AD2702LD ,± 10 Volt Precision Reference SeriesFEATURES
V-ry High Amuney: 10.!!!) Volt: $2.5IIIV (L and U)
Low Temperature Cocffici-nt: 3ppmt' ..
AD2712KN ,+(-) 10.000 Volt Ultrahigh Precision Reference Seriesapplications requiring both the lowest possible initial error
at room temperature and the lowest p ..
AD2712LN ,+(-) 10.000 Volt Ultrahigh Precision Reference Seriesapplications requiring high accuracy and stability.
The AD2710 is recommended for use as a refer ..
AD28MSP01 ,PSTN Signal Portfeatures indepen-sion, filtering, and clock generation circuitry needed to imple- dent phase advanc ..
AD28MSP01KN ,PSTN Signal Portfeatures indepen-sion, filtering, and clock generation circuitry needed to imple- dent phase advanc ..
AD28MSP01KP ,PSTN Signal PortCharacteristics.” Refer to “Analog Input” in the “Designwhose frequency is programmable via Control ..
AD8532AR ,Low Cost, 250 mA Output Single-Supply AmplifiersSpecifications subject to change without notice.–2– REV. BAD8531/AD8532/AD8534(@ V = +5.0 V, V = 2. ..
AD8532ARM ,Low Cost, 250 mA Output Single-Supply AmplifiersAPPLICATIONS8-Lead Epoxy DIPMultimedia Audio8-Lead SO(N Suffix)LCD Driver(R Suffix)ASIC Input or Ou ..
AD8532ARM-REEL ,Low Cost, 250 mA Output Dual-Supply AmplifiersCHARACTERISTICSOutput Voltage High V I = 10 mA 2.85 2.92 VOH L–40∞C £ T £ +85∞C 2.8 VAOutput Voltag ..
AD8532AR-REEL ,Low Cost, 250 mA Output Dual-Supply AmplifiersGENERAL DESCRIPTION+IN A 3 6 OUT AThe AD8531, AD8532, and AD8534 are single, dual and quadV– 4 5 NU ..
AD8532AR-REEL7 ,Low Cost, 250 mA Output Dual-Supply AmplifiersCHARACTERISTICSOffset Voltage V 25 mVOS–40∞C £ T £ +85∞C30mVAInput Bias Current I 550 pAB–40∞C £ T ..
AD8532ARU ,Low Cost, 250 mA Output Single-Supply AmplifiersCHARACTERISTICSOutput Voltage High V I = 10 mA 2.85 2.92 VOH L–40
AD2702JD-AD2702LD
+ 10 Volt Precision Reference
ANALOG
DEVICES
:10 Volt Precision
Reference Series
AD2700/AD2701/AD2702
FEATURES
Very High Accuracy: 10.000 Volts 12.5mV (L and U)
Low Temperature Coefficient: 3ppm/'C
Nrfortttttnett Guaranteed -55°c to +125°C
10mA Output Current Capability
Low Noise
Short Circuit Protected
Available a [8838
PRODUCT' DESCRIPTION
The AD2700 family of precision 10 volt references offer the
user excellent accuracy and stability at a moderate price by
combining the recognized advantages of thin film technology
and active laser trimming. The low temperature drift
(3ppm/° C) achieved with these technologies can be matched
only by the use of ovens, chip heaters for temperature regu-
lation, or with hand selected components and manual trim-
ming. In addition, .toeyperatuTregelated devices are guaran-
teed only up to o8So C operation, whereas the U- and S-grade
devices In the AD2700 family are guaranteed to +125° C.
The AD2700 is a +10 volt reference which Is designed to
interface with high accuracy bipolar D/A converters of 10
and 12 bit resolution. The lOmA output drive capability
also makes the AD2700 ideal for use as a general positive
system reference.
The AD2701 is a negative 10 volt reference especially de-
signed to interface with CMOS D/A and AID converters, as
shown in the applications. For systems requiring a dual tracking
reference, the AD2702 offers both positive and negative preci-
sion 10 volt outputs in a single package. Both are often used
with 52XX Series 12-bit A/D converters which require
-lOV external references for high accuracy over wide
temperature ranges.
All three devices are offered In 'T' and "L" grades for opera-
le, from -2s'' f to +85 °C and "s" and "U'' grades for the
~55 "c to +125 "c temperature range. Screening to MIL-STD-
883 is available for "s" and "U'' grades of the AD2700
family.
Infotmltion furnished by Analog Devices is believed to be ”curate
and reliable. Hm. no mulbllity is assumed by Analog Devices
for its use; not for any Infringements of patent: or other rights of third
parties which may result hem its nu. No license ls granted by implica-
tion or otherwise under any mm or patent rights of Analog Devices.
