THS4561 Datasheet, PDF (9/35 Pages) Texas Instruments – Low-Power, High Supply Range, 70-MHz, Fully Differential Amplifier

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THS4561
SBOS874 – AUGUST 2017
7.6 Electrical Characteristics: V_S+ – V_S– = 5 V
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
AC PERFORMANCE
SSBW Small-signal bandwidth
GBP
LSBW
Gain-bandwidth product
Large-signal bandwidth
V_o = 100 mV_PP, 1-dB peaking
V_o = 100 mV_PP, G = 2 V/V
V_o = 100 mV_PP, G = 5 V/V
V_o = 100 mV_PP, G = 10 V/V
V_o = 100 mV_PP, G = 10 V/V
65
MHz
C
35
MHz
C
12
MHz
C
6
MHz
C
60
MHz
C
25
MHz
C
Rise and fall time
5
MHz
C
SR
HD2
HD3
e_n
e_i
Slew rate
Over- and undershoot
Rise and fall time
Settling time
Second-order harmonic
distortion
Third-order harmonic distortion
Input differential voltage noise
Input current noise, each input
Overdrive recovery time
Derived from V_o = 2 V_PP large signal bandwidth
V_o = 1-V step, input t_r = 10 ns
V_o = 1-V step, input t_r = 10 ns
to 0.1% of final value, V_o = 1-V step,
input t_r = 10 ns
to 0.01% of final value, V_o = 1-V step,
input t_r = 10 ns
f = 100 kHz
f = 100 kHz, V_o = 8 V_PP
f = 100 kHz
f = 100 kHz, V_o = 8 V_PP
f = 100 kHz
f = 100 kHz
G = 2 V/V, 2x output overdrive, dc-coupled
110
7%
11
30
80
–110
–100
–115
–95
5
0.4
300
V/µs
C
C
ns
C
ns
C
ns
C
dBc
C
dBc
C
dBc
C
dBc
C
nV/√Hz
C
pA/√Hz
C
ns
C
z_O
Closed-loop output impedance f = 100 kHz (differential)
DC PERFORMANCE
0.07
Ω
C
A_OL
Open-loop voltage gain
Internal feedback trace
resistance
RGT only (between pins 1,11 and 4,10)
104
115
8.3
8.5
dB
A
8.7
Ω
A
Internal feedback trace
resistance mismatch
RGT only (between pins 1,11 and 4,10)
–1.0
1.0
Ω
A
Input-referred offset voltage
Input offset voltage drift
Input bias current (positive
current out of node)
T_A = 25°C
T_A = –40°C to 125°C
T_A = 25°C
–200
±50
–2
±0.3
0.25
0.4
200 µV
A
2 µV/°C
B
0.6 µA
A
INPUT
Input bias current drift
Input offset current
Input offset current drift
T_A = –40°C to 125°C
T_A = 25°C
T_A = –40°C to 125°C
-5
8 nA/°C
B
–20
±2
20 nA
A
–120
±50
120 pA/°C
B
CMRR
Common-mode input low
Common-mode input high
Common-mode rejection ratio
Input impedance differential
mode
T_A = 25°C
T_A = –40°C to 125°C
T_A = 25°C
T_A = –40°C to 125°C
Inputs at (V_S+ – V_S–) / 2
Inputs at (V_S+ – V_S–) / 2
V_S+ – 1.2
V_S+ – 1.35
95
V_S– – 0.2
V_S– – 0.1
V_S+ – 1.1
V_S+ – 1.2
110
150||2.4
V_S–
V
A
V_S–
V
B
V
A
V
B
dBc
A
kΩ || pF
C
OUTPUT
V_OCRL
Output voltage range low
V_OCRH Output voltage range high
T_A = 25°C
T_A = –40°C to 125°C
T_A = 25°C
T_A = –40°C to 125°C
V_S– + 0.2 V_S– + 0.25
V
A
V_S– + 0.2 V_S– + 0.35
V
C
V_S+ – 0.25
V_S+ – 0.2
V
A
V_S+ – 0.35
V_S+ – 0.2
V
C
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