THS4561 Datasheet, PDF (7/35 Pages) Texas Instruments – Low-Power, High Supply Range, 70-MHz, Fully Differential Amplifier

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THS4561
SBOS874 – AUGUST 2017
Electrical Characteristics: V_S+ – V_S– = 10 V (continued)
at T_A = 25°C, V_S+ = 5.0 V, V_S– = –5.0 V, V_OCM = ground, V_O = 2 V_PP, R_F = 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
OUTPUT
V_OCRL Output voltage range low
T_A = 25°C
T_A = –40°C to 125°C
V_OCRH Output voltage range high
T_A = 25°C
T_A = –40°C to 125°C
Continuous output current
T_A = 25°C, V_o = ±3.2 V, R_L = 110 Ω,
V_OCM offset < 15 mV
T_A = –40°C to 125°C, , V_o = ±2.0 V,
R_L = 110 Ω, V_OCM offset < 15 mV
Linear output current
T_A = 25°C, V_o = ±4.7 V, R_L = 198 Ω,
A_OL > 80 dB
T_A = –40°C to 125°C, V_o = ±3.1 V,
R_L = 198 Ω, A_OL > 80 dB
OUTPUT COMMON-MODE VOLTAGE (V_OCM) CONTROL
Small-signal bandwidth from V_OCM
pin
V_OCM = 100 mV_PP
V_S– + 0.2 V_S– + 0.35
V
A
V_S– + 0.2 V_S– + 0.35
V
C
V_S+ – 0.35
V_S+ – 0.2
V
A
Vs+ - 0.35 V_S+ – 0.2
V
C
±28
±35
mA
A
±17
mA
B
±22
±27
mA
A
±15
mA
B
25
MHz
C
Large-signal bandwidth from V_OCM
pin
V_OCM = 1 V_PP
2
MHz
C
Slew rate from V_OCM pin
DC output balance
Output balance SSBW
Output balance LSBW
Gain from V_OCM pin
Input bias current
V_OCM = 0.5-V step
V_OCM fixed midsupply,
V_OD/V_OCM (V_o = ±1 V)
V_OCM fixed midsupply,
V_o/V_OCM (–3 dB from dc)
V_OCM fixed midsupply,
V_o/V_OCM with V_o = 1 V_PP (–3 dB from dc)
V_OCM = 0 V
75
0.997
–0.2
4.4
82
700
500
0.999
-.1
V/µs
C
dB
A
kHz
C
MHz
C
1.001 V/V
A
0.2 µA
A
+PSR to output Vocm
V_OCM pin driven to dc low impedance at
midsupply
72
78
dB
A
–PSR to output Vocm
V_OCM pin driven to dc low impedance at
midsupply
70
76
dB
A
Input impedance
200||1.5
kΩ || pF
C
Default V_OCM offset from
(Vs+ - Vs-) / 2
V_OCM input pin floating
–40
20
40 mV
A
Default V_OCM offset voltage drift
V_OCM common-mode offset voltage
V_OCM common-mode offset voltage
drift
T_A = –40℃ to 125℃
T_A = 25°C, V_OCM input driven to
(V_S+ – V_S–) / 2
T_A = –40°C to 125°C
120
200
300 µV/℃
B
–3.5
±1
3.5 mV
A
–15
±2
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
V
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
V
A
1.3
V
B
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