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參數(shù)資料
| 型號(hào)： | TLS21H62-3PW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Read/Write Preamplifier(5V,2通道低噪讀寫前置運(yùn)放) |
| 中文描述： | 讀/寫前置放大器（5V的，2通道低噪讀寫前置運(yùn)放） |
| 文件頁(yè)數(shù)： | 5/10頁(yè) |
| 文件大?。?/td> | 200K |
| 代理商： | TLS21H62-3PW |
TLS21H62-3PW
5-V THIN-FILM 2-CHANNEL LOW-NOISE READ/WRITE PREAMPLIFIER
SQHS015 – MAY 1996
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended free-air temperature range for read mode
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
G(VD)
Gain, differential voltage
Vin(p-p) = 1 mV at 1 MHz,
RL(RDX, RDY) = 1 k
260
300
340
V/V
VOC
Common mode output voltage
at RDX and RDY
Read mode
VCC–2.6
V
VOO
Output offset voltage
–300
300
mV
Dynamic range (peak to peak)
f = 5 MHz,
See Note 2
2
5
mV (p-p)
nV/
√
Hz
pA/
√
Hz
μ
A
mA
VI(noise)
II(noise)
II(BIAS)
IO
Input noise voltage
BW = 15 MHz,
Lh = 0, Rh = 0
0.5
0.75
Input noise current
3.5
Input bias current
180
Output current
See Note 3
1
2
BW
Bandwidth
Vin(p-p) = 1 mV at 1 MHz,
Vin(p-p) = 1 mV at 1 MHz,
f = 5 MHz
|Zs| < 5
(–1 dB)
|Zs| < 5
(–3 dB)
35
MHz
65
ri(D)
ro
ci(D)
CMRR
Input resistance, differential
500
pF
Output resistance, single ended
f = 5 MHz
20
50
Input capacitance, differential
f = 5 MHz
8.5
12
Common-mode rejection ratio
f = 5 MHz
54
75
dB
PSRR
Power-supply rejection ratio
f = 5 MHz
50
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 value
3. AC-coupled load, RDX, RDY
electrical characteristics over recommended free-air temperature range for write mode:
I
W
= 15 mA, L
h
= 1
μ
H, R
h
= 30
,
f
I(W)
= 5 MHz, C
L
(RDX, RDY) < 20 pF, R
L
(RDX, RDY) = 1 k
,
WDI t
r
/t
f
= 1 ns (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
GIW
VI(WC)
Gain, head current to current in RWC
Voltage at WCS
20
mA/mA
2.5
V
VO(D)
Differential-head voltage swing (peak to peak)
IW = 15 mA
Open head
3.4
5
V(p-p)
4.2
5.6
KW
V(UH)
I(UH)
IW
II(head)
IW
Co(D)
Z(UH)
Write current constant
48
50
52
V
Unselected head voltage
0.1
V
Unselected head current
Direct current (dc),
IX–IY
0.2
mA
Head write current
5
15
mA
μ
A
%
Head current
VCC fault
IW = 5 mA to 15 mA
±
200
+4
Write current variation
–4
Differential output capacitance
25
pF
k
Unselected head impedance
50
ro(D)
Differential output resistance
Without damping
4
With damping
280
350
Hi Z
420
Zo
Output Impedance at RDX or RDY
Write mode
tw
WDI pulse width
Flip-flop high
Flip-flop low
10
5
ns
High impedance
P
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