OPA4684 ,Quad, Low-Power, Current Feedback Operational AmplifierELECTRICAL CHARACTERISTICS: V = +5VSBoldface limits are tested at +25°C.R = 1kΩ , R = 100Ω to V /2, ..
OPA4703EA ,Brown Corporation - CMOS, Rail-to-Rail, I/O OPERATIONAL AMPLIFIERS
OPA4703UA ,12V, CMOS, Rail-to-Rail I/O, Operational AmplifierMAXIMUM RATINGSELECTROSTATICSupply Voltage, V+ to V– .. 13.2VDISCHARGE SENSITIVITY(2)Signal Input T ..
OPA4704UA ,12V, CMOS, Rail-to-Rail I/O, Operational AmplifierMAXIMUM RATINGSELECTROSTATICSupply Voltage, V+ to V– .. 13.2VDISCHARGE SENSITIVITY(2)Signal Input T ..
OPA4705EA/250 ,12V, Low Cost, CMOS, Rail-to-Rail I/O, Operational AmplifierMAXIMUM RATINGSELECTROSTATICSupply Voltage, V+ to V– .. 13.2VDISCHARGE SENSITIVITY(2)Signal Input T ..
OPA4727AIPW ,e-trim(TM) 20MHz, High Precision CMOS Operational Amplifier 14-TSSOP SBOS314H–SEPTEMBER 2004–REVISED APRIL 2007This integrated circuit can be damaged by ESD. Texas Inst ..
P80C32UBBB ,80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHzfeatures make it an even more powerful microcontroller for
P80C32UBBB ,80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHzapplications for general control systems.• Four 8-bit I/O portsROM/EPROM RAM Size Programmable Hard ..
P80C32UBBB ,80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHzapplications requiring 4K ROM/EPROM, see the 8XC51/80C31– ROM – 2 bits8-bit CMOS (low voltage, low ..
P80C32UBPN ,80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHzFEATURESThree different Single-Chip 8-Bit Microcontroller families are• 80C51 Central Processing Un ..
P80C32UBPN ,80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHzapplications for general control systems.• Four 8-bit I/O portsROM/EPROM RAM Size Programmable Hard ..
P80C32UFAA ,80C51 8-bit microcontroller family 128/256 byte RAM ROMless low voltage (2.7 V-5.5 V), low power, high speed (33 MHz)INTEGRATED CIRCUITS8XC52/54/58/80C328XC51FA/FB/FC/80C51FA8XC51RA+/RB+/RC+/RD+/80C51RA +80C51 8-bit ..
OPA4684
Quad, Low-Power, Current Feedback Operational Amplifier
www.ti.com
OPA4684Please 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.
SBOS240G – JUNE 2002 – REVISED JULY 2008
Quad, Low-Power, Current-Feedback
Operational Amplifier
FEA TURES MINIMAL BANDWIDTH CHANGE VERSUS GAIN 170MHz BANDWIDTH AT G = +2 > 120MHz BANDWIDTH TO GAIN > +10 LOW DISTORTION: < –78dBc at 5MHz HIGH OUTPUT CURRENT: 120mA SINGLE +5V TO +12V SUPPLY OPERATION DUAL ±2.5 TO ±6.0V SUPPLY OPERATION LOW SUPPLY CURRENT: 1.7mA/ch
DESCRIPTIONThe OPA4684 provides a new level of performance in low-
power, wideband, current-feedback (CFB) amplifiers. This
CFBPLUS amplifier is among the first to use an internally
closed-loop input buffer stage that enhances performance
significantly over earlier low-power CFB amplifiers. This new
architecture provides many of the benefits of a more ideal
CFB amplifier while retaining the benefits of very low power
operation. The closed-loop input stage buffer gives a very
low and linearized impedance path at the inverting input to
sense the feedback error current. This improved inverting
input impedance retains exceptional bandwidth to much
higher gains and improves harmonic distortion over earlier
solutions limited by inverting input linearity. Beyond simple
high-gain applications, the OPA4684 CFBPLUS amplifier per-
mits the gain setting element to be set with considerable
APPLICATIONS LOW-POWER BROADCAST VIDEO DRIVERS EQUALIZING FILTERS SAW FILTER HIGH-GAIN POST AMPLIFIERS MULTICHANNEL SUMMING AMPLIFIERS WIDEBAND DIFFERENTIAL CHANNELS ANALOG-TO-DIGITAL CONVERTERS INPUT
DRIVERS MULTIPLE POLE ACTIVE FILTERS OPA4658 LOW-POWER UPGRADEfreedom from amplifier bandwidth interaction. This allows
frequency response peaking elements to be added, multiple
input inverting summing circuits to have greater bandwidth,
and low-power line drivers to meet the demanding require-
ments of studio cameras and broadcast video.
The output capability of the OPA4684 also sets a new mark
in performance for low-power current-feedback amplifiers.
Delivering a full ±4VPP swing on ±5V supplies, the OPA4684
also has the output current to support > ±3V swing into 50Ω.
This minimal output headroom requirement is complemented
by a similar 1.2V input stage headroom giving exceptional
capability for single +5V operation.
The OPA4684’s low 6.8mA supply current is precisely trimmed
at 25°C. This trim, along with low shift over temperature and
supply voltage, gives a very robust design over a wide range
of operating conditions.
(patented design) 6
Normalized Gain (3dB/div) 100 200
BW (MHz) vs GAIN
MHz
