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參數(shù)資料
| 型號： | TLS2158 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Low Noise Preamplifiers(單電源,8通道,低噪前置放大器) |
| 中文描述： | 低噪聲前置放大器（單電源，8通道，低噪前置放大器） |
| 文件頁數(shù)： | 16/25頁 |
| 文件大?。?/td> | 523K |
| 代理商： | TLS2158 |
TLS2154, TLS2156, TLS2158
5-V THIN-FILM 4-, 6-, AND 8-CHANNEL
LOW-NOISE READ/WRITE PREAMPLIFIERS
SQHS006 – SEPTEMBER 1996
16
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended supply voltage and operating free-air temperature
ranges:
I
I(W)
= 15 mA, L
h
= 1
μ
H, R
h
= 30
, f
DATA
= 5 MHz, CL = < 20 pF, WDX, WDY tr/tf = 1 ns
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ts(WR)
Settling time, write-to-read switch
To 90% of 100 mV
0.4
0.6
μ
s
ts(RW)
Settling time, read-to-write switch
To 90% of II(W)
0.1
0.3
μ
s
ts(CSW)
CS to unselect write
To 10% of II(W)
0.6
1
μ
s
ts(CSR)
CS to select read
To 90% of 100 mV
0.6
1
μ
s
ts(HS)
Settling time to any head
To 90% of 100 mV
0.2
0.6
μ
s
tpd
tpd
Propagation delay time
To write current
Lh = 0
μ
H, Rh = 0
Lh = 0
μ
H, Rh = 0
Lh = 0
μ
H, Rh = 0
Lh = 1
μ
H, Rh = 30
8
11
μ
s
Propagation delay time, differential
WDX to Ix or WDY to Iy
0.5
μ
s
trtf
tr, tf
Rise and fall times write current
Rise and fall times, write current
2
3
μ
s
7.5
10
t(su)
WUS safe to unsafe (transition delay
time)
WDX/WDY
≤
1000 kHz
0.6
2
3.6
μ
s
t(us)
WUS unsafe to safe (transition delay
time)
Fault cleared
All except WDX/WDY
frequency low, see
Note 4
0.2
0.6
μ
s
Fault cleared
1.1
2.1
NOTE 4: Device clears the WDX/WDY frequency low fault condition by detecting minimum frequency (at least one complete period cycle).
switching characteristics over recommended supply voltage and operating free-air temperature
ranges
PARAMETER
MIN
TYP
MAX
UNIT
Vhys
Low VCC threshold voltage
(hysteresis)
Fault detected
3.9
4.1
4.3
V
Fault removed
4.2
4.3
4.4
f(WDX–WDY)
Frequency low fault detection at WDX and WDY
1000
kHz
tpd
Propagation delay time, frequency
p g
low detection at WDX and WDY
Safe to unsafe
0.6
2
3.6
μ
s
Unsafe to safe
1.1
2.1
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