AD629ARZ-AD629ARZ-R7 Fast Delivery |IC PHOENIX CO.,LIMITED

AD629ARZ-R7 ,High Common-Mode Voltage Difference AmplifierSPECIFICATIONS A S AD629A AD629BParameter Condition Min Typ Max Min Typ Max UnitGAIN ..
AD629B ,High Common-Mode Voltage Difference AmplifierSPECIFICATIONS A S AD629A AD629BParameter Condition Min Typ Max Min Typ Max UnitGAIN ..
AD629BR ,High Common-Mode Voltage Difference AmplifierAPPLICATIONStransients up to ±500 V.High Voltage Current SensingThe AD629 has low offset, low offse ..
AD629BRZ , High Common-Mode Voltage, Difference Amplifier
AD630AD ,Balanced Modulator/DemodulatorCHARACTERISTICSAD630SD/883B –55°C to +125°C Side Brazed DIP D-205962-8980701RA –55°C to +125°C Side ..
AD630AD ,Balanced Modulator/Demodulatorspecifications are guaranteed, although only those shown in boldface are tested on all production u ..
AD9983AKCPZ-170 , High Performance 8-Bit Display Interface
AD9983AKSTZ-140 , High Performance 8-Bit Display Interface
AD9985ABSTZ-110 , 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays
AD9985ABSTZ-110 , 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays
AD9985AKSTZ-110 , 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays
AD9985AKSTZ-110 , 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays

