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ICL7650CSA
Datasheet
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Maxim Integrated Producs ICL7650BCD, ICL7650BCPA, ICL7650BCPD, ICL7650BCSA, ICL7650BCSD Datasheet

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General Description
Maxim’s ICL7650/ICL7653 are chopper-stabilized amplifiers, ideal for low-level signal processing applica­tions. Featuring high performance and versatility, these devices combine low input offset voltage, low input bias current, wide bandwidth, and exceptionally low drift over time and temperature. Low offset is achieved through a nulling scheme that provides continuous error correction. A nulling amplifier alternately nulls itself and the main amplifier. The result is an input offset voltage that is held to a minimum over the entire operat­ing temperature range.
The ICL7650B/ICL7653B are exact replacements for Intersil’s ICL7650B/ICL7653B. These devices have a 10µV max offset voltage, a 0.1µV/°C max input offset voltage temperature coefficient, and a 20pA max bias current—all specified over the commercial temperature range.
A 14-pin version is available that can be used with either an internal or external clock. The 14-pin version has an output voltage clamp circuit to minimize over­load recovery time.
Applications
Condition Amplifier
Precision Amplifier
Instrumentation Amplifier
Thermocouples
Thermistors
Strain Gauges
Features
♦ ICL7650/53 are Improved Second Sources to
ICL7650B/53B
♦ Lower Supply Current: 2mA
♦ Low Offset Voltage: 1µV
♦ No Offset Voltage Trimming Needed
♦ High-Gain CMRR and PSRR: 120dB min
♦ Lower Offset Drift with Time and Temperature
♦ Extended Common-Mode Voltage Range
♦ Low DC Input Bias Current: 10pA
♦ Monolithic, Low-Power CMOS Design
ICL7650/ICL7650B/ICL7653/ICL7653B
Chopper-Stabilized Op Amps
________________________________________________________________ Maxim Integrated Products 1
ICL7650 ICL7653
OUTPUT
INVERTING AMPLIFIER WITH OPTIONAL CLAMP
INPUT
C
R
C
CLAMP
Typical Operating Circuit
19-0960; Rev 2; 1/00
Pin Configurations appear at end of data sheet.
Ordering Information
PART
ICL7650CSA
ICL7650CSD
ICL7650CPA 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 SO
14 SO
8 Plastic DIP
ICL7650CPD
ICL7650CTV
ICL7650C/D 0°C to +70°C
0°C to +70°C
0°C to +70°C 14 Plastic DIP
8 TO-99
Dice
ICL7650IJA
ICL7650IJD -20°C to +85°C
-20°C to +85°C 8 CERDIP
14 CERDIP
ICL7650MTV
ICL7650MJD -55°C to +125°C
-55°C to +125°C 8 CERDIP
14 CERDIP
ICL7650BCSA
ICL7650BCSD 0°C to +70°C
0°C to +70°C 8 SO
14 SO
ICL7650BCPA
ICL7650BCPD 0°C to +70°C
0°C to +70°C 8 Plastic DIP
14 Plastic DIP
ICL7650BCTV
ICL7650BC/D 0°C to +70°C
0°C to +70°C 8 TO-99
Dice
ICL7653CSA
ICL7653CPA
ICL7653CTV
0°C to +70°C 8 SO
ICL7653BCSA
ICL7653BCPA
0°C to +70°C
0°C to +70°C 8 Plastic DIP
8 TO-99
0°C to +70°C
ICL7653IJA
ICL7653MTV -55°C to +125°C
-20°C to +85°C 8 CERDIP
8 CERDIP
0°C to +70°C 8 SO
8 Plastic DIP
ICL7653BCTV 0°C to +70°C 8 TO-99
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.
