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MIC7122YMM

P1-P3P4-P6P7-P8
June 2005 1 MIC7122
MIC7122 MicrelMIC7122 Micrel
MIC7122
Rail-to-Rail Dual Op Amp
General Description
The MIC7122 is a dual high-performance CMOS operational
amplifier featuring rail-to-rail inputs and outputs.
The input common-mode range extends beyond the rails by
300mV, and the output voltage swings to within 150µV of
both rails when driving a 100kΩ load.
The amplifiers operate from 2.2V to 15V and are fully
specified at 2.2V, 5V, and 15V. Gain bandwidth and slew
rate are 750kHz and 0.7V/µs, respectively at 2.2V supply.
The MIC7122 is available in the MM8™ 8-lead MSOP
package.
Features
• Small footprint MSOP-8 package
• 350µA supply current per op amp at 2.2V supply
• Guaranteed 2.2V, 5V, and 15V performance
• 750kHz gain-bandwidth product at 2.2V supply
• 0.01% total harmonic distortion at 1kHz (15V, 2kΩ)
• Drives 200pF at 5V and greater supply voltages
Applications
• Battery-powered instrumentation
• PCMCIA, USB peripherals
• Portable computers and PDAs
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
MM8 is a trademark of Micrel, Inc.
Pin Description
Pin Number Pin Name Pin Function
1 / 7 OUTA / OUTB Amplifier Outputs
2 / 6 INA– / INB– Inverting Inputs
3 / 5 INA+ / INB+ Noninverting Inputs
4 V– Negative Supply: Negative supply for split supply application or ground for
single supply applications.
8 V+ Positive Supply
Pin Configuration
1
2
3
4
8
7
6
5
V+
OUT B
INB–
INB+
OUT A
IN A–
IN A+
V–
MSOP-8 (MM)
1
2
3
4
8
7
6
5
A
B
Ordering Information
Part Number
Standard Pb-free Temperature Range Package
MIC7122BMM MIC7122YMM –40°C to +85°C MSOP-8
MIC7122 Micrel
MIC7122 2 June 2005
Absolute Maximum Ratings (Note 1)
Supply Voltage (V
V+
– V
V–
)........................................16.5V
Differential Input Voltage (V
IN+
– V
IN–
) .......................±10V
I/O Pin Voltage (V
IN
, V
OUT
), Note 3
.............................................V
V+
+ 0.3V to V
V–
– 0.3V
Junction Temperature (T
J
) ...................................... +150°C
Storage Temperature ............................... –65°C to +150°C
Lead Temperature (soldering, 10 sec.) ..................... 260°C
ESD, Note 6..............................................................1000V
Operating Ratings (Note 2)
Supply Voltage (V
V+
– V
V–
).............................. 2.2V to 15V
Junction Temperature (T
J
) ......................... –40°C to +85°C
Max. Power Dissipation............................................ Note 4
Package Thermal Resistance, Note 5
MSOP-8 (θ
JA
) ....................................................200°C/W
DC Electrical Characteristics (2.2V)
V
V+
= +2.2V, V
V–
= 0V, V
CM
= V
OUT
= V
V+
/2; R
L
= 1MΩ; T
J
= 25°C, bold values indicate –40°C ≤ T
J
≤ +85°C
; Note 7
; unless noted
Symbol Parameter Condition Min Typ Max Units
V
OS
Input Offset Voltage 0.5 9 mV
TCV
OS
Input Offset Voltage Average Drift 3.0 µV/°C
I
B
Input Bias Current 1.0 10 pA
