Datasheet

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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
THS4120
THS4121
SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004
MIN TYP MAX UNIT
Split supply ± 1.5 ± 1.65 ± 1.75
V
DD
Supply voltage V
Single supply 3 3.3 3.5
C suffix 0 70
T
A
Operating free-air temperature ° C
I suffix –40 85
V
DD
= 3.3 V, R
L
= 800 Ω , T
A
= 25 ° C (unless otherwise noted)
(1)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC PERFORMANCE
BW Small-signal bandwidth (–3 dB) V
DD
= 3.3 V, Gain = 1, R
f
= 200 Ω 100 MHz
SR Slew rate
(2)
V
DD
= 3.3 V, Gain = 1 55 V/ µ s
Settling time to 0.1% 60
t
s
Differential step voltage = 2 V
PP
, Gain = 1 ns
Settling time to 0.01% 292
DISTORTION PERFORMANCE
Total harmonic distortion
THD Differential input, differential output V
DD
= 3.3 V, f = 1 MHz –75 dB
Gain = 1, R
f
= 200 Ω , R
L
= 800 Ω , V
O
= 2 V
PP
Total harmonic distortion
THD Differential input, differential output V
DD
= 3.3 V, f = 1 MHz –66 dB
Gain = 1, R
f
= 200 Ω , R
L
= 800 Ω , V
O
= 4 V
PP
Spurious free dynamic range (SFDR)
R
f
= 200 Ω , f = 1 MHz –69 dB
Differential input, differential output, V
O
= 4 V
PP
Third intermodulation distortion V
I
= 0.071 V
RMS
Gain = 1, f = 10 MHz –75 dBc
NOISE PERFORMANCE
V
n
Input voltage noise f = 10 kHz 5.4 nV/ √ Hz
I
n
Input current noise f = 10 kHz 1 fA/ √ Hz
DC PERFORMANCE
T
A
= 25 ° C 60 66
Open-loop gain dB
T
A
= full range 66
T
A
= 25 ° C 3 8
Input offset voltage
T
A
= full range 4 9
mV
V
S
T
A
= 25 ° C 5 13
Input offset voltage, referred to V
OCM
T
A
= full range 14
Offset voltage drift T
A
= full range 25 µ V/ ° C
I
IB
Input bias current 1.2 pA
T
A
= full range
I
OS
Input offset current 100 fA
Current offset drift T
A
= full range 5 fA/ ° C
(1) The full range temperature is 0 ° C to 70 ° C for the C suffix, and –40 ° C to 85 ° C for the I suffix.
(2) Slew rate is measured differentially from an output level range of 25% to 75%.
3
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