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| THS4521 Datasheet, PDF (11/65 Pages) Texas Instruments – VERY LOW POWER, NEGATIVE RAIL INPUT, RAIL-TO-RAIL OUTPUT, FULLY DIFFERENTIAL AMPLIFIER | |||
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THS4521, THS4522, THS4524
SBOS458H â DECEMBER 2008 â REVISED JUNE 2015
Electrical Characteristics: VS+ â VSâ = 5 V (continued)
At VS+ = 5 V, VSâ = 0 V, VOCM = open, VOUT = 2 VPP (differential), RF = 1 kâ¦, RL = 1 k⦠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
Input offset current
Input offset current drift(3)
INPUT
TA = +25°C
TA = â40°C to +85°C
TA = â40°C to +85°C
B
±30
±180 nA
B
±30
±215 nA
B
±100
±600 pA/°C
Common-mode input voltage low
Common-mode input voltage high
Common-mode rejection ratio (CMRR)
TA = +25°C
TA = â40°C to +85°C
TA = +25°C
TA = â40°C to +85°C
A
â0.2
â0.1
V
B
â0.1
0
V
A
3.6
3.7
V
B
3.5
3.6
V
A
80
102
dB
Input impedance
C
100â¥0.7
kâ¦â¥pF
OUTPUT
Output voltage low
Output voltage high
Output current drive (for linear operation)
POWER SUPPLY
TA = +25°C
TA = â40°C to +85°C
TA = +25°C
TA = â40°C to +85°C
RL = 50 â¦
A
0.10
0.15
V
B
0.115
0.2
V
A
4.7
4.75
V
B
4.65
4.7
V
C
±55
mA
Specified operating voltage
B
2.5
5.0
5.5
V
Quiescent operating current, per channel
Power-supply rejection ratio (±PSRR)
TA = +25°C
TA = â40°C to +85°C
A
0.95
1.14
1.25 mA
B
0.9
1.15
1.3 mA
A
80
100
dB
POWER DOWN
Enable voltage threshold
Ensured on above 2.1 V
A
1.6
2.1
V
Disable voltage threshold
Ensured off below 0.7 V
A
0.7
1.6
V
Disable pin bias current
C
1
μA
Power-down quiescent current
C
20
μA
Turn-on time delay
Turn-off time delay
VOCM VOLTAGE CONTROL
Small-signal bandwidth
Time to VOUT = 90% of final value,
VIN= 2 V, RL = 200 â¦
B
Time to VOUT = 10% of original value,
VIN= 2 V, RL = 200 â¦
B
C
70
ns
60
ns
23
MHz
Slew rate
C
55
V/μs
Gain
A
0.98
0.99
1.02 V/V
Common-mode offset voltage from VOCM input
Measured at VOUT with VOCM input driven,
VOCM = 2.5 V ±1 V
B
Input bias current
VOCM = 2.5V ±1 V
B
VOCM voltage range
A
Input impedance
C
±5
±20
1 0.8 to 4.2
46â¥1.5
±9 mV
±25 μA
4
V
kâ¦â¥pF
Default output common-mode voltage offset from
(VS+â VSâ) / 2
Measured at VOUT with VOCM input open
A
±1
±5 mV
Copyright © 2008â2015, Texas Instruments Incorporated
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