Fairchild Semiconductor RC4156M, RC4156N, RC4157N Datasheet
www.fairchildsemi.com
RC4156/RC4157
High Performance Quad Operational Amplifiers
Features
• Unity gain bandwidth for RC4156 – 3.5 MHz
• Unity gain bandwidth for RC4157 – 19 MHz
• High slew rate for RC4156 – 1.6 V/µS
• High slew rate for RC4157 – 8.0V/µS
Description
The RC4156 and RC4157 are monolithic integrated circuits,
consisting of four independent high performance operational
amplifiers constructed with an advanced epitaxial process.
These amplifiers feature improved AC performance which
far exceeds that of the 741 type amplifiers. Also featured are
• Low noise voltage – 1.4 µVRMS
• Indefinite short circuit protection
• No crossover distortion
excellent input characteristics and low noise, making this
device the optimum choice for audio, active filter and instrumentation applications. The RC4157 is a decompensated
version of the RC4156 and is AC stable in gain configurations of -5 or greater.
Block Diagram
Output (A)
–Input (A)
+Input (A)
+Input (B)
–Input (B)
Output (B)
A
+
+
B
D
+
+
C
65-3463-01
Output (D)
–Input (D)
+Input (D)
+Input (C)
–Input (C)
Output (C)
Pin Assignments
+V
1
2
3
4
S
5
6
7
Output (A)
–Input (A)
+Input (A)
+Input (B)
–Input (B)
Output (B)
14
13
12
11
10
65-3463-02
9
8
Output (D)
–Input (D)
+Input (D)
–V
S
+Input (C)
–Input (C)
Output (C)
REV. 1.0.1 6/13/01
PRODUCT SPECIFICATION RC4156/RC4157
Absolute Maximum Ratings
(beyond which the device may be damaged)
Parameter Min Typ Max Units
Supply Voltage ±20 V
Input Voltage
Differential Input Voltage 30 V
Output Short Circuit Duration
< 50°C SOIC 300 mW
P
DTA
Operating Temperature RC4156/RC4157 0 70 °C
Storage Temperature -65 150 °C
Junction Temperature SOIC, PDIP 125 °C
Lead Soldering Temperature
(60 seconds)
For T
A
Notes:
1. Functional operation under any of these conditions is NOT implied. Performance and reliability are guaranteed only if
Operating Conditions are not exceeded.
2. For supply voltages less than ±15V, the absolute maximum input voltage is equal to the supply voltage.
3. Short circuit to ground on one amplifier only.
2
3
> 50°C Derate at SOIC 5.0 mW/°C
1
±15 V
Indefinite
PDIP 468 mW
DIP 300 °C
SOIC 260 °C
PDIP 6.25 mW/°C
Operating Conditions
Parameter Min Typ Max Units
θ
JC
θ
JA
Thermal resistance 60 °C/W
Thermal resistance SOIC 200 °C/W
PDIP 160 °C/W
Electrical Characteristics
(VS = ±15V, RC = 0°C ≤ TA ≤ +70°C)
RC4156/4157
Parameters Test Conditions Min Typ Max Units
Input Offset Voltage RS ≤ 10 kΩ 6.5 mV
Input Offset Current 100 nA
Input Bias Current 400 nA
Large Signal Voltage Gain RL ≥ 2 kΩ,V
Output Voltage Swing RL ≥ 2 kΩ ±10 V
Supply Current 10 mA
Average Input Offset Voltage Drift 5.0 µV/°C
±10V 15 V/mV
OUT
2 REV. 1.0.1 6/13/01
RC4156/RC4157 PRODUCT SPECIFICATION
Electrical Characteristics
(VS = ±15V and TA = +25°C unless otherwise noted)
RC4156/4157
UnitsParameters Test Conditions Min Typ Max
Input Offset Voltage R
Input Offset Current 30 50 nA
Input Bias Current 60 300 nA
Input Resistance 0.5 MΩ
Large Signal Voltage Gain R
Output Voltage Swing R
Input Voltage Range ±12 ±14 V
Output Resistance 230 Ω
Short Circuit Current 25 mA
Common Mode Rejection Ratio RS ≤ 10 kΩ 80 dB
Power Supply Rejection Ratio RS ≤ 10 kΩ 80 dB
Supply Current (All Amplifiers) RL = ∞ 5.0 7.0 mA
Transient Response (4156)
Rise Time 60 nS
Overshoot 25 %
Slew Rate 1.3 1.6 V/µS
Unity Gain Bandwidth (4156) 2.8 3.5 MHz
Phase Margin (4156) RL = 2 kΩ, CL = 50 pF 50 %
Transient Response (4157) AV = -5
Rise Time 50 nS
Overshoot 25 %
Slew Rate 6.5 8.0 V/µS
Unity Gain Bandwidth (4157) AV = -5 15 19 MHz
Phase Margin (4157) AV = -5, RL = 2 kΩ,
Power Bandwidth V
Input Noise Voltage
1
Input Noise Current F = 20 Hz to 20 kHz 15 pA
Channel Separation 108 dB
Note:
1. Sample tested only.
≤ 10 kΩ 1.0 5.0 mV
S
≥ 2 kΩ, V
L
≥ 10 kΩ ±12 ±14 V
L
±10V 25 100 V/mV
OUT
RL ≥ 2 kΩ ±10 ±13 V
50 %
CL = 50 pF
OUT
= 20V
p-p
20 25 kHz
F = 20 Hz to 20 kHz 1.4 5.0 µV
RMS
RMS
REV. 1.0.1 6/13/01 3
PRODUCT SPECIFICATION RC4156/RC4157
Typical Performance Characteristics
140
110
100
(dB)
VOL
A
-10
90
80
70
60
50
40
30
20
10
4156
A
VOL
R = 2K
L
C = 55 pF
L
0
45
Φ
90
Φ (Deg)
135
0
10
100
1K 10K 100K
1
1M
10M
180
65-0738
F (Hz)
120
100
80
60
PSRR (dB)
40
20
0
-100
-50
-V
S
0
TA (°C)
+V
S
65-0740
+50 +100 +150-25 +25 +75 +125-75
Figure 1. Open Loop Gain, Phase vs. Frequency Figure 2. PSRR vs. Temperature
2
3
6
5
100K
4156/57
100K
4156/57
1
7
V
OUT1
C.S. = 20 log ( )
V
100 V
OUT2
V
OUT2
65-0739
OUT1
-140
-120
1K
-100
-80
-60
CS (dB)
-40
1K
1K
-20
0
10 100 1K 10K 100K
1K
F (Hz)
Figure 3. Channel Separation vs. Frequency
1.3
35
1.2
1.1
1.0
0.9
0.8
Transient Response
(Normalized to +25°C)
0.7
0.6
-100 -50
65-0741
0 +50 +100 +150-75 -25 +25 +75 +125
TA (°C)
30
25
20
15
(nV Hz )
n
e
10
5
e
n
I
N
0
10 100 1K 10K 100K
F (Hz)
Figure 4. Transient Response vs. Temperature Figure 5. Input Noise Voltage, Current
Density vs. Frequency
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
(pA Hz )
N
I
65-0742
4 REV. 1.0.1 6/13/01
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