THS4521_10 Datasheet, PDF (4/48 Pages) Texas Instruments – VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER

THS4521
THS4522
THS4524
SBOS458D – DECEMBER 2008 – REVISED AUGUST 2010
www.ti.com
ELECTRICAL CHARACTERISTICS: V_S+ – V_S– = 3.3 V (continued)
At V_S+ = +3.3 V, V_S– = 0 V, V_OCM = open, V_OUT = 2 V_PP (differential), R_L = 1 kΩ differential, G = 1 V/V, single-ended input,
differential output, input and output referenced to midsupply, unless otherwise noted.
PARAMETER
CONDITIONS
THS4521, THS4522, THS4524
MIN
TYP
MAX
UNIT
TEST
LEVEL ⁽¹⁾
INPUT
Common-Mode Input Voltage Low
Common-Mode Input Voltage High
Common-Mode Rejection Ratio (CMRR)
T_A = +25°C
T_A = –40°C to +85°C
T_A = +25°C
T_A = –40°C to +85°C
–0.2
–0.1
V
A
–0.1
0
V
B
1.9
2
V
A
1.8
1.9
V
B
80
100
dB
A
Input Resistance
110∥1.5
kΩ∥pF
C
OUTPUT
Output Voltage Low
Output Voltage High
Output Current Drive (for linear operation)
POWER SUPPLY
T_A = +25°C
T_A = –40°C to +85°C
T_A = +25°C
T_A = –40°C to +85°C
R_L = 50 Ω
0.08
0.15
V
A
0.09
0.2
V
B
3.0
3.1
V
A
2.95
3.05
V
B
±35
mA
C
Specified Operating Voltage
2.5
5.5
V
B
Quiescent Operating Current, per channel
Power-Supply Rejection Ratio (±PSRR)
T_A = +25°C
T_A = –40°C to +85°C
0.9
1.0
1.2
mA
A
0.85
1.0
1.25
mA
B
80
100
dB
A
POWER DOWN
Enable Voltage Threshold
Assured on above 2.1 V
1.6
2.1
V
A
Disable Voltage Threshold
Assured off below 0.7 V
0.7
1.6
V
A
Disable Pin Bias Current
1
mA
C
Power Down Quiescent Current
10
mA
C
Turn-On Time Delay
Turn-Off Time Delay
V_OCM VOLTAGE CONTROL
Small-Signal Bandwidth
Time to V_OUT = 90% of final value, V_IN= 2 V,
R_L = 200 Ω
108
Time to V_OUT = 10% of original value, V_IN= 2
V, R_L = 200 Ω
88
23
ns
B
ns
B
MHz
C
Slew Rate
55
V/ms
C
Gain
0.98
0.99
1.02
V/V
A
Common-Mode Offset Voltage from V_OCM Input
Measured at V_OUT with V_OCM input driven,
V_OCM = 1.65 V ±0.5 V
±2.5
±4
mV
B
Input Bias Current
V_OCM = 1.65 V ±0.5 V
±5
±8
mA
B
V_OCM Voltage Range
1
0.8 to 2.5 2.3
V
A
Input Impedance
72∥1.5
kΩ∥pF
C
Default Output Common-Mode Voltage Offset from
(V_S+– V_S–)/2
THERMAL CHARACTERISTICS
Measured at V_OUT with V_OCM input open
±1.5
±5
mV
A
Specified Operating Range
All Packages
–40 to +85
°C
C
Thermal Resistance, q _JA
THS4521 D
SO-8
Junction-to-ambient
194
°C/W
C
DGK
MSOP-8
269
°C/W
C
THS4522 PW
TSSOP-16
116
°C/W
C
THS4524 DBT
TSSOP-38
81
°C/W
C
4
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