THS4521-HT_15 Datasheet, PDF (6/27 Pages) Texas Instruments – VERY LOW POWER, NEGATIVE RAIL INPUT,RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER

THS4521-HT
SBOS548D – APRIL 2011 – REVISED MAY 2012
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
-55°C to 125°C
175°C
MIN TYP MAX MIN TYP MAX
-55°C to 210°C
MIN TYP MAX UNIT
TEST
LEVEL ⁽¹⁾
DC PERFORMANCE
Open-Loop Voltage
Gain (A_OL)
Input-Referred Offset
Voltage
102
±0.1 ±5
81.9
±0.13
90
dB
A
±0.43 ±11.5 mV
A
Input offset voltage
drift ⁽³⁾
±1
±28
±10
±2 ±50 μV/°C
B
Input Bias Current
±0.75 ±3.3
±0.75 ±4.5
±0.78 ±4.5 μA
A
Input bias current
drift ⁽³⁾
±3.3 ±14
±4.7
±4.8 ±17 nA/°C
B
Input Offset Current
±0.3 ±1.7
±0.5 ±3.2
±0.5 ±3.5 µA
A
Input offset current
drift ⁽³⁾
±1.1 ±8
±3.6
±1.26 ±9 nA/°C
B
INPUT
Common-Mode Input
Voltage Low
–0.1
0
-0.1
–0.1
0
V
A
Common-Mode Input
Voltage High
1.8
1.9
1.9
1.8
1.9
V
A
Common-Mode
Rejection Ratio
(CMRR)
80
105
95
74
98
dB
A
Input Resistance
154∥3.
2
12.3∥4
6
12.3∥4
6
kΩ∥pF
C
OUTPUT
Output Voltage Low
0.09 0.25
0.3
0.09 0.31
V
A
Output Voltage High
2.95 3.11
3.11
2.85 3.05
V
A
Output Current Drive
(for linear operation)
R_L = 50 Ω
±35 ⁽⁴⁾
±33 ⁽⁴⁾
±33 ⁽⁴⁾
mA
C
POWER SUPPLY
Specified Operating
Voltage
2.5
3.6 2.5
3.6 2.5
3.6
V
A
Quiescent Operating
Current, per channel
0.85
1
1.3 0.9 1.16 1.4 0.9
1.1 1.4 mA
A
Power-Supply
Rejection Ratio
(±PSRR)
66
85
62.5 74
60
80
dB
A
POWER DOWN
Enable Voltage
Threshold
Assured on
above 2.2 V
1
2.2
1
2.2
1
2.2
V
A
Disable Voltage
Threshold
Assured off
below 0.7 V
0.7
1.6
0.7 1.6
0.7
1.6
V
A
Disable Pin Bias
Current
1
1
1
μA
C
Power Down Quiescent
Current
2
10
10
μA
C
Turn-On Time Delay
Time to V_OUT = 90% of final
value, V_IN= 2 V, R_L = 200 Ω
86.5
99
Time to V_OUT = 10% of
Turn-Off Time Delay
original value,
136
145
V_IN= 2 V, R_L = 200 Ω
V_OCM VOLTAGE CONTROL
Small-Signal Bandwidth
21
13
99
144.5
13
ns
C
ns
C
MHz
C
(3) Input Offset Voltage Drift, Input Bias Current Drift and Input Offset Current Drift are average values calculated by taking data at -55°C
and 125°C, computing the difference and dividing by 180. High temperature drift data is an average value calculated by taking data at -
55°C and 210°C, computing the difference and diving by 265.
(4) Continuous operation with high current loads at elevated temperature may affect product reliability. Refer to operating lifetime chart
(Figure 1).
6
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