES
Current output ranges: 4 mA to 20 mA, 0 mA to 20 mA, 0 mA
to 24 mA, ±20 mA, and ±24 mA
±0.03% full-scale range (FSR) total unadjusted error (TUE)
±5 ppm/°C typical output drift
Voltage output ranges: 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V
with 20% overrange
±0.02% FSR TUE
±3 ppm/°C typical output drift
Flexible serial digital interface
On-chip output fault detection
Packet error checking (PEC)
Asynchronous CLEAR function
Flexible power-up condition to 0 V or tristate
Power supply range
AVDD: +12 V (± 10%) to +24 V (± 10%)
AVSS: −12 V (± 10%) to −24 V (± 10%)
Output loop compliance to AVDD − 2.75 V
Temperature range: −40°C to +105°C
32-lead, 5 mm × 5 mm LFCSP package
APPLICATIONS
Process controls
Actuator controls
PLCs
GENERAL DESCRIPTION
The AD5750/AD5750-1/AD5750-2 are single-channel, low cost,
precision voltage/current output drivers with hardware- or
software-programmable output ranges. The software ranges are
configured via an SPI-/MICROWIRE™-compatible serial interface.
The AD5750/AD5750-1/AD5750-2 target applications in PLC
and industrial process control. The analog input to the AD5750/
AD5750-1/AD5750-2 is provided from a low voltage, single-supply
digital-to-analog converter (DAC) and is internally conditioned
to provide the desired output current/voltage range. Analog input
ranges available are 0 V to 2.5 V (AD5750-1/AD5750-2) or 0 V
to 4.096 V (AD5750).
The output current range is programmable across five current
ranges: 4 mA to 20 mA, 0 mA to 20 mA, 0 mA to 24 mA, ±20 mA,
and ±24 mA. An overrange of 2% is available on the unipolar
current ranges.
Voltage output is provided from a separate pin that can be
configured to provide 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V
output ranges. An overrange of 20% is available on the voltage
ranges.
Analog outputs are short-circuit and open-circuit protected and
can drive capacitive loads of 1 µF and inductive loads of 0.1 H.
The devices are specified to operate with a power supply range
from ±12 V to ±24 V. Output loop compliance is 0 V to AVDD −
2.75 V.
The flexible serial interface is SPI and MICROWIRE compatible
and can operate in 3-wire mode to minimize the digital isolation
required in isolated applications. The interface also features an
optional PEC feature using CRC-8 error checking, useful in
industrial environments where data communication corruption
can occur.
The devices also include a power-on-reset function, ensuring that
the devices power up in a known state (0 V or tristate), and an
asynchronous CLEAR pin that sets the outputs to a zero scale/mid-
scale voltage output or the low end of the selected current range.
The HW SELECT pin is used to configure the parts for hardware
or software mode on power-up.
Table 1. Related Devices
Part Number Description
AD5422
Single channel, 16-bit, serial input current
source and voltage output DAC
AD5751
Industrial I/V output driver, single supply, 55 V
maximum supply, programmable ranges
AD5420
Single channel, 16-bit, serial input, 4 mA to
20 mA current source DAC
Rev. F
Document Feedback
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2009–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
AD5750/AD5750-1/AD5750-2
Data Sheet
SPECIFICATIONS
AVDD/AVSS = ±12 V (± 10%) to ±24 V (± 10%), DVCC = 2.7 V to 5.5 V, GND = 0 V. IOUT: RLOAD = 300 Ω. All specifications TMIN to TMAX,
unless otherwise noted.
Table 2.
