MX584TH/883B [MAXIM]
Three Terminal Voltage Reference, 3 Output, 10V, Trim/Adjustable, BIPolar, MBCY8, METAL CAN,TO-99, 8 PIN;
| 型号： | MX584TH/883B |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Three Terminal Voltage Reference, 3 Output, 10V, Trim/Adjustable, BIPolar, MBCY8, METAL CAN,TO-99, 8 PIN 输出元件 |
| 文件： | 总11页 (文件大小：622K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Not Recommended for New Designs
This product was manufactured for Maxim by an outside wafer foundry
using a process that is no longer available. It is not recommended for
new designs. The data sheet remains available for existing users.
A Maxim replacement or an industry second-source may be available.
Please see the QuickView data sheet for this part or contact technical
support for assistance.
For further information, contact Maxim’s Applications Tech Support.
19-1115; Rev 2; 11/04
Pin-Programmable, Precision Voltage
Reference
General Description
Features
♦ +10.0V, +7.5V, +5.0V, +2.5V Programmable
Maxim’s MX584 is a temperature-compensated,
bandgap voltage reference which provides pin-program-
mable output voltages of +10.00V, +7.50V, +5.00V, and
+2.50V. External components are not required for these
outputs, but if other voltages are desired, they can be
programmed with external resistors.
Outputs
♦ ±10mV Tolerance at +10V (MX584K)
♦ Low Tempco: 15ppm/°C, max (MAX584K)
♦ No External Components or Trims
♦ Short-Circuit Proof
Laser trimming minimizes output error as well as tem-
perature drift, to as low as 10mV and 15ppm/°C with
the MX584K.
♦ Output Sources and Sinks Current
♦ 10mA Output Current
The input voltage range of the MAX584 is 4.5V to 30V.
The reference also includes a STROBE input which
shuts down the reference output. Typical current drain
when ON is 750µA. This drops to about 100µA when
the reference is strobed OFF.
Ordering Information
PART
MX584JH
TEMP RANGE
0°C to +70°C
PIN-PACKAGE ERROR
8 TO-99 Can
8 TO-99 Can
8 PDIP
30mV
10mV
30mV
10mV
30mV
10mV
30mV
10mV
30mV
30mV
10mV
30mV
10mV
The MX584 is designed for use with 8- to 14-bit A/D
and D/A converters as well as data acquisition systems.
It is available in 8-lead TO-99 metal cans, plastic DIPS,
CERDIPS, and SO packages.
MX584KH
MX584JN
0°C to +70°C
0°C to +70°C
MX584KN
MX584JCSA
MX584KCSA
MX584JESA
MX584KESA
MX584JC/D
MX584SH
MX584TH
0°C to +70°C
8 PDIP
0°C to +70°C
8 SO
0°C to +70°C
8 SO
Applications
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
8 SO
CMOS DAC Reference
A/D Converter Reference
Measurement Instrumentation
Data Loggers
8 SO
8 Dice
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
8 TO-99 Can
8 TO-99 Can
8 CERDIP
8 CERDIP
Precision Analog Systems
Programmable Offset for PGAs
MX584SQ
MX584TQ
Pin Configuration
Typical Operating Circuit
TOP VIEW
10.0V
5.0V
1
2
3
4
8
7
6
5
+V
S
CAP
8
MX584
+V
2.5V
V
BG
S
1
10V
COMMON
STROBE
R
FB
OUT1
MX584
0.01µF
V
OUT
8-Lead DIP
MX7533
0 TO 5V
2
5V
OUT2
GND
TAB
8
V
COMMON
4
REF
MAX400
10.0V
1
3
7
5
CAP
-5V
2
V
BG
5.0V
6
2.4kΩ
MX584
2.5V
STROBE
-5V REFERENCE FOR CMOS DAC
-15V
4
COMMON
TO-39
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Pin-Programmable, Precision Voltage
Reference
ABSOLUTE MAXIMUM RATINGS
Input Voltage (V to COMMON)...............................-0.3V, +40V
IN
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Continuous Power Dissipation
Metal Can (derate 6.7mW/°C above +60°C) ................600mW
CERDIP (derate 8mW/°C above +75°C).......................600mW
Plastic DIP (derate 6mW/°C above +75°C) ..................450mW
SO (derate 5.3mW/°C above +75°C) ...........................400mW
Output Short-Circuit Duration (Note 1) ..........................Indefinite
Operating Temperature Range
Die Junction Temperature (T ) ..........................-55°C to +150°C
Thermal Resistance, Junction to Ambient
Metal Can..................................................................+150°C/W
CERDIP.....................................................................+125°C/W
Plastic DIP.................................................................+160°C/W
SO.............................................................................+170°C/W
J
Commercial (J, K)................................................0°C to +70°C
Military (S, T)...................................................-55°C to +125°C
Extended (J, K).................................................-40°C to +85°C
Note 1: Absolute maximum power dissipation must not be exceeded.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V = +15V, T = +25°C, unless otherwise noted.)
