LT1994 Linear Technology, LT1994 Datasheet - Page 3

• Manufacturer Part Number: LT1994
• Description: Low Noise - Low Distortion Fully Differential Input/Output Amplifier/Driver
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
R
as (V
SYMBOL
I
R
C
e
i
e
V
(Note 7)
CMRRI
(Note 8)
CMRRIO
(Note 8)
PSRR
(Note 9)
PSRRCM
(Note 9)
G
BAL
V
ΔV
V
(Note 7)
R
V
V
n
OS
n
nVOCM
IN
ICMR
OSCM
OUTCMR
MID
OUT
IN
CM
INVOCM
I
OSCM
= R
OUT
F
/ΔT
= 499Ω, R
+
+ V
OUT
–
)/2. V
L
PARAMETER
Input Offset Current
(Note 6)
Input Resistance
Input Capacitance
Differential Input Referred Noise Voltage
Density
Input Noise Current Density
Input Referred Common Mode Output
Noise Voltage Density
Input Signal Common Mode Range
Input Common Mode Rejection Ratio
(Input Referred) ΔV
Output Common Mode Rejection Ratio
(Input Referred) ΔV
Differential Power Supply Rejection
(ΔV
Output Common Mode Power Supply
Rejection (ΔV
Common Mode Gain (∆V
Common Mode Gain Error
100 • (G
Output Balance (ΔV
Common Mode Offset Voltage
(V
Common Mode Offset Voltage Drift
Output Signal Common Mode Range
(Voltage Range for the V
Input Resistance, V
Voltage at the V
Output Voltage, High, Either Output Pin
(Note 10)
= 800Ω to a mid-supply voltage (See Figure 1) unless otherwise noted. V
OUTCM
S
ICM
/ΔV
CM
OSDIFF
– V
is defi ned as (V
– 1)
OCM
S
)
/ΔV
OCM
)
OSOCM
OCM
OUTCM
ICM
OCM
Pin
/ΔV
/ΔV
Pin
OCM
)
OUTCM
/ΔV
OSDIFF
IN
OSDIFF
+
Pin)
OUTDIFF
+ V
/ΔV
IN
OCM
–
)
)/2. V
A
)
= 25°C. V
CONDITIONS
V
V
V
V
Common Mode
Differential Mode
Differential
f = 50kHz
f = 50kHz
f = 50kHz, V
V
V
V
V
V
V
V
V
ΔV
Single-Ended Input
Differential Input
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
OUTDIFF
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
OUTDIFF
= 2.375V, V
= 3V
= 5V
= ±5V
= 3V
= ±5V
= 3V, ΔV
= 5V, ΔV
= 3V to ±5V
= 3V to ±5V
= ±2.5V
= ±2.5V
= 2.375V, V
= 3V
= 5V
= ±5V
= 2.375V, V
= 3V
= 5V
= ±5V
= 3V, ±5V
= 5V
= 3V, No Load
= 3V, R
= 3V, R
= ±5V, No Load
= ±5V, R
= ±5V, R
The
●
+
L
L
is defi ned as (V
= 3V, V
= 2V
denotes the specifi cations which apply over the full operating
L
L
ICM
OCM
= 800Ω
= 100Ω
OCM
= 800Ω
= 100Ω
ICM
ICM
ICM
= 0.75V
= 2V
Shorted to Ground
= V
= V
= V
–
= 0V, V
S
S
S
/4
/4
/4
OUT
CM
+
= V
– V
OCM
OUT
= V
–
S
). V
is defi ned (V
ICM
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
INDIFF
= mid-supply, V
V
–
MIN
2.45
–5
55
65
69
45
30
+ 1.1
is defi ned as (V
0
+
www.DataSheet4U.com
– V
–0.15
±0.2
±0.2
±0.2
±0.2
±2.5
±2.5
±2.5
±2.5
TYP
700
105
–65
–71
200
150
200
900
4.5
2.5
2.5
15
85
85
70
40
70
90
–
2
3
1
5
5
5
5
). V
⎯ S ⎯ H ⎯ D ⎯ N
OUTCM
IN
V
LT1994
= OPEN,
+
+
2400
MAX
1.75
3.75
2.55
–46
–50
±25
±25
±30
±40
140
175
400
325
450
±2
±2
±3
±4
±1
60
– 0.8
– V
is defi ned
IN
–
).
nV/√Hz
pA/√Hz
nV/√Hz
UNITS
μV/°C
μV/°C
μV/°C
μV/°C
1994fa
3
V/V
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
kΩ
kΩ
kΩ
μA
μA
μA
μA
dB
dB
dB
dB
dB
dB
pF
%
V
V
V
V