MIC7122
Micrel
MIC7122
4
June 2005
DC Electrical Characteristics (15V)
V
V+ = +15V, VV– = 0V, VCM = 1.5V, VOUT = VV+/2; RL = 1M; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +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
V/°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
T
CMRR
Common-Mode Rejection Ratio
-0.3V
≤ V
CM ≤ 15.3V, Note 9
60
85
dB
±PSRR
Power Supply Rejection Ratio
V
V+ = VV– = 2.5V to 7.5V, VOUT = VCM = 0
55
100
dB
A
V
Large Signal Voltage Gain
sourcing or sinking,
340
V/mV
R
L = 2k, Note 10
sourcing or sinking,
300
V/mV
R
L = 600, Note 10
C
IN
Common-Mode Input Capacitance
3
pF
V
OUT
Output Swing
output high, R
L = 100k
0.8
2
mV
specified as V
V+ – VOUT
3
mV
output low, R
L = 100k
0.8
2
mV
3
mV
output high, R
L = 2k
40
80
mV
specified as V
V+ – VOUT
120
mV
output low, R
L = 2k
40
80
mV
120
mV
output high, R
L = 600
130
270
mV
specified as V
V+ – VOUT
400
mV
output low, R
L = 600
130
270
mV
400
mV
I
SC
Output Short Circuit Current
sinking or sourcing, Notes 8
50
250
mA
I
S
Supply Current
both amplifiers
0.9
2.0
mA
AC Electrical Characteristics (15V)
V
V+ = 15V, VV– = 0V, VCM = 1.5V, VOUT = VV+/2; RL = 1M; TJ = 25°C, bold values indicate –40°C ≤ TJ ≤ +85°C; Note 7; unless noted
Symbol
Parameter
Condition
Min
Typ
Max
Units
THD
Total Harmonic Distortion
f = 1kHz, A
V = –2,
0.01
%
R
L = 2k, VOUT = 8.5 VPP
SR
Slew Rate
V+ = 15V, Note 11
0.5
V/
s
GBW
Gain-Bandwidth Product
420
kHz
φ
m
Phase Margin
C
L = 0pF
85
°
C
L = 500pF
40
°
G
m
Gain Margin
10
dB
e
n
Input-Referred Voltage Noise
f = 1kHz, V
CM = 1V
37
nV/ Hz
i
n
Input-Referred Current Noise
f = 1kHz
1.5
fA/ Hz
Interamplifier Isolation
Note 12
90
dB