THS4561 Datasheet, PDF (10/35 Pages) Texas Instruments – Low-Power, High Supply Range, 70-MHz, Fully Differential Amplifier

THS4561
SBOS874 – AUGUST 2017
www.ti.com
Electrical Characteristics: V_S+ – V_S– = 5 V (continued)
at T_A = 25℃, V_S+ = 5.0 V, V_S– = 0 V, V_OCM = Open, V_O = 2 V_PP, R_F and R_G = 1.5 kΩ, R_L = 1 kΩ, 50–Ω Input Match, Differential,
G = 1 V/V, single-ended input, differential output, and input and output referenced to default midsupply for ac-coupled tests
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
TEST
LEVEL
Continuous output current
T_A = 25°C, ±1.45 V, R_L = 50 Ω,
V_OCM offset < ±15 mV
T_A = –40°C to 125°C, ±0.85 V,
R_L = 50 Ω, V_OCM offset < ±15 mV
Linear output current
T_A = 25°C, ±2.7 V, R_L = 124 Ω, A_OL > 80 dB
T_A = –40°C to 125°C, ±1.8 V,
R_L = 124 Ω, A_OL > 75 dB
OUTPUT COMMON-MODE VOLTAGE (V_OCM) CONTROL
Small-signal bandwidth from
V_OCM pin
V_OCM = 100 mV_PP
Large-signal bandwidth from
V_OCM pin
V_OCM = 1 V_PP
Slew rate from V_OCM pin
V_OCM = 0.5-V step
DC output balance
V_OCM fixed midsupply, V_o/V_OCM (V_o = ±1 V)
Output balance SSBW
V_OCM fixed midsupply,
V_o/V_OCM (–3 dB from dc)
Output balance LSBW
V_OCM fixed midsupply,
V_o/V_OCM with V_o = 8 V_PP (–3 dB from dc)
Gain from V_OCM pin
V_OCM = 0 V
Input bias current
V_OCM pin
+PSR to output common mode V_OCM driven to dc at midsupply
-PSR to output common mode V_OCM driven to dc at midsupply
Input impedance
V_OCM pin
Default V_OCM offset from
(V_S+ - V_S–) / 2
V_OCM input pin floating
Default V_OCM offset voltage drift T_A = –40°C to 125°C
V_OCM common-mode offset
voltage
T_A = 25°C, V_OCM input driven to (V_S+ – V_S–) / 2
T_A = –40°C to 125°C
V_{OCM c}ommon-mode offset
voltage drift
T_A = –40°C to 125°C
±27
±35
±16
±20
±24
±14
mA
A
mA
B
mA
A
mA
B
75
0.997
–0.2
72
70
–40
120
–3.5
–15
20
2
4.4
82
600
500
0.999
-0.1
78
76
200||1.5
±10
200
±1
TBD
±2
MHz
C
MHz
C
V/µs
C
dB
A
kHz
C
kHz
C
1.001 V/V
A
0.2 µA
A
dB
A
dB
A
kΩ || pF
C
40 mV
A
300 µV/℃
B
3.5 mV
A
mV
B
15 µV/°C
B
V_OCM headroom to negative
supply voltage
T_A = 25°C, < ±4-mV shift from midsupply offset
T_A = –40°C to 125°C,
< ±4-mV shift from midsupply offset
0.45
0.5
A
0.6
V
B
V_OCM headroom to positive
supply voltage
T_A = 25°C,
< ±4-mV shift from midsupply offset
T_A = –40°C to 125°C,
< ±4-mV shift from midsupply offset
1.1
1.2
A
1.3
V
B
POWER SUPPLY
Specified operating voltage
2.85
5
12.6
V
A
I_Q
Quiescent operating current
T_A = 25°C, 5-V total supply
T_A = –40°C to 125°C, 5-V total supply
Supply current temperature
coefficient
T_A = –40°C to 125°C
760
TBD
820
880 µA
A
TBD µA
B
0.5
1.3 µA/℃
B
PSRR Power-supply rejection ratio
Either supply to differential output
92
110
dB
A
POWER DOWN
V_T
Enable voltage threshold
Specified on within 0.5 V of V_S+
Disable voltage threshold
Specified off below V_S+ – 1.5 V
Disable pin bias current
PD is 0.5 V below V_S+
Power-down quiescent current
4.5
5
V
A
0
3.5
V
A
-2.5
0
2.5 µA
A
3
15
28 µA
A
Turn-on time delay
Turn-off time delay
Time to V_O = 90% of final value
Time to V_O = 10% of original value
1
µs
C
5
µs
C
10
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