IN
A
PARAMETER
SYMBOL
CONDITIONS
= +10V,
MIN
TYP
MAX
30
10
22
8
UNITS
V
OUT
MAX584J/S
MAX584K/T
V
= +7.5V,
OUT
MAX584J/S
MAX584K/T
Output Voltage Tolerance
I = 0mA, at Pin 1
mV
L
V
= +5.0V,
OUT
15
6
MAX584J/S
MAX584K/T
V
= +2.5V,
OUT
7.5
MAX584J/S
MAX584K/T
3.5
30
15
20
30
15
20
MX584J/S, all outputs
MX584K, all outputs
MX584KE, all outputs
MX584JE, all outputs
MX584T, +10V, +7.5V, +5V out
+2.5V out
Output Voltage Temperature
Coefficient
ppm/°C
ppm/°C
MX584K/T
3
5
Differential Tempco Between
Outputs
MX584J/S
Quiescent Supply Current
Quiescent Current Tempco
Turn-On Settling Time
Noise
I
I = 0mA
L
750
1.5
200
50
1000
µA
µA/°C
µs
Q
t
To 1ꢀ
ON
e
0.1Hz to 10Hz
Noncumulative
µV
P-P
n(P-P)
Long-Term Stability
Short-Circuit Current
25
ppm/khrs
mA
I
30
SC
(V
+ 2.5V) < V < +15V
0.005
0.002
OUT
IN
Line Regulation
No load
ꢀ/V
+15V < V < +30V
IN
2
_______________________________________________________________________________________
Pin-Programmable, Precision Voltage
Reference
ELECTRICAL CHARACTERISTICS (continued)
(V = +15V, T = +25°C, unless otherwise noted.)
IN
A
PARAMETER
SYMBOL
CONDITIONS
I = 0mA to 5mA
MIN
TYP
MAX
UNITS
Load Regulation
Output Current
30
ppm/mA
L
T
A
= +25°C
10
5
Source
T
MIN
to T
MAX
V
>
IN
I
L
V
2.5V
+
OUT
MX584J/K
MX584S/T
5
mA
T
T
to T
MIN
MAX
Sink
(Note 2)
0.2
5
= -55°C to +85°C MX584S/T
A
Note 2: C
≥10nF. See the Output Current section.
