THS4551 Datasheet, PDF (10/70 Pages) Texas Instruments – Low-Noise, Precision, 150-MHz, Fully Differential Amplifier

THS4551
SBOS778A – APRIL 2016 – REVISED AUGUST 2016
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Electrical Characteristics: (V_S+) – (V_S–) = 3 V (continued)
at T_A ≈ 25°C, VOCM pin = open, R_F = 1 kΩ, R_L = 1 kΩ, V_OUT = 2 V_PP, 50-Ω input match, G = 1 V/V, PD = V_S+, single-ended
input, differential output, and input and output referenced to default midsupply for ac-coupled tests (unless otherwise noted);
see Figure 61 for a gain of 1-V/V test circuit
PARAMETER
TEST CONDITIONS
OUTPUT COMMON-MODE VOLTAGE (V_OCM) CONTROL⁽⁶⁾ (See Figure 65)
SSBW Small-signal bandwidth
V_OCM = 100 mV_PP at the control pin
LSBW Large-signal bandwidth
SR
Slew rate⁽²⁾
V_OCM = 1 V_PP at the control pin
From 1-V_PP LSBW
Output common-mode noise
VOCM pin driven from low impedance, f ≥ 2 kHz
MIN
TYP
MAX UNIT
TEST
LEVEL ⁽¹⁾
40
MHz
C
8
MHz
C
12
V/µs
C
15
nV/√Hz
Gain
VOCM control pin input to output average voltage
(see Figure 65)
0.997
0.999
1.001 V/V
A
DC output balance (differential
mode to common-mode output)
V_OUT = ±1 V
85
dB
C
Output balance
SSBW
LSBW
V_OUT = 100 mV_PP (output balance drops –3 dB from
the 85-dB dc level)
V_OUT = 1 V_PP (output balance drops –3 dB from the
85-dB dc level)
300
C
kHz
300
C
Input bias current
–100
±10
100 nA
A
Input impedance
47 || 1.3
kΩ || pF
C
Default voltage offset from
[(V_S+) – (V_S–)] / 2
CM
V_OS
Common-mode offset voltage
Common-mode offset voltage
drift ⁽⁴⁾
VOCM pin open
V_OCM input driven to
[(V_S+) – (V_S–)] / 2
T_A = 25°C
T_A = 0°C to +70°C
T_A = –40°C to +85°C
T_A = –40°C to +125°C
V_OCM input driven to [(V_S+) – (V_S–)] / 2
–12
–5.0
–5.25
–5.7
–5.7
–10
±2
12 mV
A
±1
5.0
A
5.5
B
mV
5.6
B
6.0
B
±2
10 µV/°C
B
Common-mode loop supply
headroom to negative supply
< ±4-mV shift from
midsupply CM V_OS
Common-mode loop supply
headroom to positive supply
< ±4-mV shift from
midsupply CM V_OS
T_A = 25°C
T_A = 0°C to +70°C
T_A = –40°C to +85°C
T_A = –40°C to +125°C
T_A = 25°C
T_A = 0°C to +70°C
T_A = –40°C to +85°C
T_A = –40°C to +125°C
0.55
A
0.6
B
V
0.65
B
0.7
B
1.5
A
1.6
B
V
1.65
B
1.7
B
(6) Specifications are from input VOCM pin to differential output average voltage.
10
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