REV. B
FUNCTIONAL BLOCK DIAGRAMS
ADJUST
. t 5.0V
AD2700
-15.0V
ADJUST
PRODUCT HIGHLIGHTS
l, Active laser trimming of both initial accuracy and temper-
ature performance results in very high accuracy over the
temperature range without external components The
AD2700/Ol/02 LD ogrades have a maximum output
voltage error at 25° C of t2. SmV with no external
adjustments.
2. The performance of the AD2700 series is achieved by a
weIl-characterized design and precise control over the
m'anufacturing process.
3. The AD2700 series is well suited for a broad range of
applications requiring an accurate, stable reference source
such as high resolution data converters (12 or 14 bits),
test and measurement systems and calibration standards.
Model Output
AD2700 +10.000V
AD2701 -1o.ooov
AD2702 i 10.000V
P.O. Box 280; Norwood, Massachusetts 02062 U.S.A.
Tel: 617/3294700 wa: 710/394-6577
Telex: 924491 Cables: ANALOG NORWOODMASS
M27ilMalN1/ll027il2 --SPEtlllr0m01G t1'by1ff'1gtshtd2ii2'ilii.f'
MODEL JD LD SD UD
ABSOLUTE MAX RATINGS .
Input Voltage (for applicable supply) MOV . .
Power Dissipation Gl o2s''C - AD2700, 01 300mw . . .
- AD2 702 450mw . . o o .
Operating Temperature Range -25:C to ttls . -55 C to +125 C ".
Storage Temperature Range -65 C to +150 C . . .
Lead Temperature (soldering, los) +300°C . . .
Short Circuit Protection (to GND) Continuous . . q
OUTPUT VOLTAGE ERROR Gl o2s''c
AD2700 10.000v 10.0osv 10.00st ..
AD2701 -10.000v 10.005v 10.00st "
AD2702 :10.ooov M.005V 10.0025v ..
OUTPUT CURRENT' - G) +2s°c thmA . .
(VIN = 213 to ti8V) over op. temp. range MmA oSmA, -2mA .. ..
OUTPUT VOLTAGE ERROR - AD2700,01 1oppm/°c 3pprnf'c .. ..
(Trnin to Tmu)‘ 111.0mV $4.3mV 28tttV tS.SmV
AD2702 1opprntoc Sppm/'c .. 3ppm/°C
1t1.0mV 15.5mV tl0.0mV 15.5mV
LINE REGULATION
Vit: = 113.5 to 116.5V soouwv .
LOAD REGULATION
o to zlomA SOpV/mA ' . .
OUTPUT RESISTANCE o.osn . . .
INPUT VOLTAGE, OPERATING nsv to nav . . q
QUIESCENT CURRENT - AD2700, ot 114mA . .
- AD2702 +17mA, -4mA . .
(0.1 to 10m) souv PT typ . . .
LONG TERM STABILITY (Q +ss°c> 100ppm/1000 Hrs. (typ) . . .
OFFSET ADJUST RANGE
(Sec Diagrams) A20mv (min) q . "
OFFSET ADJUST TEMP DRIFT EFFECT tov/''c per mV
of Adjust (typ) . . .
PACKAGE OPTION'.' DH-14C DH-14c DH-14C DH-14C
"same " "JD'' grade performance.
"Same " "LD" grade performance.
"‘Sune " "SD" grade performance.
'Specified with resistive lord to common. Device not intended for
use in driving a dynamic lord.
'Output voltage cm): a a function of tcmpenmre is determined using the box method.
Each unit is tested n Tmin. mex and otfc. At end: tempcnture vour must fall
within the recungulu urn bounded by the minimum and muimum temperature and
whose maximum VOUT vdue is equal to votrr nominnl plus or minus the maximum
o2S''C error plus the maximum drift error from o2fC. The box limits ue noted
below the drift vdues used to calculate the box.
’Amlog Device: - the right to ship Iide-brued cenmic pu e:
(outline DH-HD) in lieu of the sundud cenmic pnckqu for) m
I. grade puts."
‘See Section 14 for pukqe outline information.
Specifications abject t0 dung: without notice.
