Datasheet
LTC6602
4
6602fc
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V+
A
= V+
D
= V+
IN
= 3V, V
ICM
= V
OCM
= 1.5V, Gain = 0dB, lowpass cutoff =
300kHz, highpass cutoff = 45kHz, internal clocking with R
BIAS
= 54.9k unless otherwise noted.
PARAMETER CONDITIONS MIN TYP MAX UNITS
PGA Gain Lowpass Cutoff = 150kHz, Highpass Filter Bypassed,
Measured at DC, 0.6V to 2.4V Each Output
Gain Setting = 0dB
Gain Setting = 12dB
Gain Setting = 24dB
Gain Setting = 30dB
l
l
l
l
0.4
11.6
23.5
29.1
0.8
12
23.8
29.6
1.2
12.4
24.1
30.1
dB
dB
dB
dB
PGA Gain Matching Lowpass Cutoff = 150kHz, Highpass Filter Bypassed,
Measured at DC, 0.6V to 2.4V Each Output
Gain Setting = 0dB
Gain Setting = 12dB
Gain Setting = 24dB
Gain Setting = 30dB
l
l
l
l
±0.2
±0.2
±0.3
±0.3
dB
dB
dB
dB
Noise At 200kHz Voltage Noise Referred to the Input
Gain = 0dB
Gain = 12dB
Gain = 24dB
Gain = 30dB
–119
–131
–142
–146
dBm/Hz
dBm/Hz
dBm/Hz
dBm/Hz
Integrated Noise Noise Bandwidth = 1.57MHz (Note 5), Referred to the Input
Gain = 0dB
Gain = 12dB
Gain = 24dB
Gain = 30dB
–62
–74
–85
–89
dBm
dBm
dBm
dBm
THD V
IN
= 1.5V
P-P
, f
IN
= 100kHz –75 dB
Input Impedance Differential
Common Mode
16
20
kΩ
kΩ
V
OS
Differential Differential Offset Voltage at Either Output
Differential Offset Voltage at Either Output HPF Bypassed, Lowest LPF Cutoff
Differential Offset Voltage at Either Output HPF Bypassed, Highest LPF Cutoff
l
l
l
±7
±10
±10
±15
±30
±30
mV
mV
mV
V
OSCM
Common Mode Offset Voltage
V
OCM
= 1.5V, Supplies = 3V
V
OSCM
= V
OUT-CM
– V
OCM
l
–40
±20
70
mV
CMR Differential
ΔV
INCM
/ΔV
OUTDIFF
Common Mode Input from 0 to 3V
V+
IN
= 3V
Common Mode Input from 0 to 5V
V+
IN
= 5V
l
l
75
75
95
95
dB
dB
V
OCM
Pin Voltage V+
A
= V+
D
= 3V, Pin 3 Open
l
1.2 1.4 1.6 V
V
OCM
Pin Input
Impedance
V+
A
= V+
D
= 3V, Pin 3 Open
l
300 400 700 Ω
Output Swing Lowpass Cutoff = 150kHz, Highpass Filter Bypassed, Measured at DC
Source 1mA, V
OUT
High, Relative to V+
A
Sink 1mA, V
OUT
Low, Relative to GND
l
l
200
200
500
500
mV
mV
Short-Circuit Current Lowpass Cutoff = 150kHz, Highpass Filter Bypassed
Sourcing
Sinking
l
l
4
10
15
25
25
50
mA
mA
Supply Current Internal Clock (R
BIAS
= 54.9k); Sum of the Currents into V+
D
, V+
A
, and
V+
IN
All Supplies Set to 3V
HPF = 15k, LPF = 150k
HPF = 45k, LPF = 300k
HPF = 90k, LPF = 900k
l
l
l
65
100
105
88
133
138
mA
mA
mA