ICL7650/ICL7650B/ICL7653/ICL7653B
Chopper-Stabilized Op Amps
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—ICL7650B/ICL7653B
(Circuit of Figure 1, V+ = +5V, V- = -5V, TA= +25°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Total Supply Voltage (V+ to V-)..............................................18V
Input Voltage ........................................(V+ + 0.3V) to (V- - 0.3V)
Voltage on Oscillator Control Pins
(except EXT/CLOCK IN).............................................V+ to V-
Voltage on EXT/CLOCK IN ..................(V+ + 0.3V) to (V+ - 6.0V)
Duration of Output Short Circuit ....................................Indefinite
Current into Any Pin ............................................................10mA
Current into Any Pin while Operating (Note 1)...................100µA
Continuous Total Power Dissipation (T
A
= +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
8-Pin PDIP (derate 6.9mW/°C above +70°C)...............552mW
8-Pin CERDIP (derate 8.0mW/°C above +70°C).........640mW
8-Pin TO-99 (derate 6.7mW/°C above +70°C)............533mW
14-Pin SO (derate 8.3mW/°C above +70°C)...............667mW
14-Pin PDIP (derate 10.0mW/°C above +70°C)..........800mW
14-Pin CERDIP (derate 9.1mW/°C above +70°C).......727mW
Operating Temperature Ranges
ICL765_C_ _/ICL755_BC_ _ ...............................0°C to +70°C
ICL765_I__/ICL755_BI__ ................................-20°C to +85°C
ICL765_M__/ICL755_BM__ ..........................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
CL= 50pF, RL= 10kΩ
f = 10Hz
RS= 100Ω, f = 0 to 10Hz
V+ to V- = ±3V to ±8V
CMVR = -5V to +1.6V
RL= 100kΩ
RL= 10kΩ
RL= 10kΩ
Doubles every 10°
-20°C < TA< +85°C
TA= +25°C
-55°C < TA< +85°C
-55°C < TA< +125°C
TA= +25°C
TA= +25°C
CONDITIONS
µs0.2t
r
Rise Time
V/µs2.5SRSlew Rate
MHz2.0GBWUnity-Gain Bandwidth
pA/√Hz
0.01I
n
Input Noise Current
µVp-p2e
np-p
Input Noise Voltage
dB120 130PSRRPower-Supply Rejection Ratio
dB120 130CMRRCommon-Mode Rejection Ratio
V-5.0 -5.2 to +2.0 1.6CMVRCommon-Mode Voltage Range
±4.95
V
±4.7 ±4.85
V
OUT
Output Voltage Swing (Note 3)
V/V
1 · 1055 · 10
8
A
VOL
Large-Signal Voltage Gain
Ω
10
12
R
IN
Input Resistance
pA0.5I
OS
Input Offset Current (Note 2)
100
35
pA
1.5 10
I
BIAS
Input Bias Current
0.01 0.05
µV
±0.7 ±5
V
OS
Input Offset Voltage
±10
5.0
µV/°C
50
∆V
OS
∆T
Average Temperature Coefficient of Input Offset Voltage
UNITSMIN TYP MAXSYMBOLPARAMETER
Note 1: Maxim recommends limiting the input current to 100µA to avoid latchup problems. A value of 1mA is typically safe; however,
this is not guaranteed.
TA= +25°C
0°C < TA< +70°C
-20°C < TA< +85°C
%20Overshoot
V4.5 16V+ to V-Operating Supply Range
No load mA2.0 3.5I
SUPP
Supply Current
ICL7650/ICL7650B/ICL7653/ICL7653B
Chopper-Stabilized Op Amps
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—ICL7650/ICL7653
(Circuit of Figure 1, V+ = +5V, V- = -5V, TA= +25°C, unless otherwise noted.) (Note 5)
ELECTRICAL CHARACTERISTICS—ICL7650B/ICL7653B (continued)
(Circuit of Figure 1, V+ = +5V, V- = -5V, TA= +25°C, unless otherwise noted.)
Note 2: I
OS
= 2 · I
BIAS
Note 3: OUTPUT and CLAMP pins not connected. Note 4: See Output Clamp section for details.