64 500 pA
I
OS
Input Offset Current 0.5 5 pA
32 250 pA
R
IN
Input Resistance >1 TΩ
CMRR Common-Mode Rejection Ratio -0.3V ≤ V
CM
≤ 2.5V, Note 9 45 65 dB
±PSRR Power Supply Rejection Ratio V
V+
= V
V–
= 1.1V to 2.5V, V
OUT
= V
CM
= 0 60 85 dB
C
IN
Common-Mode Input Capacitance 3 pF
V
O
Output Swing output high, R
L
= 100k, 0.15 1 mV
specified as V
V+
– V
OUT
1 mV
output low, R
L
= 100k 0.15 1 mV
1 mV
output high, R
L
= 2k 8 33 mV
specified as V
V+
– V
OUT
50 mV
output low, R
L
= 2k 8 33 mV
50 mV
output high, R
L
= 600Ω 26 110 mV
specified as V
V+
– V
OUT
165 mV
output low, R
L
= 600Ω 26 110 mV
165 mV
I
SC
Output Short Circuit Current sinking or sourcing, Note 8 20 50 mA
I
S
Supply Current both amplifiers 0.7 1.6 mA
AC Electrical Characteristics (2.2V)
V
V+
= 2.2V, V
V–
= 0V, V
CM
= V
OUT
= V
V+
/2; R
L
= 1MΩ; T
J
= 25°C, bold values indicate –40°C ≤ T
J
≤ +85°C
; Note 7
; unless noted
Symbol Parameter Condition Min Typ Max Units
SR Slew Rate 0.7 V/µs
GBW Gain-Bandwidth Product 750 kHz
φ
m
Phase Margin C
L
= 0pF 80 °
C
L
= 200pF 40 °
G
m
Gain Margin 10 dB
Interamplifier Isolation Note 12 90 dB
June 2005 3 MIC7122
MIC7122 Micrel
DC Electrical Characteristics (5V)
V
V+
= +5.0V, V
V–
= 0V, V
CM
= 1.5V, V
OUT
= V
V+
/2; R
L
= 1MΩ; T
J
= 25°C, bold values indicate –40°C ≤ T
J
≤ +85°C; Note 7; unless noted
Symbol Parameter Condition Min Typ Max Units
V
OS
Input Offset Voltage 0.5 9 mV
TCV
OS
Input Offset Voltage Average Drift 3.0 µV/°C
I
B
Input Bias Current 1.0 10 pA
64 500 pA
I
OS
Input Offset Current 0.5 5 pA
32 250 pA
R
IN
Input Resistance >1 TΩ
CMRR Common-Mode Rejection Ratio -0.3V ≤ V
CM
≤ 5.3V, Note 9 55 75 dB
±PSRR Power Supply Rejection Ratio V
V+
= V
V–
= 2.5V to 7.5V, V
OUT
= V
CM
= 0 55 100 dB
C
IN
Common-Mode Input Capacitance 3 pF
V
OUT
Output Swing output high, R
L
= 100k 0.3 1.0 mV
specified as V
V+
– V
OUT
1.5 mV
output low, R
L
= 100k 0.3 1.0 mV
1.5 mV
output high, R
L
= 2k 13 50 mV
specified as V
V+
– V
OUT
75 mV
output low, R
L
= 2k 13 50 mV
75 mV
output high, R
L
= 600Ω 40 165 mV
specified as V
V+
– V
OUT
250 mV
output low, R
L
= 600Ω 40 165 mV
250 mV
I
SC
Output Short Circuit Current sinking or sourcing, Note 8 40 140 mA
I
S
Supply Current both amplifiers 0.8 1.8 mA
AC Electrical Characteristics (5V)
V
V+
= 5V, V
V–
= 0V, V
CM
= 1.5V, V
OUT
= V
V+
/2; R
L
= 1MΩ; T
J
= 25°C, bold values indicate –40°C ≤ T
J
≤ +85°C
; Note 7
; unless noted
Symbol Parameter Condition Min Typ Max Units
THD Total Harmonic Distortion f = 1kHz, A
V
= –2, 0.05 %
R
L
= 2kΩ, V
OUT
= 4.0 V
PP
SR Slew Rate 0.6 V/µs
GBW Gain-Bandwidth Product 465 kHz
φ
m
Phase Margin C
L
= 0pF 85 °
C
L
= 200pF 40 °
G
m
Gain Margin 10 dB
Interamplifier Isolation Note 12 90 dB
P1-P3P4-P6P7-P8

MIC7122YMM

Mfr. #:
Buy MIC7122YMM
Manufacturer:
Microchip Technology / Micrel
Description:
Operational Amplifiers - Op Amps Dual CMOS Op Amp
Lifecycle:
New from this manufacturer.
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