LOAD
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
TYPICAL
TEMPERATURE CHARACTERISTICS
10.005
OUTPUT VOLTAGE
vs. SINK AND SOURCE CURRENT
SPECTRAL NOISE DENSITY
AND RMS NOISE vs. FREQUENCY
1000
100
10
NOISE SPECTRAL DENSITY (mV/√Hz)
+V = +15V
= +25°C
S
T
14
12
10
8
A
NO CAP
100pF
0.01µF
1000pF
10.000
9.995
NO CAP
6
TOTAL NOISE µRMS UP TO
SPECIFIED FREQUENCY
4
2
0
1
-55
0
25
70
125
-20 -15 -10 -5
SOURCE
0
5
10 15 20
SINK
10
100
1k
10k
100k
1M
TEMPERATURE (°C)
FREQUENCY (Hz)
OUTPUT CURRENT (mA)
POWER-ON
SETTLING CHARACTERISTICS
MX584 toc04
12
11
10.030
10.020
10.010
10.000
10
20
10
0
0
50 100 150 200 250
SETTLING TIME (µs)
_______________________________________________________________________________________
3
Pin-Programmable, Precision Voltage
Reference
Detailed Description
Table 1. Programming Pin Connections
As shown in Figure 1, most applications of the MX584
OUTPUT VOLTAGE
require no external components. Connections to +V
S
PROGRAMMING (OUTPUT ON PIN 1)
(V)
and COMMON (COMMON is also tied to the case in the
TO-99 metal package) with all other pins unconnected
result in a buffered +10.00V output at pin 1. The other
pretrimmed voltages are obtained by strapping pins as
shown in Table 1. If one or more external buffer ampli-
fiers are connected to the programming pins (pins 2, 3),
multiple outputs can be obtained from one reference.
10
7.5
5.0
2.5
Pins 2 and 3 are unconnected
Connect pins 2 and 3 together
Connect pins 2 and 1 together
Connect pins 3 and 1 together
Other Output Voltages
The MX584 can be adjusted to a different output volt-
age by adding one or more resistors as in Figure 2. As
the diagram shows, the reference can be thought of as
a 1.215V bandgap followed by a noninverting amplifier.
If R1 and R2 are used alone, the adjustment range is
widest but the resolution of the trim may be too coarse,
even when a multi-turn trip pot is used.
+(V
+ 2.5V) TO +30V
OUT
8
+V
S
V
,
1
2
3
OUT
10.0V
5.0V
2.5V
+2.5V, +5.0V, +7.5V, +10V
MX584
When adding external resistors, output voltages well
above 10V can be obtained. R2 should therefore be
chosen carefully since it sets the maximum output volt-
age. R2’s resistance should not be so low as to jeopar-
dize other circuits if R1 is misadjusted.
4
Figure 1. Basic Connection for Positive Outputs
The fixed output voltages can also be varied by con-
necting only one resistor, as in the dashed lines in
Figure 2. Connecting R3 alone raises V
while R4
OUT
alone lowers it. These resistors (or potentiometers)
must have very low temperature coefficients if accuracy
over temperature is to be unaffected by the adjustment.
V
SUPPLY
8
+V
S
If fine adjustment of the output is all that is required, the
circuit of Figure 3 is recommended. It provides good
stability and resolution for a trim range of 200mV. If
the 2.5V output is adjusted, R2 should be connected to
MX584
1
2
3
5
10V
5V
V
OUT
V
, pin 6, and the trim range should be limited to
BG
100mV.
R4
+1.215V
8kΩ
Voltage Temperature Coefficient
The temperature characteristic of the MX584 consis-
tently follows an "S-curve" as shown in the Typical
Operating Characteristics. A five-point 100ꢀ test guar-
antees compliance with -55°C to +125°C specifications
and a three-point 100ꢀ test guarantees 0°C to +70°C
specifications.
2.5V
R1
R2
+2.5V*
4kΩ
4kΩ
V
BG
R3
The tolerance specifications in the Electrical
Characteristics table state the maximum deviation from
the reference’s initial value at +25°C. By adding the
maximum deviation for a given device to its initial toler-
ance, the total possible error is determined.
4
COM
*THE 2.5V TAP (PIN 3) IS USED INTERNALLY AS A BIAS POINT AND SHOULD
NOT BE CHANGED BY MORE THAN 100mV IN ANY TRIM CONFIGURATION.
