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Home ›  AA6 > AD1674AD-AD1674AR-AD1674BD-AD1674BR-AD1674J N-AD1674JN-AD1674JR-AD1674KN-AD1674KR-AD1674TD,12-Bit 100 kSPS A/D Converter
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AD1674ADADN/a300avai12-Bit 100 kSPS A/D Converter
AD1674ARADN/a200avai12-Bit 100 kSPS A/D Converter
AD1674BDADN/a19avai12-Bit 100 kSPS A/D Converter
AD1674BDADIN/a470avai12-Bit 100 kSPS A/D Converter
AD1674BRADN/a7avai12-Bit 100 kSPS A/D Converter
AD1674J N |AD1674JNADIN/a40avai12-Bit 100 kSPS A/D Converter
AD1674JNADN/a300avai12-Bit 100 kSPS A/D Converter
AD1674JNADIN/a600avai12-Bit 100 kSPS A/D Converter
AD1674JRADN/a6avai12-Bit 100 kSPS A/D Converter
AD1674KNADN/a200avai12-Bit 100 kSPS A/D Converter
AD1674KRADIN/a7avai12-Bit 100 kSPS A/D Converter
AD1674TDADC N/a14avai12-Bit 100 kSPS A/D Converter


AD1674JN ,12-Bit 100 kSPS A/D ConverterSPECIFICATIONS –12 V 6 5% unless otherwise noted)AD1674J AD1674KParameter Min Typ Max Min Typ Max U ..
AD1674JN ,12-Bit 100 kSPS A/D Converterspecifications are guaranteed.
AD1674JR ,12-Bit 100 kSPS A/D Converterspecifications, the AD1674 is SHA.ideal for use in signal processing and traditional dc measure-4. ..
AD1674KN ,12-Bit 100 kSPS A/D ConverterSPECIFICATIONS –12 V 6 5% unless otherwise noted)AD1674J AD1674KParameter Min Typ Max Min Typ Max U ..
AD1674KR ,12-Bit 100 kSPS A/D Converterapplications.bipolar offset resistors provide four calibrated ranges:The AD1674 design is implement ..
AD1674TD ,12-Bit 100 kSPS A/D Converterspecifications, the AD1674 is SHA.ideal for use in signal processing and traditional dc measure-4. ..
AD8240YRM ,LED Driver/Monitorspecifications by selecting the value of the external current shunt that causes that match the app ..
AD824AN ,Single Supply, Rail-to-Rail Low Power, FET-Input Op AmpCHARACTERISTICSOutput Voltage High V I = 20 μA 4.975 4.988 VOH SOURCET to T 4.97 4.985 VMIN MAXI = ..
AD824AR ,Single Supply, Rail-to-Rail Low Power, FET-Input Op AmpCHARACTERISTICSOffset Voltage AD824A V 0.5 2.5 mVOST to T 0.6 4.0 mVMIN MAXOffset Voltage AD8 ..
AD824AR-14 ,Single Supply, Rail-to-Rail Low Power, FET-Input Op AmpApplications for the AD824 include portable medical equipment,swings to within 15 millivolts of the ..
AD824AR-14 ,Single Supply, Rail-to-Rail Low Power, FET-Input Op AmpCHARACTERISTICSOffset Voltage AD824A V 0.1 1.0 mVOST to T 1.5 mVMIN MAXOffset Voltage AD824B ..
AD824AR-16 ,Single Supply, Rail-to-Rail Low Power, FET-Input Op Ampapplications where low input current is a primary+IN B 5 12 +IN Cconsideration.–IN B 6 11 –IN CThe ..


AD1674AD-AD1674AR-AD1674BD-AD1674BR-AD1674J N-AD1674JN-AD1674JR-AD1674KN-AD1674KR-AD1674TD
12-Bit 100 kSPS A/D Converter
FUNCTIONAL BLOCK DIAGRAM
REV.C12-Bit 100 kSPS
A/D Converter
FEATURES
Complete Monolithic 12-Bit 10 ms Sampling ADC
On-Board Sample-and-Hold Amplifier
Industry Standard Pinout
8- and 16-Bit Microprocessor Interface
AC and DC Specified and Tested
Unipolar and Bipolar Inputs

65 V, 610 V, 0 V–10 V, 0 V–20 V Input Ranges
Commercial, Industrial and Military Temperature
Range Grades
MIL-STD-883 and SMD Compliant Versions Available
PRODUCT DESCRIPTION

