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| 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)： | 14/25頁 |
| 文件大小： | 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
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended free-air temperature range for
TTL inputs CS, R/W, and
HS0–HS2, TTL outputs WUS, and PECL inputs WDX and WDY
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOL
IOH
Low-level output voltage at WUS
IO= 2 mA
VO = 5 V
VIH = 2 V
VIH = 2 V
Vin= VCC–2.2 V
0.5
V
μ
A
High-level output current at WUS
20
IIH
Hi h l
High-level input current
CS, R/W (TTL)
HS0–HS2
–560
–300
60
100
A
μ
WDX or WDY (PECL)
50
IIL
Low-level input current
CS, R/W (TTL)
HS0–HS2
VIL = 0.8 V
VIL = 0.8 V
Vin= VCC–0.8 V
–750
–420
25
40
A
μ
WDX or WDY (PECL)
50
Pullup resistors are included on CS and R/W.
Pulldown resistors are included on HS0–HS2.
electrical characteristics over recommended free-air temperature range for read mode
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VO(RD)
Common mode output voltage at RDX
and RDY
Read mode
VCC –2.6
V
VOO
Output offset voltage
–300
300
mV
VI(noise)
Input noise voltage
BW = 15 MHz, Lh = 0, Rh = 0
0.50
0.65
nV /
√
Hz
Dynamic range, peak to peak
f = 5 MHz, see Note 2
2
5
mV
G(VD)
Gain, differential voltage
Vin(p-p) = 1mV at 1 MHz,
RL(RDX, RDY) = 1 k
260
300
340
V/V
II(noise)
Input noise current
3.5
4.5
pA /
√
Hz
II(BIAS)
Input bias current
180
μ
A
IO
Output current
See Note 3
1
2
mA
BW
Bandwidth
Vin(p-p) = 1 mV at 1 MHz,
|Zs| < 5
(–1 dB)
35
MHz
Vin(p-p) = 1 mV at 1 MHz,
|Zs| < 5
(–3 dB)
65
ri(D)
Differential input resistance
f = 5 MHz
500
ro
Output resistance (single ended)
f = 5 MHz
20
50
ci(D)
Differential input capacitance
f = 5 MHz
8.5
12
pF
CMRR
Common mode rejection ratio
f = 5 MHz
54
75
dB
PSRR
Power supply rejection ratio
f = 5 MHz
54
60
dB
SP
Channel separation
f = 5 MHz
54
72
dB
NOTES:
2. AC input voltage where gain falls to 90% of its small signal gain values
3. AC coupled load, RDX, RDY
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