AD711AH Analog Devices, AD711AH Datasheet

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AD711AH

Manufacturer Part Number
AD711AH
Description
+-22V; 500mW; precision, low cost, high speed, BiFET Op Amp
Manufacturer
Analog Devices
Datasheet

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a
PRODUCT DESCRIPTION
The AD711 is a high speed, precision monolithic operational
amplifier offering high performance at very modest prices. Its
very low offset voltage and offset voltage drift are the results of
advanced laser wafer trimming technology. These performance
benefits allow the user to easily upgrade existing designs that use
older precision BiFETs and, in many cases, bipolar op amps.
The superior ac and dc performance of this op amp makes it
suitable for active filter applications. With a slew rate of 16 V/µs
and a settling time of 1 µs to ± 0.01%, the AD711 is ideal as a
buffer for 12-bit D/A and A/D Converters and as a high-speed
integrator. The settling time is unmatched by any similar IC
amplifier.
The combination of excellent noise performance and low input
current also make the AD711 useful for photo diode preamps.
Common-mode rejection of 88 dB and open loop gain of
400 V/mV ensure 12-bit performance even in high-speed unity
gain buffer circuits.
The AD711 is pinned out in a standard op amp configuration
and is available in seven performance grades. The AD711J and
AD711K are rated over the commercial temperature range of
0°C to 70°C. The AD711A, AD711B and AD711C are rated
over the industrial temperature range of –40°C to +85°C. The
AD711S and AD711T are rated over the military temperature
range of –40°C to +125°C and are available processed to MIL-
STD-883B, Rev. C.
Extended reliability PLUS screening is available, specified over
the commercial and industrial temperature ranges. PLUS
screening includes 168 hour burn-in, as well as other environ-
mental and physical tests.
The AD711 is available in an 8-pin plastic mini-DIP, small
outline, cerdip, TO-99 metal can, or in chip form.
PRODUCT HIGHLIGHTS
1. The AD711 offers excellent overall performance at very
2. Analog Devices’ advanced processing technology and 100%
3. Along with precision dc performance, the AD711 offers
4. The AD711 has a guaranteed and tested maximum voltage
5. Analog Devices’ well-matched, ion-implanted JFETs ensure
competitive prices.
testing guarantee a low input offset voltage (0.25 mV max,
C grade, 2 mV max, J grade). Input offset voltage is specified
in the warmed-up condition. Analog Devices’ laser wafer
drift trimming process reduces input offset voltage drifts to
3 µV/°C max on the AD711C.
excellent dynamic response. It settles to ± 0.01% in 1 µs and
has a 100% tested minimum slew rate of 16 V/µs. Thus this
device is ideal for applications such as DAC and ADC
buffers which require a combination of superior ac and dc
performance.
noise of 4 µV p-p, 0.1 to 10 Hz (AD711C).
a guaranteed input bias current (at either input) of 25 pA
max (AD711C) and an input offset current of 10 pA max
(AD711C). Both input bias current and input offset current
are guaranteed in the warmed-up condition.
High Speed, BiFET Op Amp
INVERTING
NOTE
PIN 4 CONNECTED TO CASE
INVERTING
INPUT
NONINVERTING
OFFSET
INPUT
CONNECTION DIAGRAMS
NON
NULL
INVERTING
NC = NO CONNECT
OFFSET
INPUT
INPUT
NULL
–V
Precision, LowCost,
–V
S
NC
AD711
NC = NO CONNECT
S
1
2
3
4
+V
OFFSET
NULL
AD711
S
OUTPUT
V
OS
8
7
6
5
10k
+V
NC
OUTPUT
OFFSET
NULL
TRIM
S
AD711
–15V

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AD711AH Summary of contents

Page 1

... PRODUCT HIGHLIGHTS 1. The AD711 offers excellent overall performance at very competitive prices. 2. Analog Devices’ advanced processing technology and 100% testing guarantee a low input offset voltage (0.25 mV max, C grade max, J grade). Input offset voltage is specified in the warmed-up condition. Analog Devices’ laser wafer drift trimming process reduces input offset voltage drifts to 3 µ ...

Page 2

AD711–SPECIFICATIONS Parameter Min 1 INPUT OFFSET VOLTAGE Initial Offset MIN MAX vs. Temp vs. Supply 76/76/76 MIN MAX Long-Term Stability 2 INPUT BIAS CURRENT ...

Page 3

... Although the AD711 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. Model AD711AH AD711AQ and – ...

Page 4

AD711–Typical Performance Characteristics SUPPLY VOLTAGE – Volts 2.75 2.50 2.25 2.00 1. SUPPLY VOLTAGE – Volts 100 V = 15V S ...

Page 5

PHASE GAIN 100pF –20 –20 10 100 1k 10k 100k 1M 10M FREQUENCY – Hz 100 V = 15V ...

Page 6

AD711 –60 –40 – 100 120 140 TEMPERATURE – 0 AD711 OUT 0.1 F ...

Page 7

OPTIMIZING SETTLING TIME Most bipolar high-speed D/A converters have current outputs; therefore, for most applications, an external op amp is required for current-to-voltage conversion. The settling time of the converter/op amp combination depends on the settling time of the DAC ...

Page 8

AD711 OP AMP SETTLING TIME—A MATHEMATICAL MODEL The design of the AD711 gives careful attention to optimizing individual circuit components; in addition, a careful tradeoff was made: the gain bandwidth product (4 MHz) and slew rate (20 V/µs) were chosen ...

Page 9

GUARDING The low input bias current (15 pA) and low noise characteristics of the AD711 BiFET op amp make it suitable for electrometer applications such as photo diode preamplifiers and picoampere 4.99k DATA DYNAMICS 5109 V (OR IN EQUIVALENT FLAT ...

Page 10

AD711 Figures 8 and 9 show the AD711 and AD7545 (12-bit CMOS DAC) configured for unipolar binary (2-quadrant multiplication) or bipolar (4-quadrant multiplication) operation. Capacitor C1 provides phase compensation to reduce overshoot and ringing 33pF GAIN ...

Page 11

If the A/D conversion speed is not excessive and the bandwidth of the amplifier is sufficient, the amplifier’s output will return to the nominal value before the converter makes its comparison. However, many amplifiers have relatively narrow bandwidth yielding ...

Page 12

AD711 9-POLE CHEBYCHEV FILTER Figure 17 shows the AD711 and its dual counterpart, the AD712 9-pole Chebychev filter using active frequency dependent negative resistors (FDNR). With a cutoff frequency of 50 kHz and better than 90 dB rejection, ...

Page 13

Mini-DIP Package (N- PIN 1 0.25 (6.35 0.39 (9.91) MAX 0.045(1.14) 0.035(0.89) 0.175(4.44) 0.025(0.64) 0.165(4.19) 0.155(3.94) 0.21(5.33) 0.125 (3.18) 0.18(4.57) MIN 0.15(3.81) 0.100 SEATING (2.54) 0.023(0.54) PLANE TYP 0.018(0.46) 0.15 0.015(0.38) 0.033 (0.84) NOM 0.158 (4.01) ...

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AD711 Revision History Location Data Sheet changed from REV REV. B. Edits to ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . ...

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