Figure 2. Variable Output Options
4
_______________________________________________________________________________________
Pin-Programmable, Precision Voltage
Reference
V
SUPPLY
8
V
≥ 15V
IN
470Ω
8
4
+V
S
+V
1
2
COM
S
V
10.0V
5.0V
2.5V
OUT
MX584
MX584
R2
300kΩ
C1
0.1µF
3
6
R1
10kΩ
V
OUT
1
V
BG
COM
4
2N6040
V
+ 10V AT 4A
OUT
Figure 6. High-Current Precision Supply
Figure 3. Fine Adjustment of Output Voltage ( 200mVꢀ
V
SUPPLY
8
8
+V
S
+V
S
7
6
1
2
3
V
OUT
CAP
10.0V
5.0V
2.5V
1
2
3
10V
5V
DARLINGTON
NPN
2N8057
0.01µF TO
0.1µF
MX584
MX584
V
BG
COM
4
2.5V
V
= +10V
OUT
COM
4
*INCREASES COLD START TURN-ON TIME.
1kΩ
Figure 4. Additional Noise Filtering with an External Capacitor
Figure 7. NPN Output Current Booster
V
SUPPLY
8
+V
S
1
2
3
8
V
10V
5V
OUT
+V
S
1
3
10.0V
2.5V
MX584
5
STRB
2.5V
2.5V
R
MX584
COM
4
I ≅
+ 0.75mA
100Ω*
R
20kΩ
LOGIC INPUT
(HIGH = OFF
LOW = ON)
COM
4
2N2222
10kΩ
*SEE TEXT.
Figure 8. Precision Current Limiter
_______________________________________________________________________________________
Figure 5. Use of Strobe Terminal
5
Pin-Programmable, Precision Voltage
Reference
ANALOG
GROUND
7.5V to 15V
8
8
+V
S
+V
S
1
2
5V
1
2
10V
5V
10V
5V
15
16
14
R
FB
OUT1
1
2
0.01µF
MX584
MX584
V
OUT
MX7533
0 TO -5V
OUT2
GND
COM
4
COM
4
V
REF
MAX400
-7.5V
3
5V
V
= -5V
4-13
REF
TO -15V
RS
2.4kΩ
5%
DIGITAL
INPUT
-15V
Figure 10. Low-Power, 10-Bit CMOS DAC Connection
Figure 9. Two-Terminal -5V Reference
Output Current
-5V
The MX584 is capable of sinking as well as sourcing
current. The circuit is also protected for output shorts to
either +VS or ground (COMMON). The output’s voltage
versus current characteristic is shown in the Typical
Operating Characteristics section. For applications that
require the MX584 to sink current, maintain a load
capacitance of 10nF or greater for proper operation.
+5V
1
1kΩ
5%
V
DD
4
2
COM
V
B
REF
OFS
-2.5V
REF
DIGITAL
OUTPUTS
DB0–
DB7
13-6
MX584
0.01µF
8
+V
S
MX7574
Dynamic Performance
The turn-on settling performance of the MX584 is
shown in the Typical Operating Characteristics. Both
coarse and fine transient response is shown. The refer-
ence typically settles to 1mV (10V output) within 180µs
after power is applied.
10V
1
2.5V
A
IN
3
INPUT
0 TO +2.5V
5
AGND
DGND 18
Figure 11. MX584 as Negative 2.5V Reference for a CMOS
ADC
Noise Filtering
The bandwidth of the MX584’s output amplifier can be
limited by connecting a capacitor between the CAP
and VBG pins (see Figure 4). Typical values range from
0.01µF to 0.1µF. The reduction of wideband and
feedthrough noise is plotted in a graph in the Typical
Operating Characteristics section.
current flowing out of STROBE should be limited with
100Ω as shown in the dashed connection in Figure 5.
