THS6222 Texas instruments

THS6222

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THS6222

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Описание

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) with32-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.

Supply range (V_S): 8 V to 32 V
Integrated midsupply common-mode buffer
Large-signal bandwidth: 195 MHz (V_O = 16 V_PP)
Slew rate (16 V step): 5500 V/µs
Low distortion (V_S = 12 V, 50 Ω load):
- HD2: –80 dBc (1 MHz)
- HD3: –90 dBc (1 MHz)
Output current: 338 mA (V_S = 12 V, 25 Ω load)
Wide output swing (V_S = 12 V):
- 19.4 V_PP (100 Ω load)
- 18.6 V_PP (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

Number of channels	1
Architecture	PLC Line Driver
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)	8
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)	32
BW at Acl (MHz)	128
Acl, min spec gain (V/V)	5
Vn at flatband (typ) (nV√Hz)	2.7
Vn at 1 kHz (typ) (nV√Hz)	9
Iq per channel (typ) (mA)	19.5
Vos (offset voltage at 25°C) (max) (mV)	12
Rail-to-rail	No
Features	Adj Bias, Shutdown
Rating	Catalog
Operating temperature range (°C)	-40 to 85
CMRR (typ) (dB)	64
Input bias current (max) (pA)	6000000
Offset drift (typ) (µV/°C)	-40
GBW (typ) (MHz)	128
Iout (typ) (mA)	400
2nd harmonic (dBc)	98
3rd harmonic (dBc)	89
Frequency of harmonic distortion measurement (MHz)	1