OP77FJZ Analog Devices Inc, OP77FJZ Datasheet - Page 10

• Manufacturer Part Number: OP77FJZ
• Description: IC OPAMP GP 600KHZ PREC TO99-8
• Manufacturer: Analog Devices Inc

Specifications of OP77FJZ

• Slew Rate: 0.3 V/µs
• Amplifier Type: General Purpose
• Number Of Circuits: 1
• Gain Bandwidth Product: 600kHz
• Current - Input Bias: 1.2nA
• Voltage - Input Offset: 20µV
• Voltage - Supply, Single/dual (±): ±3 V ~ 18 V
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: TO-99-8, Metal Can
• Op Amp Type: Low Offset Voltage
• No. Of Amplifiers: 1
• Bandwidth: 600kHz
• Supply Voltage Range: ± 3V To ± 18V
• Amplifier Case Style: TO-99
• No. Of Pins: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Output Type: -
• Current - Output / Channel: -
• -3db Bandwidth: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

OP77
TEST CIRCUITS
100Ω
100Ω
Figure 22. Typical Low-Frequency Noise Test Circuit
INPUT
Figure 21. Typical Offset Voltage Test Circuit
NOTES
*
1 PER BOARD
Figure 23. Optional Offset Nulling Circuit
+
–
INPUT REFERRED NOISE =
10kΩ
2
3
50Ω
OP77
2.5MΩ
Figure 24. Burn-In Circuit
*
*
10kΩ
V+
V–
4
7
+
+
2
3
10µF
10µF
2
3
OP77
6
1
OP77
OP77
100kΩ
V–
+18V
–18V
200kΩ
3.3kΩ
8
4
20kΩ
7
4
10Ω
10Ω
0.1µF
7 6
V
6
OS
25,000
4.7µF
(≈10Hz FILTER)
V
=
O
0.1µF
4000
V
O
V+
OUTPUT
V
O
OUTPUT
Rev. E | Page 10 of 16
Actual open-loop voltage gain can vary greatly at various output
voltages. All automated testers use endpoint testing and therefore
only show the average gain. This causes errors in high closed-
loop gain circuits. Because this is difficult for manufacturers to
test, users should make their own evaluations. This simple test
circuit makes it easy. An ideal op amp would show a horizontal
scope trace.
This is the output gain linearity trace for the new OP77. The
output trace is virtually horizontal at all points, assuring
extremely high gain accuracy. The average open-loop gain is
truly impressive—approximately 10,000,000.
NOTES
1. GAIN NOT CONSISTANT. CAUSES NONLINEAR ERRORS.
2. A
3. CHECK SPECIFICATION TABLE 1 AND TABLE 2 FOR PERFORMANCE.
V
VO
IN
10kΩ
= ±10V
SPEC IS ONLY PART OF THE SOLUTION.
–10V
1MΩ
10Ω
Figure 26. Output Gain Linearity Trace
Figure 25. Open-Loop Gain Linearity
100kΩ
R
0V
V
L
Y
V
X
–10V
TYPICAL PRECISION
A
R
VO
L
= 2kΩ
+10V
OP AMP
650V/mV
0V
V
Y
+10V
V
X
V
X