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
-4.0V < V
OUT
< +4.0V pA1Clamp Off Current (Note 4)
No load
nV/
√month
100Offset Voltage vs. Time
0°C ≤ TA≤ +70°C
-20°C ≤ TA≤ +85°C
-55°C ≤ TA≤ +125°C
0°C ≤ TA≤ +70°C
RL= 100kΩ
RL= 10kΩ
-55°C ≤ TA≤ +125°C
ICL765_
TA= +25°C
ICL765_ (Note 6)
CONDITIONS
V
-5.0 -5.2 to +3.0 2.5
CMVRCommon-Mode Voltage Range
±4.95
V
±4.7 ±4.85
V
OUT
Output Voltage Swing (Note 3)
0.2 · 10
8
Ω
10
12
R
IN
Input Resistance
0.3 10
50 200
20 100
±10 ±50
µV
±0.7 ±5.0
V
OS
Input Offset Voltage
±1.0 ±10
±1.0 ±10
±1.0 ±10
UNITSMIN TYP MAXSYMBOLPARAMETER
ICL765_
ICL765_B, 0°C ≤ TA≤ +70°C
0.01 0.1
µV/°C
0.01 0.05
∆V
OS
∆T
Average Temperature Coefficient of Input Offset Voltage (Note 6)
ICL765_
ICL765_B 0°C ≤ TA≤ +70°C
-20°C ≤ TA≤ +85°C
-55°C ≤ TA≤ +125°C
0.01 0.05
0.01 0.05
0.25 1.5
TA= +25°C
410
pAI
B
Input Bias Current
12 20ICL765_B
ICL765_
RL= 10kΩ, TA= +25°C
V/V
1 · 1085 · 10
8
A
VOL
Large-Signal Voltage Gain
0°C ≤ TA≤ +70°C
0.5 · 10
8
-20°C ≤ TA≤ +85°C
0.5 · 10
8
-20°C ≤ TA≤ +85°C -5.0 -5.2 to +3.0 2.5
-55°C ≤ TA≤ +125°C -4.5 -4.0 to +3.0 2.5
0°C ≤ TA≤ +70°C
-20°C ≤ TA≤ +85°C
-55°C ≤ TA≤ +85°C +85°C ≤ TA≤ +125°C
RL= 100kΩ µA25 70 200Clamp On Current (Note 4)
Pins 12–14 open (DIP) Hz120 200 375f
ch
Internal Chopping Frequency
-30
-10
-20
1
0
3
2
4
2684 10121416
MAXIMUM OUTPUT CURRENT
vs. SUPPLY VOLTAGE
ICL7650toc01
TOTAL SUPPLY VOLTAGE (V)
MAXIMUM OUTPUT CURRENT (mA)
SOURCE CURRENT
SINK CURRENT
1k
100
10
1
0.1 25 7550 100 125 150
CLOCK RIPPLE REFERRED TO INPUT
vs. TEMPERATURE
ICL7650toc02
TEMPERATURE (°C)
CLOCK RIPPLE (µVp-p)
BROADBAND
NOISE
(A
V
= 1000)
0.1µF
1µF
0
1
2
3
48106 121416
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
ICL7650toc03
TOTAL SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
Typical Operating Characteristics
(Circuit of Figure 1, V+ = +5V, V- = -5V, TA = +25°C, unless otherwise noted.)
ICL7650/ICL7650B/ICL7653/ICL7653B
Chopper-Stabilized Op Amps
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—ICL7650/ICL7653 (continued)
(Circuit of Figure 1, V+ = +5V, V- = -5V, TA= +25°C, unless otherwise noted.) (Note 5)
CL= 50pF, RL= 10kΩ
f = 10Hz
RS= 100Ω, f = 0 to 10Hz
V+ to V- = ±3V to ±8V
CMVR = -5V to +2.5V
%
CONDITIONS
µs0.2t
r
Rise Time
V/µs2.5SRSlew Rate
MHz2.0GBWUnity-Gain Bandwidth
pA/√Hz
0.01I
n
Input Noise Current
µVp-p2e
np-p
Input Noise Voltage
dB120 130PSRRPower-Supply Rejection Ratio
dB120 130CMRRCommon-Mode Rejection Ratio
20Overshoot
V4.5 16V+ to V-Operating Supply Range
No load mA1.2 2.0I
SUPP
Supply Current
UNITSMIN TYP MAXSYMBOLPARAMETER
Pins 13 and 14 open (DIP) Hz120 200 375f
CLKOUT
Internal Chopping Frequency
RL= 100kΩ µA25 70 200Clamp On Current (Note 4)
-4.0 ≤ V
OUT
≤ +4.0V pA1Clamp Off Current (Note 4)
nV/
√month
100Offset Voltage vs. Time
Note 3: OUTPUT and CLAMP pins not connected. Note 4: See Output Clamp section for details. Note 5: All pins are designed to withstand electrostatic discharge (ESD) levels in excess of 2000V (MIL STD 8838 Method 3015.1
test circuit).
Note 6: Sample tested. Limits are not used to calculate outgoing quality level.
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