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THS6222 Scheda tecnica(PDF) 1 Page - Texas Instruments

Il numero della parte THS6222
Spiegazioni elettronici  THS6222 8 V to 32 V, Differential Broadband HPLC Line Driver With Common-mode Buffer
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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THS6222 Scheda tecnica(HTML) 1 Page - Texas Instruments

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+
±
VS+
VS±
+
±
5 k
5 k
520
D1
OUT
D1
INt
D2
INt
D2
OUT
VS+
VSt
CM
Buffer
Thermal
Protection
Bias Current Control
BIAS
1
BIAS
2
IADJ
+12 V
RF1
1.24 k
RG
274
RF2
1.24 k
RS1
2.49
GND
+12 V
RS2
2.49
+12 V
100 nF
100 nF
AV =
10 V/V
RL
50
1:1
50
Power Line
100 nF
Optional
100 nF
100 nF
PLC ASIC
DAC f
THS6222
D1
IN+
VCM
D2
IN+
D
GND
GND
RT1
249
RT2
249
1-bit power mode control
Full-bias / shutdown
Product
Folder
Order
Now
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Documents
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Software
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Community
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
THS6222
SBOS974B – AUGUST 2019 – REVISED APRIL 2020
THS6222 8 V to 32 V, Differential Broadband HPLC Line Driver With Common-mode Buffer
1
1 Features
1
Supply range (VS): 8 V to 32 V
Integrated midsupply common-mode buffer
Large-signal bandwidth: 195 MHz (VO = 16 VPP)
Slew rate (16 V step): 5500 V/µs
Low distortion (VS = 12 V, 50 Ω load):
HD2: –80 dBc (1 MHz)
HD3: –90 dBc (1 MHz)
Output current: 338 mA (VS = 12 V, 25 Ω load)
Wide output swing (VS = 12 V):
19.4 VPP (100 Ω load)
18.6 VPP (50 Ω load)
Adjustable power modes:
Full-bias mode: 19.5 mA
Mid-bias mode: 15 mA
Low-bias mode: 10.4 mA
Low-power shutdown mode
IADJ pin for variable bias
Integrated overtemperature protection
Pin-compatible with the 24-pin THS6212 VQFN
2 Applications
SGCC HPLC line drivers
Smart meters
Data concentrators
Power line communications gateways
Home networking PLC
Differential DSL line drivers
3 Description
The THS6222 is a differential line-driver amplifier with
a current-feedback architecture manufactured using
Texas Instruments' proprietary, high-speed, silicon-
germanium (SiGe) process. The device is targeted for
use
in
broadband,
high-speed,
power
line
communications (HPLC) line driver applications that
require high linearity when driving heavy line loads.
The unique architecture of the THS6222 uses
minimal quiescent current while achieving very high
linearity. The amplifier has an adjustable current pin
(IADJ) that sets the nominal current consumption
along with the multiple bias modes that allow for
enhanced power savings where the full performance
of the amplifier is not required. Shutdown bias mode
provides further power savings during receive mode
in time division multiplexed (TDM) systems while
maintaining high output impedance. The integrated
midsupply common-mode buffer eliminates external
components, reducing system cost and board space.
The wide output swing of 57 VPP (100 Ω load) with 32
V power supplies, coupled with over 650 mA current
drive (25 Ω load), allows for wide dynamic range that
keeps distortion minimal.
The THS6222 is available in a 24-pin VQFN package
with exposed thermal pad and is specified for
operation from –40°C to +85°C ambient temperature.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
THS6222
VQFN (24)
5.00 mm × 4.00 mm
Wafer Sale (19)
1261.00 µm × 1641.00 µm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Line-Driver Circuit Using the THS6222


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