Datasheet AD845 (Analog Devices) - 3

AD845–SPECIFICATIONS (@ 25
ⴗ
C and
ⴞ
15 V dc, unless otherwise noted.) AD845J/A AD845K/B AD845S Parameter Conditions Min Typ Max Min Typ Max Min Typ Max Unit
INPUT OFFSET VOLTAGE1 Initial Offset 0.7
1.5
0.1
0.25
0.25
1.0
mV TMIN to TMAX 2.5
0.4
2.0 mV Offset Drift 20 1.5
5.0 10
mV/∞C INPUT BIAS CURRENT2 Initial VCM = 0 V 0.75
2
0.5
1
0.75
2
nA TMIN to TMAX 45/75
18/38 500
nA INPUT OFFSET CURRENT Initial VCM = 0 V 25
300
15
100
25
300
pA TMIN to TMAX 3/6.5
1.2/2.6 20
nA INPUT CHARACTERISTICS Input Resistance 1011 1011 1011 kW Input Capacitance 4.0 4.0 4.0 pF INPUT VOLTAGE RANGE Differential ±20 ±20 ±20 V Common-Mode ⴞ
10
+10.5/–13 ⴞ
10
+10.5/–13 ⴞ
10
+10.5/–13 V Common-Mode Rejection VCM = ± 10 V
86
110
94
113
86
110 dB INPUT VOLTAGE NOISE 0.1 Hz to 10 Hz 4 4 4 mV p-p f = 10 Hz 80 80 80 nV/÷Hz f = 100 Hz 60 60 60 nV/÷Hz f = 1 kHz 25 25 25 nV/÷Hz f = 10 kHz 18 18 18 nV/÷Hz f = 100 kHz 12 12 12 nV/÷Hz INPUT CURRENT NOISE f = 1 kHz 0.1 0.1 0.1 pA/÷Hz OPEN-LOOP GAIN VO = ± 10 V RLOAD ≥ 2 kW
200
500
250
500
200
500 V/mV RLOAD ≥ 500 W
100
250
125
250
100
250 V/mV TMIN–TMAX 70
75 50
V/mV OUTPUT CHARACTERISTICS Voltage RLOAD ≥ 500 W ⴞ
12.5
ⴞ
12.5
ⴞ
12.5
V Current Short Circuit 50 50 50 mA Output Resistance Open Loop 5 5 5 W FREQUENCY RESPONSE Small Signal Unity Gain 12.8 16 13.6 16 13.6 16 MHz Full Power Bandwidth3 VO = ± 10 V RLOAD = 500 W 1.75 1.75 1.75 MHz Rise Time 20 20 20 ns Overshoot 20 20 20 % Slew Rate
80
100
94
100
94
100 V/ms Settling Time 10 V Step CLOAD = 100 pF RLOAD = 500 W to 0.01% 350 350 500 350 500 ns to 0.1% 250 250 250 ns DIFFERENTIAL GAIN f = 4.4 MHz 0.04 0.04 0.04 % DIFFERENTIAL PHASE f = 4.4 MHz 0.02 0.02 0.02 Degree POWER SUPPLY Rated Performance ±15 ±15 ±15 V Operating Range ⴞ
4.75
ⴞ
18
ⴞ
4.75
ⴞ
18
ⴞ
4.75
ⴞ
18
V Rejection Ratio VS = ± 5 to ± 15 V
88
110
95
113
88
110 dB Quiescent Current TMIN to TMAX 10 12 10
12
10
12
mA NOTES 1Input offset voltage specifications are guaranteed after five minutes of operation at T A = 25∞C. 2Bias current specifications are guaranteed maximum at either input after five minutes of operation at T A = 25∞C. 3FPBW = slew rate/2 p V peak. 4S grade TMIN–TMAX are tested with automatic test equipment at TA = –55∞C and TA = +125∞C. All min and max specifications are guaranteed. Specifications shown in
boldface
are tested on all production units at final electrical test. Results from these tests are used to calculate outgoing quality levels. Specifications subject to change without notice. –2– REV. E Document Outline FEATURES AC PERFORMANCE: DC PERFORMANCE: CONNECTION DIAGRAMS GENERAL DESCRIPTION PRODUCT HIGHLIGHTS SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS METALIZATION PHOTOGRAPH ORDERING GUIDE Typical Performance Characteristics MEASURING AD845 SETTLING TIME A HIGH SPEED INSTRUMENTATION AMP DRIVING THE ANALOG INPUT OF AN A/D CONVERTER OUTLINE DIMENSIONS Revision History