AD629ARZ-AD629ARZ-R7
High Common-Mode Voltage Difference Amplifier
REV. A
High Common-Mode Voltage
Difference Ampliﬁer
FEATURES
Improved Replacement for:
INA117P and INA117KU
�270 V Common-Mode Voltage Range
Input Protection to:
�500 V Common Mode
�500 V Differential
Wide Power Supply Range (�2.5 V to �18 V)
�10 V Output Swing on �12 V Supply
1 mA Max Power Supply Current
HIGH ACCURACY DC PERFORMANCE
3 ppm Max Gain Nonlinearity
20 �V/�C Max Offset Drift (AD629A)
10 �V/�C Max Offset Drift (AD629B)
10 ppm/�C Max Gain Drift
EXCELLENT AC SPECIFICATIONS
77 dB Min CMRR @ 500 Hz (AD629A)
86 dB Min CMRR @ 500 Hz (AD629B)
500 kHz Bandwidth
APPLICATIONS
High Voltage Current Sensing
Battery Cell Voltage Monitor
Power Supply Current Monitor
Motor Control
Isolation
FUNCTIONAL BLOCK DIAGRAM
8-Lead Plastic Mini-DIP (N) and SOIC (R) Packages
GENERAL DESCRIPTION
The AD629 is a difference amplifier with a very high input
common-mode voltage range. It is a precision device that
allows the user to accurately measure differential signals in the
presence of high common-mode voltages up to ±270 V.
The AD629 can replace costly isolation amplifiers in applications
that do not require galvanic isolation. The device will operate
over a ±270 V common-mode voltage range and has inputs
that are protected from common-mode or differential mode
transients up to ±500 V.
The AD629 has low offset, low offset drift, low gain error drift,
as well as low common-mode rejection drift, and excellent CMRR
over a wide frequency range.
The AD629 is available in low-cost, plastic 8-lead DIP and
SOIC packages. For all packages and grades, performance is
guaranteed over the entire industrial temperature range from
–40°C to +85°C.
FREQUENCY – Hz
COMMON-MODE REJECTION RATIO
dB10k20k
Figure 1.Common-Mode Rejection Ratio vs. Frequency
Figure 2.Common-Mode Operating Range. Error Voltage
vs. Input Common-Mode Voltage
AD629–SPECIFICATIONS
OFFSET VOLTAGE
OUTPUT
POWER SUPPLY
TEMPERATURE RANGE
NOTESSee Figure 19.
Specifications subject to change without notice.
(TA = 25�C, VS = �15 V unless otherwise noted)
ABSOLUTE MAXIMUM RATINGS1
Supply Voltage VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Internal Power Dissipation2
DIP (N) . . . . . . . . . . . . . . . . . . . . . . . . See Derating Curves
SOIC (R) . . . . . . . . . . . . . . . . . . . . . . . See Derating Curves
Input Voltage Range, Continuous . . . . . . . . . . . . . . . . ±300 V
Common-Mode and Differential, 10 sec . . . . . . . . . . . ±500 V
Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite
Pin 1, Pin 5 . . . . . . . . . . . . . . . . . . –VS – 0.3 V to +VS + 0.3 V
Maximum Junction Temperature . . . . . . . . . . . . . . . . . 150°C
Operating Temperature Range . . . . . . . . . . –55°C to +125°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature Range (Soldering 60 sec) . . . . . . . . . 300°C
NOTESStresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; 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 effect device reliability.Specification is for device in free air: 8-Lead Plastic DIP, θJA = 100°C/W; 8-Lead
SOIC Package, θJA = 155°C/W.
AMBIENT TEMPERATURE – �C
MAXIMUM POWER DISSIPATION
Watts
–40–30–20–100102030405060708090
Figure 3.Derating Curve of Maximum Power Dissipation
vs. Temperature for SOIC and PDIP Packages
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.
THEORY OF OPERATION
The AD629 is a unity gain differential-to-single-ended amplifier
(Diff Amp) that can reject extremely high common-mode
signals (in excess of 270 V with 15 V supplies). It consists of an
operational amplifier (Op Amp) and a resistor network.
In order to achieve high common-mode voltage range, an internal
resistor divider (Pin 3, Pin 5) attenuates the noninverting signal
by a factor of 20. Other internal resistors (Pin 1, Pin 2, and the
feedback resistor) restores the gain to provide a differential gain
of unity. The complete transfer function equals:
VOUT = V (+IN) – V (–IN)
Laser wafer trimming provides resistor matching so that common-
mode signals are rejected while differential input signals are
amplified.
The op amp itself, in order to reduce output drift, uses super
beta transistors in its input stage The input offset current and
its associated temperature coefficient contribute no appreciable
output voltage offset or drift. This has the added benefit of
reducing voltage noise because the corner where 1/f noise becomes
dominant is below 5 Hz. In order to reduce the dependence of
gain accuracy on the op amp, the open-loop voltage gain of the
op amp exceeds 20 million, and the PSRR exceeds 140 dB.
Figure 4.Functional Block Diagram
ORDERING GUIDE
NOTES13" Tape and Reel of 2500 each7" Tape and Reel of 1000 each
AD629
–Typical Performance Characteristics
FREQUENCY – Hz
COMMON-MODE REJECTION RATIO
dB10k100k10M
Figure 5.Common-Mode Rejection Ratio vs. Frequency
Figure 6. Typical Gain Error Normalized @ VOUT = 0 V and
Output Voltage Operating Range vs. Supply Voltage,
RL = 10 kΩ (Curves Offset for Clarity)
Figure 7.Typical Gain Error Normalized @ VOUT = 0 V
and Output Voltage Operating Range vs. Supply Voltage,
POWER SUPPLY VOLTAGE – �Volts
COMMON-MODE VOLTAGE
Volts
120
Figure 8.Common-Mode Operating Range vs. Power
Supply Voltage
Figure 9.Typical Gain Error Normalized @ VOUT = 0 V and
Output Voltage Operating Range vs. Supply Voltage,
RL = 2 kΩ (Curves Offset for Clarity)
Figure 10.Typical Gain Error Normalized @ VOUT = 0 V
and Output Voltage Operating Range vs. Supply Voltage
(@25�C, VS = �15 V unless otherwise noted)
Figure 11.Gain Nonlinearity; VS = ±15 V, RL =10 kΩ
Figure 12.Gain Nonlinearity; VS = ±12 V, RL =10 kΩ
Figure 13.Gain Nonlinearity; VS = ±5 V, RL =1 kΩ
Figure 14.Gain Nonlinearity; VS = ±15 V, RL = 2 kΩ
Figure 15.Output Voltage Operating Range vs. Output
Current; VS = ±15 V
OUTPUT CURRENT – mA
OUTPUT VOLTAGE
Volts
–9.0
Figure 16.Output Voltage Operating Range vs. Output
Current; VS = ±12 V
AD629
Figure 17.Output Voltage Operating Range vs. Output
Current; VS = ±5 V
FREQUENCY – Hz
POWER SUPPLY REJECTION RATIO
dB
1001k1010k
Figure 18.Power Supply Rejection Ratio vs. Frequency
FREQUENCY – Hz
0.01
1001k1010k100k
Figure 19.Voltage Noise Spectral Density vs. Frequency
Figure 20.Small Signal Pulse Response; G = 1, RL = 2 kΩ
Figure 21.Small Signal Pulse Response; G = 1, RL = 2kΩ,
CL = 1000 pF
Figure 22.Large Signal Pulse Response; G = 1,
RL = 2 kΩ, CL = 1000 pF

Partno	Mfg	Dc	Qty	Available	Descript
AD629ARZ	AD	N/a	88	avai	High Common-Mode Voltage Difference Amplifier
AD629ARZ-R7 \|AD629ARZR7	AD	N/a	2500	avai	High Common-Mode Voltage Difference Amplifier