The AD1674 is a complete, multipurpose, 12-bit analog-to-
digital converter, consisting of a user-transparent onboard
sample-and-hold amplifier (SHA), 10 volt reference, clock and
three-state output buffers for microprocessor interface.
The AD1674 is pin compatible with the industry standard
AD574A and AD674A, but includes a sampling function while
delivering a faster conversion rate. The on-chip SHA has a wide
input bandwidth supporting 12-bit accuracy over the full
Nyquist bandwidth of the converter.
The AD1674 is fully specified for ac parameters (such as S/(N+D)
ratio, THD, and IMD) and dc parameters (offset, full-scale
error, etc.). With both ac and dc specifications, the AD1674 is
ideal for use in signal processing and traditional dc measure-
ment applications.
The AD1674 design is implemented using Analog Devices’
BiMOS II process allowing high performance bipolar analog cir-
cuitry to be combined on the same die with digital CMOS logic.
Five different temperature grades are available. The AD1674J
and K grades are specified for operation over the 0°C to +70°C
temperature range. The A and B grades are specified from
–40°C to +85°C; the AD1674T grade is specified from –55°C
to +125°C. The J and K grades are available in both 28-lead
plastic DIP and SOIC. The A and B grade devices are available
in 28-lead hermetically sealed ceramic DIP and 28-lead SOIC.
The T grade is available in 28-lead hermetically sealed ceramic
DIP.
*Protected by U. S. Patent Nos. 4,962,325; 4,250,445; 4,808,908; RE30586.
PRODUCT HIGHLIGHTS
Industry Standard Pinout: The AD1674 utilizes the pinout
established by the industry standard AD574A and AD674A.Integrated SHA: The AD1674 has an integrated SHA which
supports the full Nyquist bandwidth of the converter. The
SHA function is transparent to the user; no wait-states are
needed for SHA acquisition.DC and AC Specified: In addition to traditional dc specifica-
tions, the AD1674 is also fully specified for frequency do-
main ac parameters such as total harmonic distortion,
signal-to-noise ratio and input bandwidth. These parameters
can be tested and guaranteed as a result of the onboard
SHA.Analog Operation: The precision, laser-trimmed scaling and
bipolar offset resistors provide four calibrated ranges:
0 V to +10 V and 0 V to +20 V unipolar, –5 V to +5 V and
–10 V to +10 V bipolar. The AD1674 operates on +5 V and
±12 V or ±15 V power supplies.Flexible Digital Interface: On-chip multiple-mode
three-state output buffers and interface logic allow direct
connection to most microprocessors.
AD1674–SPECIFICATIONS
DC SPECIFICATIONS

FULL-SCALE ERROR
TEMPERATURE DRIFT
POWER SUPPLY REJECTION
ANALOG INPUT
NOTESAdjustable to zero.Includes internal voltage reference error.Maximum change from 25°C value to the value at TMIN or TMAX.Reference should be buffered for ±12 V operation.
All min and max specifications are guaranteed.
(TMIN to TMAX, VCC = +15 V 6 10% or +12 V 6 5%, VLOGIC = +5 V 6 10%, VEE = –15 V 6 10% or
–12 V 6 5% unless otherwise noted)
AD1674
AD1674–SPECIFICATIONS
AC SPECIFICATIONS
DIGITAL SPECIFICATIONS

NOTESfIN amplitude = –0.5 dB (9.44 V p-p) 10 V bipolar mode unless otherwise noted. All measurements referred to –0 dB (9.997 V p-p) input signal unless
otherwise noted.Specified at worst case temperatures and supplies after one minute warm-up.See Figures 12 and 13 for other input frequencies and amplitudes.See Figure 11.fa = 9.08 kHz, fb = 9.58 kHz with fSAMPLE = 100 kHz. See Definition of Specifications section and Figure 15.
All min and max specifications are guaranteed.
Specifications subject to change without notice.
(TMIN to TMAX, with VCC = +15 V 6 10% or +12 V 6 5%, VLOGIC = +5 V 6 10%, VEE = –15 V 610% or
–12 V 6 5%, fSAMPLE = 100 kSPS, fIN = 10 kHz, stand-alone mode unless otherwise noted)1
(for all grades TMIN to TMAX, with VCC = +15 V 6 10% or +12 V 6 5%, VLOGIC = +5 V 6 10%,
VEE = –15 V 6 10% or –12 V 6 5%)
(for all grades TMIN to TMAX with VCC = +15 V 6 10% or +12 V 6 5%,
VLOGIC = +5 V 610%, VEE = –15 V 6 10% or –12 V 6 5%; VIL = 0.4 V,
VIH = 2.4 V unless otherwise noted)SWITCHING SPECIFICATIONS
CONVERTER START TIMING (Figure 1)
READ TIMING—FULL CONTROL MODE (Figure 2)

NOTEStDD is measured with the load circuit of Figure 3 and is defined as the time
required for an output to cross 0.4 V or 2.4 V.0°C to TMAX.At –40°C.At –55°C.tHL is defined as the time required for the data lines to change 0.5 V when
loaded with the circuit of Figure 3.
All min and max specifications are guaranteed.
Specifications subject to change without notice.CE
STS
DB11 – DB0
R/C

Figure 1.Converter Start Timing
Figure 2.Read Timing
Figure 3.Load Circuit for Bus Timing Specifications
AD1674
ORDERING GUIDE
TIMING—STAND-ALONE MODE (Figures 4a and 4b)

STS Delay from R/C
STS Delay After Data Valid
NOTE
All min and max specifications are guaranteed.
Specifications subject to change without notice.
WARNING!
ESD SENSITIVE DEVICE
CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD1674 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
STS
DB11 – DB0
R/C
tHRLtHDR

Figure 4a.Stand-Alone Mode Timing Low Pulse for R/C
Figure 4b. Stand-Alone Mode Timing High Pulse for R/C
ABSOLUTE MAXIMUM RATINGS*

VCC to Digital Common . . . . . . . . . . . . . . . . . . .0 to + 16.5 V
VEE to Digital Common . . . . . . . . . . . . . . . . . . . . .0 to –16.5 V
VLOGIC to Digital Common . . . . . . . . . . . . . . . . . .0 V to +7 V
Analog Common to Digital Common . . . . . . . . . . . . . . .±1 V
Digital Inputs to Digital Common . . .–0.5 V to VLOGIC +0.5 V
Analog Inputs to Analog Common . . . . . . . . . . . .VEE to VCC
20 VIN to Analog Common . . . . . . . . . . . . . . . . .VEE to +24 V
REF OUT . . . . . . . . . . . . . . . . .Indefinite Short to Common
. . . . . . . . . . . . . . . . . . . . . . . . . . .Momentary Short to VCC
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . .+175°C
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . .825 mW
Lead Temperature, Soldering (10 sec) . . . . . . .+300°C, 10 sec
Storage Temperature . . . . . . . . . . . . . . . . . . .–65°C to +150°C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
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