Applications Information
Precision High-Current Reference
A PNP power transistor, or Darlington, is easily connect-
ed to the MX584 to greatly increase its output current.
The circuit in Figure 6 provides a +10V output at up to
4A. If the load has a significant capacitive component,
C1 should be added. If the load is purely resistive, high-
frequency supply rejection is improved without C1. An
NPN output transistor or Darlington can also be used to
boost output current as shown in Figure 7.
Strobe Input
The STROBE input, pin 5, zeroes the reference output
when it is pulled LOW. If no current is pulled from
STROBE, operation is normal. The threshold of the
input is 200mV, so an open-drain n-channel FET or
open-collector transistor driven from logic is recom-
mended (see Figure 5). The current-sinking ability
should be at least 500µA and the leakage current
should be 5µA or less. While shut down, the MX584
should not be required to source or sink current unless
a 0.7V residual output is acceptable. If the reference is
required to sink transient current while shut down, the
Current Limiter
By adding a single resistor as shown in Figure 8, the
MX584 is turned into a precision current limiter for
6
_______________________________________________________________________________________
Pin-Programmable, Precision Voltage
Reference
applications where the driving voltage is 5V to 40V. The
programmed current ranges from 0.75mA to 5mA.
Chip Topography
Negative 10V Reference
In applications which require a -10V, -7.5V, -5.0V, or
-2.5V reference, the MX584 can be connected as a
two-terminal device and biased like a zener diode. The
0.087"
(2.209mm)
CAP
V
BG
circuit is shown in Figure 9. +V and V
are connect-
OUT
S
ed to the analog ground bus, and the MX584’s COM-
MON pin is connected, through a resistor, to the
negative supply. With 1mA flowing in the reference, the
output voltage is typically 2mV greater than what is
obtained with the conventional, positive hook-up.
STROBE
+V
S
0.071"
When using the 2-terminal connection, the load and the
bias resistor must be selected so that the current flow-
ing in the reference is maintained between 1mA and
5mA. The operating temperature range for this connec-
tion is limited to -55°C to +85°C.
(1.803mm)
10.0V
5.0V
COMMON
Reference for DACs and ADCs
The MX584 is well suited for use with a wide variety of
DACs, especially CMOS DACs. Figure 10 shows a cir-
cuit in which an MX7533 10-bit DAC outputs 0 to -5V
when using a +5V reference. For a positive DAC out-
put, the MX584 can be configured as a two-terminal
negative reference as well by using the connection of
Figure 9.
2.5V
COMMON
Chip Information
TRANSISTOR COUNT: 72
In Figure 11, an MX7574 CMOS ADC uses an MX584,
connected for -2.5V, as its reference input so that the
system can operate from 5V power. The analog input
range for the circuit is 0V to +2.5V.
SUBSTRATE CONNECTED TO GND
_______________________________________________________________________________________
7
Pin-Programmable, Precision Voltage
Reference
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
8
_______________________________________________________________________________________
Pin-Programmable, Precision Voltage
Reference
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
_______________________________________________________________________________________
9
Pin-Programmable, Precision Voltage
Reference
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
INCHES
MILLIMETERS
DIM
A
MIN
MAX
0.069
0.010
0.019
0.010
MIN
1.35
0.10
0.35
0.19
MAX
1.75
0.25
0.49
0.25
0.053
0.004
0.014
0.007
N
A1
B
C
e
0.050 BSC
1.27 BSC
E
0.150
0.228
0.016
0.157
0.244
0.050
3.80
5.80
0.40
4.00
6.20
1.27
E
H
H
L
VARIATIONS:
INCHES
1
MILLIMETERS
DIM
D
MIN
MAX
0.197
0.344
0.394
MIN
4.80
8.55
9.80
MAX
5.00
N
8
MS012
AA
TOP VIEW
0.189
0.337
0.386
D
8.75 14
10.00 16
AB
D
AC
D
C
A
B
0∞-8∞
e
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0041
B
1
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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