THS4531A_15 Datasheet, PDF (8/59 Pages) Texas Instruments – THS4531A Ultra Low-Power, Rail-to-Rail Output, Fully Differential Amplifier

THS4531A
SLOS823B – DECEMBER 2012 – REVISED JUNE 2015
www.ti.com
Electrical Characteristics: V_S = 2.7 V (continued)
Test conditions at T_A ≈ 25°C, V_S+ = 2.7 V, V_S– = 0 V, V_OCM = open, V_OUT = 2 V_PP, R_F = 2 kΩ, R_L = 2 kΩ differential, G = 1 V/V,
single-ended input, differential output, and output referenced to mid-supply, unless otherwise noted.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
TEST
LEVEL
Turnoff time delay
Time from PD = low to V_OUT = 10% of original
value, R_L= 200 Ω
OUTPUT COMMON-MODE VOLTAGE CONTROL (V_OCM)
Small-signal bandwidth
V_OCM input = 100 mV_PP
Slew rate
V_OCM input = 1 V_STEP
Gain
20
ns
C
23
MHz
C
14
V/µs
C
0.99
0.996
1.01 V/V
A
Common-mode offset voltage
Offset = output common-mode voltage – V_OCM
input voltage
–5
±1
5 mV
A
V_OCM input bias current
V_OCM input voltage range
V_OCM = (V_S+ + V_S–)/2
–100
±20
100 nA
A
0.8
0.75 to
1.9
1.75 V
A
V_OCM input impedance
Default voltage offset from
(V_S+ + V_S–)/2
Offset = output common-mode voltage – (V_S+
+ V_S–)/2 with V_OCM input floating
100 || 1.6
–10
±3
kΩ || pF
C
10 mV
A
7.6 Electrical Characteristics: V_S = 5 V
Test conditions at T_A ≈ 25°C, V_S+ = 5 V, V_S– = 0 V, V_OCM = open, V_OUT = 2 V_PP, R_F = 2 kΩ, R_L = 2 kΩ differential, G = 1 V/V,
single-ended input, differential output, and output referenced to mid-supply, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX UNIT
TEST
LEVEL
AC PERFORMANCE
Small-signal bandwidth
Gain-bandwidth product
Large-signal bandwidth
Bandwidth for 0.1-dB flatness
Slew rate, rise/fall, 25% to 75%
Rise/fall time, 10% to 90%
Settling time to 1%
Settling time to 0.1%
Settling time to 0.01%
Overshoot/undershoot
2nd-order harmonic distortion
V_OUT = 100 mV_PP, G = 1
V_OUT = 100 mV_PP, G = 2
V_OUT = 100 mV_PP, G = 5
V_OUT = 100 mV_PP, G = 10
V_OUT = 100 mV_PP, G = 10
V_OUT = 2 V_PP, G = 1
V_OUT = 2 V_PP, G = 1
V_OUT = 2 V_Step
V_OUT = 2 V_Step
V_OUT = 2 V_Step
V_OUT = 2 V_Step
V_OUT = 2 V_Step
V_OUT = 2 V_Step
f = 1 kHz, V_OUT = 2 V_PP
f = 10 kHz
36
17
6
2.7
27
36
15
220/390
5
25
60
150
1%
–129
–128
MHz
C
MHz
C
MHz
C
MHz
C
V/µs
C
ns
C
ns
C
ns
C
ns
C
C
dBc
C
f = 1 MHz
–60
3rd-order harmonic distortion
f = 1 kHz, V_OUT = 2 V_PP
f = 10 kHz
–138
–137
dBc
C
f = 1 MHz
–71
2nd-order intermodulation distortion
3rd-order intermodulation distortion
Input voltage noise
f = 1 MHz, 200-kHz tone spacing,
V_OUT = 1 Vpp each tone
f = 1 MHz, 200-kHz tone spacing,
V_OUT = 1 Vpp each tone
f = 1 kHz
–85
dBc
C
–83
dBc
C
10
nV/√Hz
C
Voltage noise 1/f corner frequency
45
Hz
C
8
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