THS4521 Datasheet, PDF (9/65 Pages) Texas Instruments – VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER

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THS4521, THS4522, THS4524
SBOS458H – DECEMBER 2008 – REVISED JUNE 2015
Electrical Characteristics: V_S+ – V_S– = 3.3 V (continued)
At V_S+ = 3.3 V, V_S– = 0 V, V_OCM = open, V_OUT = 2 V_PP (differential), R_L = 1 kΩ differential, G = 1 V/V, single-ended input,
differential output, and input and output referenced to midsupply, unless otherwise noted.
PARAMETER
TEST CONDITIONS
TEST
LEVEL ⁽¹⁾
MIN
TYP
MAX UNIT
INPUT
Common-mode input voltage low
Common-mode input voltage high
Common-mode rejection ratio (CMRR)
T_A = +25°C
T_A = –40°C to +85°C
T_A = +25°C
T_A = –40°C to +85°C
A
–0.2
–0.1
V
B
–0.1
0
V
A
1.9
2
V
B
1.8
1.9
V
A
80
100
dB
Input impedance
C
0.7 pF
kΩ∥pF
OUTPUT
Output voltage low
Output voltage high
Output current drive (for linear operation)
POWER SUPPLY
T_A = +25°C
T_A = –40°C to +85°C
T_A = +25°C
T_A = –40°C to +85°C
R_L = 50 Ω
A
0.08
0.15
V
B
0.09
0.2
V
A
3.0
3.1
V
B
2.95
3.05
V
C
±35
mA
Specified operating voltage
B
2.5
3.3
5.5
V
Quiescent operating current, per channel
Power-supply rejection ratio (±PSRR)
T_A = +25°C
T_A = –40°C to +85°C
A
0.9
1.0
1.2 mA
B
0.85
1.0
1.25 mA
A
80
100
dB
POWER DOWN
Enable voltage threshold
Assured on above 2.1 V
A
1.6
2.1
V
Disable voltage threshold
Assured off below 0.7 V
A
0.7
1.6
V
Disable pin bias current
C
1
μA
Power-down quiescent current
C
10
μA
Turn-on time delay
Turn-off time delay
V_OCM VOLTAGE CONTROL
Small-signal bandwidth
Time to V_OUT = 90% of final value, V_IN= 2 V,
R_L = 200 Ω
B
Time to V_OUT = 10% of original value, V_IN= 2
V, R_L = 200 Ω
B
C
108
ns
88
ns
23
MHz
Slew rate
C
55
V/μs
Gain
A
0.98
0.99
1.02 V/V
Common-mode offset voltage from V_OCM input
Measured at V_OUT with V_OCM input driven,
V_OCM = 1.65 V ±0.5 V
B
Input bias current
V_OCM = 1.65 V ±0.5 V
B
V_OCM voltage range
A
Input impedance
C
±2.5
±5
1 0.8 to 2.5
72∥1.5
±4 mV
±8 μA
2.3
V
kΩ∥pF
Default output common-mode voltage offset from
(V_S+– V_S–) / 2
Measured at V_OUT with V_OCM input open
A
±1.5
±5 mV
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