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參數資料
| 型號： | TL461 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PRECISION SERIES REFERENCE |
| 中文描述： | 精密系列參考 |
| 文件頁數： | 3/4頁 |
| 文件大小： | 55K |
| 代理商： | TL461 |
TL461
PRECISION SERIES REFERENCE
SLVS263 – NOVEMBER 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at 25
°
C free-air temperature, V
in
= V
out
+ 2.5 V, I
out
= 0
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
TA
MIN
3.284
TYP
3.3
MAX
3.317
UNIT
VO
Output voltage
TL461-33
25
°
C
25
°
C
V
TL461-05
4.975
5
5.025
α
Vout
Output voltage temperature
coefficient (see Note 2)
Tmin < Tj < Tmax
–40
°
C to 85
°
C
10
30
ppm/
°
C
Line regulation
7 5 V < Vi < 20 V
7.5 V < Vin < 20 V
25
°
C
3.1
6.3
mV
VO
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
25
°
C
–40
°
C to 85
°
C
–40
°
C to 85
°
C
8.1
Iout = 100
t= 100
μ
A
2.2
3
4
VO
Load regulation sourcing
Iout = 10 mA
t= 10 mA
14
27
mV
35
Iout = 20 mA
t= 20 mA
22
40
50
Dropout voltage
Iout = 10 mA
Vout = GND
Vin = –15 V
1.4
V
IO
Output current
40
mA
μ
A
Reverse leakage
0.5
10
Quiescent current
125
180
μ
A
225
Standby current
50
μ
A
ENABLE bias c rrent
ENABLE bias current
ENABLE = 0.8 V
–40
°
C to 85
°
C
7
μ
A
ENABLE = 2 V
0.05
Output noise voltage (see Note 3)
0.1 Hz < f < 10 Hz
25
°
C
20
μ
Vpp
μ
Vrms
ppm/
√
k
Hz
10 Hz < f < 1 kHz
20
Long-term stability of output voltage (see Note 4)
25
°
C
70
NOTES:
2. Temperature coefficient is measured by dividing the change in output voltage by the specified temperature range.
Maximum Vout
Minimum Vout
TA
Vout
Vout
ppm
°
C
Vout
Voutat 25
°
C
10
6
T
A
Where:
TA is the recommended operating free-air temperature range of the device.
can be positive or negative, depending on whether minimum Vout or maximum Vout, respectively,
oVout
3. Peak-to-peak noise is measured with a single high-pass filter at 0.1 Hz and two-pole low-pass filter at 10 Hz. The unit is enclosed
in a still-air environment to eliminate thermocouple effects on the leads. The test time is 10 seconds. RMS noise is measured with
a single high-pass filter at 10 Hz and a two-pole low-pass filter at 1 kHz. The resulting output is full-wave rectified, then integrated
for a fixed period, making the final reading an average rather than RMS. A correction factor of 1.1 converts from average to RMS.
A second correction of 0.88 corrects for the nonideal bandpass of the filters.
4. Long-term stability typically has a logarithmic characteristic. Therefore, stability changes after 1000 hours tend to be much smaller
than before that time. Total drift in the second thousand hours is normally less than one third of that of the first thousand hours, with
a continuing trend toward reduced drift with time. Significant improvement in long-term drift can be realized by preconditioning the
device with a 100-hour to 200-hour, 125
°
C burn-in. Long-term stability also is affected by differential stresses between the device
and the board material that are created during board assembly.
P
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