Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

AD584KH Folha de dados(PDF) 9 Page - Analog Devices

Nome de Peças AD584KH
Descrição Electrónicos  Pin Programmable, Precision Voltage Reference
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

AD584KH Folha de dados(HTML) 9 Page - Analog Devices

Back Button AD584KH Datasheet HTML 4Page - Analog Devices AD584KH Datasheet HTML 5Page - Analog Devices AD584KH Datasheet HTML 6Page - Analog Devices AD584KH Datasheet HTML 7Page - Analog Devices AD584KH Datasheet HTML 8Page - Analog Devices AD584KH Datasheet HTML 9Page - Analog Devices AD584KH Datasheet HTML 10Page - Analog Devices AD584KH Datasheet HTML 11Page - Analog Devices AD584KH Datasheet HTML 12Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 9 / 12 page
background image
Data Sheet
AD584
Rev. C | Page 9 of 12
The AD584 can also use an NPN or NPN Darlington transistor to
boost its output current. Simply connect the 10 V output terminal
of the AD584 to the base of the NPN booster and take the
output from the booster emitter, as shown in Figure 13. The
5.0V pin or the 2.5V pin must connect to the actual output in
this configuration. Variable or adjustable outputs (as shown in
Figure 3 and Figure 4) can be combined with a 5.0 V connection to
obtain outputs above 5.0 V.
Figure 13. NPN Output Current Booster
THE AD584 AS A CURRENT LIMITER
The AD584 represents an alternative to current limiter diodes
that require factory selection to achieve a desired current. Use of
current limiting diodes often results in temperature coefficients
of 1%/°C. Use of the AD584 in this mode is not limited to a set
current limit; it can be programmed from 0.75 mA to 5 mA
with the insertion of a single external resistor (see Figure 14).
The minimum voltage required to drive the connection is 5 V.
Figure 14. A Two-Component Precision Current Limiter
NEGATIVE REFERENCE VOLTAGES FROM AN AD584
The AD584 can also be used in a 2-terminal Zener mode to
provide a precision −10 V, −7.5 V, or −5.0 V reference. As shown in
Figure 15, the VIN and VOUT terminals are connected together to
the positive supply (in this case, ground). The AD584 COMMON
pin is connected through a resistor to the negative supply. The
output is now taken from the COMMON pin instead of VOUT. With
1 mA flowing through the AD584 in this mode, a typical unit
shows a 2 mV increase in the output level over that produced in
3-terminal mode. Also, note that the effective output impedance in
this connection increases from 0.2 Ω typical to 2 Ω. It is essential
to arrange the output load and the supply resistor, RS, so that
the net current through the AD584 is always between 1 mA
and 5 mA (between 2 mA and 5 mA for operation beyond 85°C).
The temperature characteristics and long-term stability of the
device is essentially the same as that of a unit used in standard
3-terminal mode.
Figure 15. 2-Terminal, −5 V Reference
The AD584 can also be used in 2-terminal mode to develop a
positive reference. VIN and VOUT are tied together and to the
positive supply through an appropriate supply resistor. The
performance characteristics are similar to those of a negative
2-terminal connection. The only advantage of this connection
over the standard 3-terminal connection is that a lower primary
supply can be used, as low as 0.5 V above the desired output
voltage. This type of operation requires considerable attention
to load and to the primary supply regulation to ensure that the
AD584 always remains within its regulating range of 1 mA to
5 mA (2 mA to 5 mA for operation beyond 85°C).
10 V REFERENCE WITH MULTIPLYING CMOS DACs
OR ADCs
The AD584 is ideal for application with the AD7533 10-bit
multiplying CMOS DAC, especially for low power applications.
It is equally suitable for the AD7574 8-bit ADC. In the standard
hook-up, as shown in Figure 16, the standard output voltages are
inverted by the amplifier/DAC configuration to produce converted
voltage ranges. For example, a +10 V reference produces a 0 V to
−10 V range. If an OP1177 amplifier is used, total quiescent
supply current is typically 2 mA.
Figure 16. Low Power 10-Bit CMOS DAC Application
AD584
1
10.0V
5.0V
2.5V
2
3
8
V+
4
COMMON
DARLINGTON
NPN 2N6057
VOUT
(5V, 12A
AS SHOWN)
1kΩ
RAW SUPPLY (≈5V > VOUT)
AD584
1
VOUT = 2.5V
2.5V
TAP
3
8
V+
4
COMMON
=
i
+ 0.75mA
2.5V
R
RLOAD
AD584
1
VOUT
VREF
–5V
5.0V
TAP
2
8
V+
4
COMMON
–15V
RS
2.4kΩ
5%
ANALOG
GND
1µF
AD584
10.0V
V+
1
8
4
COMMON
+15V
AD7533
4
BIT 1 (MSB)
5
DIGITAL
INPUT
13
16
1
2
BIT 10 (LSB)
15
3
14
VREF
+15V
–15V
VOUT
0V TO –10V
RFB
IOUT1
IOUT2
COMMON


Nº de peça semelhante - AD584KH

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
AD584KH AD-AD584KH Datasheet
304Kb / 8P
   Pin Programmable Precision Voltage Reference
REV. A
AD584KH AD-AD584KH Datasheet
515Kb / 12P
   Pin Programmable, Precision Voltage Reference
REV. C
AD584KH AD-AD584KH Datasheet
515Kb / 12P
   Pin Programmable, Precision Voltage Reference
REV. C
More results

Descrição semelhante - AD584KH

Fabricante ElectrônicoNome de PeçasFolha de dadosDescrição Electrónicos
logo
Analog Devices
JM3851012801BGA AD-JM3851012801BGA Datasheet
515Kb / 12P
   Pin Programmable, Precision Voltage Reference
REV. C
AD584 AD-AD584 Datasheet
304Kb / 8P
   Pin Programmable Precision Voltage Reference
REV. A
AD584TH AD-AD584TH Datasheet
515Kb / 12P
   Pin Programmable, Precision Voltage Reference
REV. C
logo
Maxim Integrated Produc...
MX584 MAXIM-MX584 Datasheet
296Kb / 8P
   Pin Programmable Precision Voltage Reference
Rev 1; 8/96
MX584 MAXIM-MX584_V01 Datasheet
642Kb / 11P
   Pin-Programmable, Precision Voltage Reference
2004
logo
Unisonic Technologies
TL431L UTC-TL431L_11 Datasheet
231Kb / 6P
   PROGRAMMABLE PRECISION REFERENCE
logo
Texas Instruments
TL431_102 TI-TL431_102 Datasheet
1Mb / 76P
[Old version datasheet]   PRECISION PROGRAMMABLE REFERENCE
logo
Weitron Technology
WT431LT1 WEITRON-WT431LT1 Datasheet
591Kb / 5P
   PROGRAMMABLE PRECISION REFERENCE
logo
Texas Instruments
TL1431 TI1-TL1431_12 Datasheet
812Kb / 27P
[Old version datasheet]   PRECISION PROGRAMMABLE REFERENCE
logo
Unisonic Technologies
TL431H UTC-TL431H Datasheet
197Kb / 6P
   PROGRAMMABLE PRECISION REFERENCE
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Folha de dados Download

Go To PDF Page


Ligação URL




Privacy Policy
ALLDATASHEETPT.COM
ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com