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參數(shù)資料
| 型號： | TLS2156 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Low Noise Preamplifiers(單電源,6通道,低噪前置放大器) |
| 中文描述： | 低噪聲前置放大器（單電源，6通道，低噪前置放大器） |
| 文件頁數(shù)： | 1/25頁 |
| 文件大?。?/td> | 523K |
| 代理商： | TLS2156 |
TLS2154, TLS2156, TLS2158
5-V THIN-FILM 4-, 6-, AND 8-CHANNEL
LOW-NOISE READ/WRITE PREAMPLIFIERS
SQHS006 – SEPTEMBER 1996
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Operate From a Single 5-V Supply (
±
10%)
Low-Power Dissipation:
– Read Mode = 105 mW Typical
– Idle Mode = 0.5 mW Typical
High Performance:
– Read-Mode Gain = 300 V/V Typical
– Input Noise = 0.50 nV /
√
Hz Typical
– Input Capacitance
= 8.5 pF Typical
– Write-Current Range = 3 mA to 35 mA
Bank-Write Function
Designed for Two-Terminal Thin-Film or
Metal-In-Gap (MIG) Recording Head
Write-Current Source Programmable
from 3 mA to 35 mA (Base to Peak)
Power-Supply Fault Protection
Write-Unsafe Detection
Schottky-Isolated Damping Resistor
Power-Up/-Down Protection
Differential-Write Voltage 7.5 Vp-p Typical
description
The TLS2154, TLS2156, and TLS2158 are BiCMOS, monolithic preamplifiers designed for two-terminal
thin-film or metal-in-gap (MIG) recording heads. The preamplifiers incorporate data-protection circuitry for all
channels and feature low-noise read paths and write-current controls. When deactivated, the preamplifiers
enter an idle mode that reduces power dissipation to 0.5 mW, typically. The write-current generator is disabled
during power sequencing to provide power-supply fault protection.
During write and idle modes, the differential read-data (RDX and RDY) lines are placed in a high-impedance
state to improve system write-to-read and idle-to-read recovery times. The servo-write feature allows increased
throughput at the servo-write stage. TLS2156 and TLS2158 have multiple-head-select servo-write functions.
Isolated damping resistors effectively switch out the resistance during read operations.
The 24-pin TLS2154 and 36-pin TLS2158 provide optional shield-line pins located adjacent to the outer-head
pins that, when bonded out, can be used to reduce the effects of mutual inductance. The optional flip-flop for
write-data input can be enabled or disabled.
device name and options
Since these devices have many options, the device part numbers indicate those options. Table 1 shows the
relationship between device part numbers and available options.
Table 1. Options Offered
DEVICE PART NUMBER
DESCRIPTION OF OPTION
TLS21A5X – ZPKG
Flip-flop enabled and shield line bonded (4- or 8-channel only)
B
Flip-flop disabled and shield line bonded (4- or 8-channel only)
C
Flip-flop enabled and shield line not bonded
D
Flip-flop disabled and shield line not bonded
X
Number of channels (4, 6, or 8)
Damping resistor value ( 9 = 900
/
3 = 350
)
Package designator
– Z
DA, DB, DW, or PW
Copyright
1996, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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| TLS21H62-3PW | Read/Write Preamplifier(5V,2通道低噪讀寫前置運(yùn)放) |
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| TLS24302 | Magnetoresistive/Thin-Film Read/Write Preamplifiers(2通道磁阻/薄膜讀/寫用前置放大器) |
| TLS24306 | Magnetoresistive/Thin-Film Read/Write Preamplifiers(6通道磁阻/薄膜讀/寫用前置放大器) |
| TLS24308 | Magnetoresistive/Thin-Film Read/Write Preamplifiers(8通道磁阻/薄膜讀/寫用前置放大器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLS21A64-3Y | 制造商:Texas Instruments 功能描述: |
| TLS21A66-3Y | 制造商:Texas Instruments 功能描述: |
| TLS21AA66-3Y | 制造商:Texas Instruments 功能描述: |
| TLS21C58-3DA | 制造商:Texas Instruments 功能描述: |
| TLS21D58-3DA | 制造商:Texas Instruments 功能描述: |
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