OPA835, OPA2835
www.ti.com
SLOS713B –JANUARY 2011–REVISED MAY 2011
Ultra Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp
Check for Samples: OPA835, OPA2835
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FEATURES
DESCRIPTION
Fabricated using the industry-leading BiCom-3x
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Ultra Low Power
(SiGe complimentary bipolar) process, the OPA835
and OPA2835 are single and dual ultra low-power,
rail-to-rail output, negative rail input, voltage-feedback
operational amplifiers designed to operate over a
power supply range of 2.5V to 5.5V Single Supply
and ±1.25V to ±2.75V dual supply. Consuming only
250µA per channel and a unity gain bandwidth of
56MHz, these amplifiers set an industry leading
power-to-performance ratio for rail-to-rail amplifiers.
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Supply Voltage: 2.5V to 5.5V
Quiescent Current: 250µA (typ)
Power Down Mode: 0.5µA (typ)
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Bandwidth: 56 MHz
Slew Rate: 160 V/µs
Rise Time: 10ns (2VSTEP
)
Settling Time: 45ns (2VSTEP
)
For battery powered portable applications where
power is of key importance, the OPA835's and
OPA2835's low power consumption and high
frequency performance offers designers performance
versus power not attainable in other devices. Coupled
with a power savings mode to reduce current to
<1.5μA, the device offers a very attractive solution for
high frequency amplifiers in battery powered
applications.
Overdrive Recovery Time: 195ns
SNR: 0.00015% (–116.4dBc) at 1 kHz (1VRMS
)
THD: 0.00003% (–130dBc) at 1 kHz (1VRMS
)
HD2/HD3: –70dBc/–73dBc at 1 MHz (2Vpp)
Input Voltage Noise: 9.3nV/rtHz (f=100 kHz)
Input Offset Voltage: 100 µV (500 µV max)
CMRR: 113dB
Output Current Drive: 40mA
RRO – Rail-to-Rail Output
The OPA835 and OPA2835 are offered in following
package options:
•
OPA835 Single: SOT23-6 (DBV), and 10 pin RUN
with integrated gain resistors.
Input Voltage Range: –0.2V to 3.9V (5V supply)
Operating Temperature Range: –40°C–125°C
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OPA2835 Dual: SOIC-8 (D), MSOP-10 (DGS),
and 10 pin RUN.
APPLICATIONS
The devices are characterized for operation over the
extended industrial temperature range –40°C to
125°C.
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Low Power Signal Conditioning
Audio ADC Input Buffer
Low Power SAR and ΔΣ ADC Driver
Portable Systems
OPA835 Related Products
DESCRIPTION
SINGLES
DUALS
OPA2830
OPA2836
TRIPLES
QUADS
OPA4830
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Low Power Systems
Rail-to-Rail
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—
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High Density Systems
Rail-to-Rail, Low
Power
OPA836
Ultrasonic Flow Meter
Rail-to-Rail, Fixed
Gain
OPA832
OPA690
OPA820
OPA2832 OPA3832
OPA2690 OPA3690
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—
0
2.7V
VSIG
VSIG
General-Purpose, High
Slew Rate
-20
2.7V
VS+
0V
1.35V
100
2.2nF
4.02k
4.02k
5V
2.5V
REF
2k
VIN
-40
-60
VDD
OPA835
VS-
+In
Low-Noise, DC
Precision
OPA2822
—
OPA4820
ADS8326
-In
2k
2k
-80
-100
-120
-140
0
20,000
40,000
60,000
80,000
100,000
120,000
Frequency (Hz)
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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.
UNLESS OTHERWISE NOTED this document contains
PRODUCTION DATA information 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.
Copyright © 2011, Texas Instruments Incorporated
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