THS4121IDGN Datasheet, PDF (4/30 Pages) Texas Instruments – HIGH-SPEED FULLY DIFFERENTIAL I/O AMPLIFIERS

THS4120
THS4121
SLOS319D – FEBRUARY 2001 – REVISED OCTOBER 2004
ELECTRICAL CHARACTERISTICS (Continued)
V_DD = 3.3 V, R_L = 800 Ω, T_A = 25°C (unless otherwise noted)⁽¹⁾
PARAMETER
TEST CONDITIONS
MIN
INPUT CHARACTERISTICS
CMRR Common-mode rejection ratio
T_A = full range
64
V_ICR Common-mode input voltage range
T_A = full range
0.65 to
V_DD – 0.1
r_i
Input resistance (dc level)
C_i
Input capacitance, closed loop
r_o
Output resistance
OUTPUT CHARACTERISTICS
Measured into each input terminal
See Figure 16
V_OH High-level output Voltage
V_OL Low-level output Voltage
I_O
Output current (sink), R_L = 7 Ω
I_O
Output current (source), R_L = 7 Ω
POWER SUPPLY
V_IC = V_DD/2, V_DD = 3.3 V,
V_IC = V_DD/2, V_DD = 3.3 V,
V_DD = 3.3 V,
V_DD = 3.3 V,
T_A = 25°C
T_A = 25°C
T_A = 25°C
T_A = 25°C
V_DD Supply voltage range
Single supply
I_DD Quiescent current (per amplifier)
V_DD = 3.3 V
PSRR Power-supply rejection ratio
T_A = 25°C
POWER-DOWN CHARACTERISTICS (THS4120 ONLY)
T_A = 25°C
T_A = full range
Power-down voltage level⁽²⁾
Enable
Power down
Power-down quiescent current
t_on
Turn-on time delay
t_off
Turn-off time delay
z_o
Output impedance
T_A = 25°C
T_A = full range
50% of final supply current value
f = 1 MHz
3.05
0.25
80
20
68
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TYP MAX UNIT
96
dB
0.35
to
V
V_DD
820
MΩ
3
pF
1
Ω
3.15
V
0.15
V
100
mA
25
mA
3.3
V
11 13.5
mA
16
85
dB
>1.4
V
<1.2
120
µA
130
4.8
µs
3
ns
1
kΩ
(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) For detail information on the power-down circuit, see the power-down section in the application section of this data sheet.
Table of Graphs
TYPICAL CHARACTERISTICS
SR
THD
Small-signal frequency response
Slew rate
Total harmonic distortion
Harmonic distortion
V_O
V_n
V_OO
CMMR
z_os
Third intermodulation distortion
Output voltage
Settling time
Voltage noise
Output offset voltage
Common-mode rejection ratio
Single-ended output impedance (closed loop)
vs Frequency
vs Output voltage
vs Frequency
vs Output voltage
vs Output voltage
vs Load resistance
vs Frequency
vs Common-mode input voltage
vs Frequency
vs Frequency
FIGURE
1
2
3
4
5, 6, 7
8, 9
10
11
12
13
14
15
16
4
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