Datasheet
LTC1966
3
1966fb
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
DD
= 5V, V
SS
= –5V, V
OUTRTN
= 0V, C
AVE
= 10µF, V
IN
= 200mV
RMS
,
V
ENABLE
= 0.5V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PSRR Power Supply Rejection (Note 9)
LTC1966C, LTC1966I
LTC1966H, LTC1966MP
l
l
0.02
0.15
0.20
0.3
%V
%V
%V
V
IOS
Input Offset Voltage (Notes 6, 7, 10)
l
0.02 0.8
1.0
mV
mV
Accuracy vs Crest Factor (CF)
CF = 4 60Hz Fundamental, 200mV
RMS
(Note 11)
l
–1 2 mV
CF = 5 60Hz Fundamental, 200mV
RMS
(Note 11)
l
–20 30 mV
Input Characteristics
I
VR
Input Voltage Range (Note 14)
l
V
SS
V
DD
V
Z
IN
Input Impedance Average, Differential (Note 12)
Average, Common Mode (Note 12)
8
100
MΩ
MΩ
CMRRI Input Common Mode Rejection (Note 13)
l
7 200 µV/V
V
IMAX
Maximum Input Swing Accuracy = 1% (Note 14)
l
1 1.05 V
V
IMIN
Minimum RMS Input
l
5 mV
PSRRI Power Supply Rejection V
DD
Supply (Note 9)
V
SS
Supply (Note 9)
l
l
250
120
600
300
µV/V
µV/V
Output Characteristics
OVR Output Voltage Range
l
V
SS
V
DD
V
Z
OUT
Output Impedance V
ENABLE
= 0.5V (Note 12)
V
ENABLE
= 4.5V
l
75 85
30
95 kΩ
kΩ
CMRRO Output Common Mode Rejection (Note 13)
l
16 200 µV/V
V
OMAX
Maximum Differential Output Swing Accuracy = 2%, DC Input (Note 14)
l
1.0
0.9
1.05 V
V
PSRRO Power Supply Rejection V
DD
Supply (Note 9)
V
SS
Supply (Note 9)
l
l
250
50
1000
500
µV/V
µV/V
Frequency Response
f
1P
1% Additional Error (Note 15) C
AVE
= 10µF 6 kHz
f
10P
10% Additional Error (Note 15) C
AVE
= 10µF 20 kHz
f
–3dB
±3dB Frequency (Note 15) 800 kHz
Power Supplies
V
DD
Positive Supply Voltage
l
2.7 5.5 V
V
SS
Negative Supply Voltage (Note 16)
l
–5.5 0 V
I
DD
Positive Supply Current IN1 = 20mV, IN2 = 0V
IN1 = 200mV, IN2 = 0V
l
155
158
170 µA
µA
I
SS
Negative Supply Current IN1 = 20mV, IN2 = 0V
l
12 20 µA
Shutdown Characteristics
I
DDS
Supply Currents V
ENABLE
= 4.5V
l
0.5 10 µA
I
SSS
Supply Currents V
ENABLE
= 4.5V
LTC1966H, LTC1966MP
l
l
–1
–2
–0.1 µA
µA
I
IH
ENABLE Pin Current High V
ENABLE
= 4.5V
l
–0.3 –0.05 µA