THS4541_16 Datasheet, PDF (8/61 Pages) Texas Instruments – THS4541 Negative Rail Input, Rail-to-Rail Output, Precision, 850-MHz Fully Differential Amplifier

THS4541
SLOS375A – AUGUST 2014 – REVISED SEPTEMBER 2014
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7.6 Electrical Characteristics: Vs+ – Vs– = 3 V
At T_A ≈ 25°C, Vocm = open (defaults midsupply), V_OUT = 2 V_PP, Rf = 402 Ω, Rload = 499 Ω, 50-Ω input match, G = 2 V/V,
single-ended input, differential output, and PD = +Vs, unless otherwise noted. See Figure 61 for an ac-coupled gain of a
2-V/V test circuit, and Figure 63 for a dc-coupled gain of a 2-V/V test circuit.
PARAMETER
TEST CONDITIONS
AC PERFORMANCE
Small-signal bandwidth
Gain-bandwidth product
Large-signal bandwidth
Bandwidth for 0.1-dB flatness
Slew rate⁽²⁾
Vout = 100 mV_PP, G = 1
Vout = 100 mV_PP, G = 2 (see Figure 61)
Vout = 100 mV_PP, G = 5
Vout = 100 mV_PP, G = 10
Vout = 100 mV_PP, G = 20
Vout = 2 V_PP, G = 2 (see Figure 61)
Vout = 2 V_PP, G = 2 (see Figure 61)
Vout = 2-V step, FPBW (see Figure 61)
Rise/fall time
Vout = 2-V step, G = 2, input ≤ 0.3 ns t_r
(see Figure 63)
Settling time
To 1%, Vout = 2-V step, t_r = 2 ns, G = 2
(see Figure 63)
To 0.1%, Vout = 2-V step, t_r = 2 ns, G = 2
(see Figure 63)
Overshoot and undershoot
Vout = 2-V step G = 2, input ≤ 0.3 ns t_r
(see Figure 63)
100-kHz harmonic distortion
10-MHz harmonic distortion
2nd-order intermodulation distortion
Vout = 2 V_PP, G = 2, HD2 (see Figure 61)
Vout = 2 V_PP, G = 2, HD3 (see Figure 61)
Vout = 2 V_PP, G = 2, HD2 (see Figure 61)
Vout = 2 V_PP, G = 2, HD3 (see Figure 61)
f = 10 MHz, 100-kHz tone spacing,
Vout envelope = 2 V_PP (1 V_PP per tone)
(see Figure 61)
3rd-order intermodulation distortion
f = 10 MHz, 100-kHz tone spacing,
Vout envelope = 2 V_PP (1 V_PP per tone)
(see Figure 61)
Input voltage noise
f > 100 kHz
Input current noise
f > 1 MHz
Overdrive recovery time
2X output overdrive, either polarity
Closed-loop output impedance
f = 10 MHz (differential)
TEST
MIN
TYP
MAX UNIT
LEVEL ⁽¹⁾
600
500
200
120
850
300
90
1300
1.8
5
8
10%
–140
–140
–92
–89
–89
MHz
C
MHz
C
MHz
C
MHz
C
MHz
C
MHz
C
MHz
C
V/µs
C
ns
C
ns
C
ns
C
C
dBc
C
dBc
C
dBc
C
dBc
C
dBc
C
–87
dBc
C
2.2
nV/√Hz
C
1.9
pA/√Hz
C
20
ns
C
0.1
Ω
C
(1) Test levels (all values set by characterization and simulation): (A) 100% tested at T_A ≈ 25°C; over temperature limits by characterization
and simulation. (B) Not tested in production; limits set by characterization and simulation. (C) Typical value only for information.
(2) This slew rate is the average of the rising and falling time estimated from the large-signal bandwidth as: (V_P / √2) · 2π · f_–3dB.
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