REV. B
M27llMiil2N1/M2Nll
FINE If, FINE
Ammo: "0.0tn VOLT REFERENCE
NICNICNIC
VINE Vogy VINE
't,j,t,)(i)gl,,),ti)i,,ul:,y,
45 '00”
"ib''th'75'ti')'i't'ii5t''i5
NICNIC
11mm. "tum VOLT REFERENCE
(:l,),t,,)t,j,gl,,ytl,o,
MIC me NIC NIC COMMON
FINE V FINE
dsytly
Am Wm“ us HNHT "
'ii''fiipiiisty'ii'j'ir'
mm; 110.000 VOLT REFERENCE
(bdtlydydsy
NIC " COMMON
nu: .10 nut -15
mm MourADJU8T
Pin Designations
USING AD2700 REFERENCE WITH THE W520
AND AN 1C AMPLIFIER TO BUILD A DAC
The AD2700 series is ideal for use with the AD7$20 series of
CMOS D/A converters. A CMOS converter in tt unipolar appli-
cation " shown below performs an inversion of the voltage
reference input. Thus, use of the +10 volt AD2700 reference
will result in a o to -10 volt output range. Alternatively. using
otW km "' FOR A0370"
''---n
tttT , (M88)
o-.---- '
DIOIYAI. I
tteur I
o--'--" "
"1’ " (L38)
Amsattt
Unipolar Binary Opera tion
DIGITAL INPUT
ANALOG OUTPUT
-VREF (1 - Ttoy
NR” (1/2 + 2'10)
NOTE.. 11.53- r" VREF
-VREF (1/2 - 2'10)
"her (2'10)
Tabla t. Cod: Table - Unipolar Binary Operation
REV. B
ttIN . -
" 6 3 t
3 Your " dam
Moor . 40m
vow " "0.00011
*EXYERNAL 101 POTENTIWETEH
PROVIDES t30mV OUTPUT OFF-
SET ADJUST. TEMPERATURE
EFFECT IS "Aft" PER mVOF
OFFSET CORRECYION (EXTER-
ADJUSTMENT OPTlONAU.
Fine Trim Connections
the -10 volt AD2701 will result in a 0 to +10 volt range. Two
operational amplifiers are used to give a bipolar output range
of -10 volt to +10 volt, as shown
in the lower figure. Either
the AD2700 or AD2701 can be used, depending on the trans-
fer code characteristic desired. For more detailed applications
information. refer to the AD7520 Data Sheet.
o-".'-'-"''-''' "
tttr MEGOHM
"fltbucl
01mm. l
INPUT t
t 112::111 '
tur " [L381
Bipolar Operation '(4-0uadrant Multiplication)
DIGITAL INPUT
ANALOG OUTPUT
'VREF (1 - r9)
1000000001 ‘Vaa1=<2'9)
1000000000 0
0111111111 VREFO")
0000000001 VREF(1'2'9)
0000000000 V1121
NOTE.1LSB 2 VREF
Table II. Code Table - Bipolar (Offset Binary) Operation
MflM/liimWMflml
USING THE AD2700 VOLTAGE REFERENCE WITH
D/A CONVERTER
An AD2700 Voluge Reference can be used with an inverting
operational amplifier and an R-2R ladder network. If all bits
but the MSB are off (i.e., grounded). the output voltage is
(-R/2R)EREF. If all bits but Bit 2 are off, it cm be shown
that the output voltage is 56(-R/2R)EREF = “BREE: The
lumped resistance of all the less-significant-bit circuitry (to
the left of Bit 2) is 2R; the Thevenin equivalent looking
back from the MSB towards Bit 2 is the generator, EREF/Z,
and the series resistance 2R; since the grounded MSB series
DIGITAL INPUT CODE
L88 T 'T ll
TERMINAYION
a. Basic Circuit
resistance, 2R, has virtually no influence - because the
amplifier summing point is " virtual ground - the output
voltage is therefore 'EREFM' The same line of thinking can
be employed to show that the nth bit produces an increment
of output equal to 2'n EREF.
mr 2 SWITCH CLOSED
, LUWED RESISTANCE
OF LESSIGNIHCANT BITS
b. Example: Contribution of Bit 2; All Other Bits "o"
c. Simplified Equivalent of Circuit ftrd
PACKAGE DIMENSIONS
Dimensions Ihovm in inches end (mm).
F------ NO2M2. ----H
015' (22.0,
TO VIEW
on: nu)
Af, ' " pong
" on: (ma) - I
l IDENTIFIER
”UAREDOFF
9413.119.”
0.410 ttom
tt29NMI f
0.2“ 16.2t) L
GLASS “AD -
"MMFFS
0.17s tq.6N J L,
'j.,,.,.,....
--ll----ll--
one run cm: (0.4"
Hemttttiealty ulbd IWin DuII-In-LlnI (Gross leak tasted pet MIL.STD4t83. Method 1014)
Pin 7 is electrically eomeebd to the cue. Ca: he: metal bottom surface.
14-Pln DuaI-In-Llne Metal Package
ti',%tBr
tlmlttill
Pam tWe,
'ri"''''''"' WAN) _r
--"-T Hum tf I - 'i"'"'''
*W tr,,y,z,a,etl-'-
14-Pin DuaI-In-L Ina Ceramic Paakage
REV. B
03503—8—8/83
PRINTED IN USA.
