THS4521 Datasheet, PDF (10/65 Pages) Texas Instruments – VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER

THS4521, THS4522, THS4524
SBOS458H – DECEMBER 2008 – REVISED JUNE 2015
www.ti.com
7.6 Electrical Characteristics: V_S+ – V_S– = 5 V
At V_S+ = 5 V, V_S– = 0 V, V_OCM = open, V_OUT = 2 V_PP (differential), R_F = 1 kΩ, R_L = 1 kΩ differential, G = 1 V/V, single-ended
input, differential output, input and output referenced to midsupply, unless otherwise noted.
PARAMETER
TEST CONDITIONS
TEST
LEVEL ⁽¹⁾
MIN
TYP
MAX UNIT
AC PERFORMANCE
Small-signal bandwidth
Gain bandwidth product
Large-signal bandwidth
Bandwidth for 0.1-dB flatness
Rising slew rate (differential)
Falling slew rate (differential)
Overshoot
Undershoot
Rise time
Fall time
Settling time to 1%
HARMONIC DISTORTION
V_OUT = 100 mV_PP, G = 1
C
V_OUT = 100 mV_PP, G = 2
C
V_OUT = 100 mV_PP, G = 5
C
V_OUT = 100 mV_PP, G = 10
C
V_OUT = 100 mV_PP, G = 10
C
V_OUT = 2 V_PP, G = 1
C
V_OUT = 2 V_PP, G = 1
C
V_OUT = 2-V Step, G = 1, R_L = 200 Ω
C
V_OUT = 2-V Step, G = 1, R_L = 200 Ω
C
V_OUT = 2-V Step, G = 1, R_L = 200 Ω
C
V_OUT = 2-V Step, G = 1, R_L = 200 Ω
C
V_OUT = 2-V Step, G = 1, R_L = 200 Ω
C
V_OUT = 2-V Step, G = 1, R_L = 200 Ω
C
V_OUT = 2-V Step, G = 1, R_L = 200 Ω
C
145
50
20
9.5
95
145
30
490
600
1%
2.6%
3.4
3
10
MHz
MHz
MHz
MHz
MHz
MHz
MHz
V/μs
V/μs
ns
ns
ns
2nd harmonic
f = 1 MHz, V_OUT = 2 V_PP, G = 1
C
f = 1 kHz, V_OUT = 1 V_RMS, G = 1⁽²⁾,
differential input
C
–85
dBc
–133
dBc
3rd harmonic
f = 1 MHz, V_OUT = 2 V_PP, G = 1
C
f = 1 kHz, V_OUT = 1 V_RMS, G = 1⁽²⁾,
differential input
C
–91
dBc
–141
dBc
Second-order intermodulation distortion
Two-tone, f₁ = 2 MHz, f₂ = 2.2 MHz,
V_OUT = 2-V_PP envelope
C
Third-order intermodulation distortion
Two-tone, f₁ = 2 MHz, f₂ = 2.2 MHz,
V_OUT = 2-V_PP envelope
C
Input voltage noise
f > 10 kHz
C
–86
dBc
–93
dBc
4.6
nV/√Hz
Input current noise
f > 100 kHz
C
0.6
pA/√Hz
SNR
V_OUT = 5 V_PP, 20 Hz to 22 kHz BW,
differential input
C
123
dBc
THD+N
f = 1 kHz , V_OUT = 5 V_PP, 20 Hz to 22 kHz
BW, differential input
C
112
dBc
Overdrive recovery time
Overdrive = ±0.5 V
C
75
ns
Output balance error
Closed-loop output impedance
V_OUT = 100 mV, f < 2 MHz, V_IN differential
C
f = 1 MHz (differential)
C
–57
dB
0.3
Ω
Channel-to-channel crosstalk (THS4522. THS4524) f = 10 kHz, measured differentially
C
–125
dB
DC PERFORMANCE
Open-loop voltage gain (A_OL)
Input-referred offset voltage
Input offset voltage drift⁽³⁾
Input bias current⁽⁴⁾
Input bias current drift⁽³⁾
T_A = +25°C
T_A = –40°C to +85°C
T_A = –40°C to +85°C
T_A = +25°C
T_A = –40°C to +85°C
T_A = –40°C to +85°C
A
100
119
dB
A
±0.24
±2 mV
B
±0.5
±3.5 mV
C
±2
μV/°C
B
0.7
0.9 μA
B
0.9
1.1 μA
B
±1.8
±2.2 nA/°C
(1) Test levels: (A) 100% tested at 25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization
and simulation. (C) Typical value only for information.
(2) Not directly measurable; calculated using noise gain of 101 as described in the Applications section, Audio Performance.
(3) Input offset voltage drift, input bias current drift, input offset current drift, and V_OCM drift are average values calculated by taking data at
the maximum-range ambient-temperature end points, computing the difference, and dividing by the temperature range. Maximum drift is
set by the distribution of a large sampling of devices. Drift is not specified by a test or a quality assurance (QA) sample test.
(4) Input bias current is positive out of the device.
10
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