Parameter1
INPUT VOLTAGE RANGE
Input Leakage Current
REFERENCE INPUT
Reference Input Voltage
Min
−1
Input Leakage Current
VOLTAGE OUTPUT
Output Voltage Ranges
Output Voltage Overranges
−1
0
0
−5
−10
0
Accuracy
Total Unadjusted Error (TUE)
B Version2
A Version2
Relative Accuracy (INL)
Bipolar Zero Error (Offset at Midscale)
Bipolar Zero Error Temperature
Coefficient3
Zero-Scale Error
0
−6
−12
−2.5
−0.1
−0.05
−0.3
−0.1
−0.02
−10
−8
−5
−4
−10
−8
−5
−4
Typ Max
0 to 4.096
0 to 2.5
+1
4.096
2.5
1.25
+1
5
10
+5
+10
6
12
+6
+12
+2.5
±0.02
±0.05
±0.005
±0.5
±0.3
±1.5
±0.5
±0.3
+0.1
+0.05
+0.3
+0.1
+0.02
+10
+8
+5
+4
+10
+8
+5
+4
Unit Test Conditions/Comments
Output unloaded
V AD5750
AD5750-1/AD5750-2
µA
V AD5750; external reference must
to be exactly as stated; otherwise,
accuracy errors show up as error
in output
V AD5750-2; external reference needs
to be exactly as stated; otherwise,
accuracy errors show up as error
in output
V AD5750-1; external reference needs
to be exactly as stated; otherwise,
accuracy errors show up as error
in output
µA
V
V AVDD needs to have minimum
1.3 V headroom or >11.3 V
V
V AVDD/AVSS needs to have minimum
1.3 V headroom or >±11.3 V
V Programmable overranges; see the
Detailed Description of Features
section
V
V
V
V
% FSR
% FSR
% FSR
% FSR
% FSR
mV
mV
mV
mV
ppm FSR/°C
TA = 25°C
TA = 25°C
±10 V range
TA = 25°C, ±10 V range
±5 V range
TA = 25°C, ± 5 V range
All bipolar ranges
mV ±10 V range
mV TA = 25°C, ±10 V range
mV ± 5 V range
mV TA = 25°C, ±5 V range
Rev. F | Page 4 of 36
4페이지 Data Sheet
AD5750/AD5750-1/AD5750-2
Parameter1
CURRENT OUTPUT CHARACTERISTICS3
Current Loop Compliance Voltage
Resistive Load
Inductive Load
Min Typ Max Unit
0 AVDD − 2.75 V
See test conditions/comments column
See test conditions/comments column
Settling Time
4 mA to 20 mA, Full-Scale Step
4 mA to 20 mA, 120 µA Step
DC PSRR
Output Impedance
Leakage Current
VOUT/VSENSE− Error
−12
0.9994
8.5
1.2
130
1
+12
1.0006
µs
µs
µA/V
MΩ
nA
Gain
DIGITAL INPUT
Input High Voltage, VIH
Input Low Voltage, VIL
Input Current
Pin Capacitance
DIGITAL OUTPUTS3
FAULT, IFAULT, TEMP, VFAULT
Output Low Voltage, VOL
2
−1
Output High Voltage, VOH
SDO
Output Low Voltage, VOL
Output High Voltage, VOH
High Impedance Output Capacitance
High Impedance Leakage Current
POWER REQUIREMENTS
AVDD
AVSS
DVCC
Input Voltage
AIDD
3.6
0.5
DVCC − 0.5
−1
12
−12
2.7
AISS
0.8
+1
5
0.4
0.6
0.5
DVCC − 0.5
3
+1
24
−24
5.5
4.4 5.6
5.2 6.2
5.2 6.2
2.0 2.5
V
V
µA
pF
V
V
V
V
V
pF
µA
V
V
V
mA
mA
mA
mA
DICC
Power Dissipation
2.0 3.5
2.5 3
2.5 3
0.3 1
108
mA
mA
mA
mA
mW
1 Temperature range: −40°C to +105°C; typical at +25°C.
2 Specification includes gain and offset errors over temperature and drift after 1000 hours, TA = 125°C.
3 Guaranteed by characterization, but not production tested.
Test Conditions/Comments
Chosen such that compliance is
not exceeded
Needs appropriate capacitor at
higher inductance values; see the
Driving Inductive Loads section
250 Ω load
250 Ω load
Output disabled; leakage to ground
Error in VOUT voltage due to changes
in VSENSE−; specified as gain, for
example, if VSENSE− moves by 1 V,
VOUT moves by 0.9994 V
JEDEC compliant
Per pin
Per pin
10 kΩ pull-up resistor to DVCC
At 2.5 mA
10 kΩ pull-up resistor to DVCC
Sinking 200 µA
Sourcing 200 µA
±10%
±10%
Output unloaded, output disabled,
R3, R2, R1, R0 = 0, 1, 0, 1; RSET = 0
Current output enabled
Voltage output enabled
Output unloaded, output disabled,
R3, R2, R1, R0 = 0, 1, 0, 1; RSET = 0,
AD5750 and AD5750-1
AD5750-2
Current output enabled
Voltage output enabled
VIH = DVCC, VIL = GND
AVDD/AVSS = ±24 V, outputs unloaded
Rev. F | Page 7 of 36
7페이지 | |||
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AD5750 | Industrial Current/Voltage Output Driver | Analog Devices |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |