AD706AN-AD706AR-AD706AR-REEL-AD706JN-AD706JR Fast Delivery |IC PHOENIX CO.,LIMITED

AD706JR ,Dual Picoampere Input Current Bipolar Op AmpSPECIFICATIONSAD706J/A AD706K/BParameter Conditions Min Typ Max Min Typ Max UnitsINPUT OFFSET VOLTA ..
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AD707AH ,Ultralow Drift Op AmpSpecifications in boldface are tested on all production units at final electrical test. Results fro ..
AD707AQ ,Ultralow Drift Op AmpCHARACTERISTICSVoltage R ≥ 10 kΩ 13.5 14 13.5 14 ±VLOADR ≥ 2 kΩ 12.5 13.0 12.5 13.0 ±VLOADR ≥ 1 kΩ ..
AD707AR ,Ultralow Drift Op AmpSpecifications subject to change without notice.REV. B–2–AD7071ABSOLUTE MAXIMUM RATINGSORDERING GUI ..
AD707BQ ,Ultralow Drift Op Ampapplications.0.1 μV/°C, and offset current drift and input bias current driftare both specified at ..
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ADC121S021CIMF ,Single Channel, 50 to 200 ksps, 12-Bit A/D Converter 6-SOT-23 -40 to 85Features 3 DescriptionThe ADC121S021 device is a low-power, single-1• Specified Over a Range of Sam ..
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AD706AN-AD706AR-AD706AR-REEL-AD706JN-AD706JR
Dual Picoampere Input Current Bipolar Op Amp
CONNECTION DIAGRAM
Plastic Mini-DIP (N)
Cerdip (Q) and
Plastic SOIC (R) Packages
OUTPUT
–IN
1IN
OUTPUT
–IN
1INV–
AMPLIFIER 1AMPLIFIER 2
FEATURE
HIGH DC PRECISION
50 mV max Offset Voltage
0.6 mV/8C max Offset Drift
110 pA max Input Bias Current
LOW NOISE
0.5 mV p-p Voltage Noise, 0.1 Hz to 10 Hz
LOW POWER
750 mA Supply Current
Available in 8-Lead Plastic Mini-DlP, Hermetic Cerdip
and Surface Mount (SOIC) Packages
Available in Tape and Reel in Accordance with
EIA-481A Standard
Single Version: AD705, Quad Version: AD704
PRIMARY APPLICATIONS
Low Frequency Active Filters
Precision Instrumentation
Precision Integrators
PRODUCT DESCRIPTION
The AD706 is a dual, low power, bipolar op amp that has the
low input bias current of a BiFET amplifier, but which offers a
significantly lower IB drift over temperature. It utilizes superbeta
bipolar input transistors to achieve picoampere input bias cur-
rent levels (similar to FET input amplifiers at room tempera-
ture), while its IB typically only increases by 5× at 125°C (unlike
a BiFET amp, for which IB doubles every 10°C for a 1000×
increase at 125°C). The AD706 also achieves the microvolt
offset voltage and low noise characteristics of a precision bipolar
input amplifier.
Since it has only 1/20 the input bias current of an OP07, the
AD706 does not require the commonly used “balancing” resis-
tor. Furthermore, the current noise is 1/5 that of the OP07,
which makes this amplifier usable with much higher source
impedances. At 1/6 the supply current (per amplifier) of the
OP07, the AD706 is better suited for today’s higher density
boards.
The AD706 is an excellent choice for use in low frequency
active filters in 12- and 14-bit data acquisition systems, in preci-
sion instrumentation and as a high quality integrator. The
AD706 is internally compensated for unity gain and is available
in five performance grades. The AD706J and AD706K are rated
over the commercial temperature range of 0°C to +70°C. The
AD706A and AD706B are rated over the industrial temperature
range of –40°C to +85°C.
The AD706 is offered in three varieties of an 8-lead package:
plastic mini-DIP, hermetic cerdip and surface mount (SOIC).
“J” grade chips are also available.
PRODUCT HIGHLIGHTSThe AD706 is a dual low drift op amp that offers BiFET
level input bias currents, yet has the low IB drift of a bipolar
amplifier. It may be used in circuits using dual op amps such
as the LT1024.The AD706 provides both low drift and high dc precision.The AD706 can be used in applications where a chopper
amplifier would normally be required but without the
chopper’s inherent noise.
Dual Picoampere Input
Current Bipolar Op Amp
REV.C
TEMPERATURE – 8C
TYPICAL I
– nA
–55+125+25+110
Figure 1.Input Bias Current vs. Temperature
AD706–SPECIFICATIONS
INPUT IMPEDANCE
INPUT VOLTAGE RANGE
INPUT CURRENT NOISE
INPUT VOLTAGE NOISE
OUTPUT CHARACTERISTICS
(@ TA = +258C, VCM = 0 V and 615 V dc, unless otherwise noted)
NOTESBias current specifications are guaranteed maximum at either input.Input bias current match is the difference between corresponding inputs (IB of –IN of Amplifier #1 minus IB of –IN of Amplifier #2).
CMRR match is the difference between
PSRR match is the difference between
All min and max specifications are guaranteed.
Specifications subject to change without notice.
AD706
ABSOLUTE MAXIMUM RATINGSl
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V
Internal Power Dissipation
(Total: Both Amplifiers)2 . . . . . . . . . . . . . . . . . . . . 650 mW
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VS
Differential Input Voltage3 . . . . . . . . . . . . . . . . . . . . +0.7 Volts
Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite
Storage Temperature Range (Q) . . . . . . . . . –65°C to +150°C
Storage Temperature Range (N, R) . . . . . . . –65°C to +125°C
Operating Temperature Range
AD706J/K . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
AD706A/B . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to +85°C
Lead Temperature (Soldering 10 secs) . . . . . . . . . . . . +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 affect device reliability.Specification is for device in free air:
8-Lead Plastic Package: θJA = 100°C/Watt
8-Lead Cerdip Package: θJA = 110°C/Watt
8-Lead Small Outline Package: θJA = 155°C/WattThe input pins of this amplifier are protected by back-to-back diodes. If the
differential voltage exceeds ±0.7 volts, external series protection resistors should
be added to limit the input current to less than 25mA.
ORDERING GUIDE
*N = Plastic DIP; Q = Cerdip, R = Small Outline Package.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000V readily
METALIZATION PHOTOGRAPH
Dimensions shown in inches and (mm).
Contact factory for latest dimensions.
AD706–Typical Characteristics(@ +258C, VS = 615V, unless otherwise noted)
Figure 2. Typical Distribution of Input
Offset Voltage
SUPPLY VOLTAGE – 6Volts
1VS5101520
–0.5
INPUT COMMON-MODE VOLTAGE LIMIT – Volts
(REFERRED TO SUPPLY VOLTAGES)
–VS
Figure 5.Input Common-Mode
Voltage Range vs. Supply Voltage
Figure 8. Typical Distribution of
Offset Voltage Drift
Figure 3. Typical Distribution of
Input Bias Current
FREQUENCY – Hz
OUTPUT VOLTAGE – Volts p-p1k10k1M100k
Figure 6. Large Signal Frequency
Response
WARM-UP TIME – Minutes01234
CHANGE IN OFFSET VOLTAGE –
Figure 9. Change in Input Offset
Voltage vs. Warm-Up Time
Figure 4. Typical Distribution of
Input Offset Current
SOURCE RESISTANCE – V
OFFSET VOLTAGE DRIFT –
0.11k10k100M
100k1M10M
Figure 7. Offset Voltage Drift vs.
Source Resistance
COMMON-MODE VOLTAGE – Volts
INPUT BIAS CURRENT – pA
–40
Figure 10. Input Bias Current vs.
Common-Mode Voltage
FREQUENCY – Hz
VOLTAGE NOISE – nV/
Figure 11. Input Noise Voltage
Spectral Density
SUPPLY VOLTAGE – 6 Volts
QUIESCENT CURRENT –
Figure 14. Quiescent Supply Current
vs. Supply Voltage
LOAD RESISTANCE – kV
OPEN-LOOP VOLTAGE GAIN
10M
100k1246810100
Figure 17. Open-Loop Gain vs. Load
Resistance vs. Load Resistance
FREQUENCY – Hz
CURRENT NOISE – fA/
Figure 12. Input Noise Current
Spectral Density
FREQUENCY – Hz
+1600.111010010k
+120
+140
+100
100k
+80
CMRR – dB+60
+40
+20
Figure 15. Common-Mode Rejection
Ratio vs. Frequency
Figure 18. Open-Loop Gain and
Phase Shift vs. Frequency
TIME – Seconds510
Figure 13. 0.1 Hz to 10 Hz Noise
Voltage
FREQUENCY – Hz
1800.111010010k
100k
PSRR – dB
Figure 16. Power Supply Rejection
Ratio vs. Frequency
SUPPLY VOLTAGE – 6 Volts
+VS5101520
+1.0
+0.5
+1.5
OUTPUT VOLTAGE SWING – Volts
(REFERRED TO SUPPLY VOLTAGES)
–VS
Figure 19. Output Voltage Swing vs.
Supply Voltage
AD706
FREQUENCY – Hz
–1601001k10k100k
CROSSTALK – dB
Figure 20a. Crosstalk vs. Frequency
Figure 20b. Crosstalk Test Circuit
FREQUENCY – Hz
0.1101001k10k
CLOSED-LOOP OUTPUT IMPEDANCE –
100k
Figure 21. Magnitude of Closed-Loop Output Impedance
vs. Frequency
VIN
0.1mF
2kVCL
SQUARE
WAVE
INPUT
–VS
Figure 22a. Unity Gain Follower (For Large Signal
Applications, Resistor RF Limits the Current
Through the Input Protection Diodes)
Figure 22b. Unity Gain Follower
Figure 22c. Unity Gain Follower
Figure 22d. Unity Gain Follower

Partno	Mfg	Dc	Qty	Available	Descript
AD706AN	AD	N/a	300	avai	Dual Picoampere Input Current Bipolar Op Amp
AD706AR	AD	N/a	1200	avai	Dual Picoampere Input Current Bipolar Op Amp
AD706AR-REEL \|AD706ARREEL	AD	N/a	1828	avai	Dual Picoampere Input Current Bipolar Op Amp
AD706JN	ADI	N/a	520	avai	Dual Picoampere Input Current Bipolar Op Amp
AD706JR	AD	N/a	13787	avai	Dual Picoampere Input Current Bipolar Op Amp