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PDF AD5501 Data sheet ( Hoja de datos )
| Número de pieza | AD5501 | |
| Descripción | High Voltage DAC | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
FEATURES
Single-channel high voltage DAC
12-bit resolution
Pin-selectable 30 V or 60 V output range
Integrated precision reference
Low power serial interface with readback capability
Integrated temperature sensor alarm function
Power-on reset
Wide operating temperature range: −40°C to +105°C
APPLICATIONS
Programmable voltage sources
High voltage LED drivers
Receiver bias in optical communications
12-Bit, High Voltage DAC
with SPI Interface
AD5501
GENERAL DESCRIPTION
The AD5501 is a single-channel, 12-bit, serial input, digital-to-
analog converter (DAC) with an on-chip high voltage output
amplifier and an integrated precision reference. The DAC output
voltage range is programmable via the range select pin (R_SEL).
If R_SEL is held high, the DAC output range is 0 V to 30 V. If
R_SEL is held low, the DAC output range is 0 V to 60 V. The on
chip output amplifier allows an output swing within the range
of AGND + 0.5 V to VDD − 0.5 V.
The AD5501 has a high speed serial interface, which is compatible
with SPI®-, QSPI™-, MICROWIRE™-, and DSP-interface standards
and can handle clock speeds of up to 16.667 MHz.
SYNC
SCLK
SDI
SDO
LDAC
ALARM
FUNCTIONAL BLOCK DIAGRAM
VLOGIC
VDD
POWER-ON
RESET
DAC
REGISTER
PRECISION
REFERENCE
122.36kΩ
REF(+)
12-BIT
DAC
1713kΩ
OUTPUT
BUFFER
–
+
VFB
VOUT
INPUT
CONTROL
LOGIC
POWER-DOWN
CONTROL LOGIC
TEMPERATURE
SENSOR
RESISTOR
NETWORK
AD5501
CLR R_SEL
DGND
Figure 1.
AGND
Rev. C
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2009-2012 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
Free Datasheet http://www.datasheet4u.com/
1 page  
Data Sheet
AD5501
Parameter
POWER SUPPLIES
VDD
VLOGIC
Quiescent Supply Current
Logic Supply Current
DC PSRR4
30 V mode
60 V mode
POWER-DOWN MODE
Supply Current
Software Power-Down Mode
Junction Temperature6
Symbol Min
IQUIESCENT
ILOGIC
10
2.3
IDD_PWD
TJ
Typ1 Max
62
5.5
0.6 0.75
0.4 2
76
68
30 50
130
Unit
V
V
mA
µA
dB
dB
µA
°C
Test Conditions/Comments
Static conditions; DAC output =
midscale
VIH = VLOGIC; VIL = DGND
DAC output = full scale
DAC output = full scale
TJ = TA + PTOTAL × θJA
1 Typical specifications represent average readings at 25°C, VDD = 62 V, and VLOGIC = 5 V.
2 Valid in the output voltage range of (AGND + 0.5 V) to (VDD − 0.5 V). Output is unloaded.
3 Includes linearity, offset, and gain drift.
4 Guaranteed by design and characterization. Not production tested.
5 The DAC architecture gives a fixed linear voltage output range of 0 V to 30 V if R_SEL is held high and 0 V to 60 V if R_SEL is held low. As the output voltage range is
limited by output amplifier compliance, VDD should be set to at least 0.5 V higher than the maximum output voltage to ensure compliance.
6 If the die temperature exceeds 110°C, the AD5501 enters a temperature power-down mode putting the DAC output into a high impedance state thereby removing
the short-circuit condition. Overheating caused by long term short-circuit condition(s) is detected by an integrated thermal sensor. After power-down, the AD5501
remains powered down until a software power-up command is executed.
7 Maximum resistance between VOUT and VFB pins.
AC CHARACTERISTICS
VDD = 10 V to 62 V; VLOGIC = 2.3 V to 5.5 V; RL = 60 kΩ; CL = 200 pF; −40°C < TA < +105°C, unless otherwise noted.
Table 3.
Parameter1, 2
AC CHARACTERISTICS
Output Voltage Settling Time
60 V Mode
30 V Mode
Slew Rate
Digital-to-Analog Glitch Energy
Glitch Impulse Peak Amplitude
Digital Feedthrough
Peak-to-Peak Noise
Min Typ
45
25
0.65
300
170
5
140
4
Max
55
35
Unit
µs
µs
V/µs
nV-s
mV
nV-s
μV p-p
mV p-p
Test Conditions/Comments3
¼ to ¾ scale settling to ±1 LSB, RL = 60 kΩ
1 LSB change around major carry in 60 V mode
60 V mode
0.1 Hz to 10 Hz; DAC code = 0x800
0.1 Hz to 10 kHz; DAC code = 0x800
1 Guaranteed by design and characterization; not production tested.
2 See the Terminology section.
3 Temperature range is −40°C to + 105°C, typical at 25°C.
Rev. C | Page 5 of 20
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5 Page 
Data Sheet
2
0
–2
–4
–6
–8
–10
0
5 10
TIME (ms)
Figure 12. Digital-to-Analog Negative Glitch Impulse
15
AD5501
12
10
8
6
4
2
0
–2
–4
0 5 10
TIME (ms)
Figure 13. Digital-to-Analog Positive Glitch Impulse
15
Rev. C | Page 11 of 20
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11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet AD5501.PDF ] | |
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