OPA836_14 Datasheet, PDF (1/54 Pages) Texas Instruments – Very Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp

OPA836
OPA2836
www.ti.com
SLOS712E – JANUARY 2011 – REVISED SEPTEMBER 2013
Very Low-Power, Rail-to-Rail Out, Negative Rail In, VFB Op Amp
Check for Samples: OPA836, OPA2836
FEATURES
1
• Low Power:
– Supply Voltage: 2.5 V to 5.5 V
– Quiescent Current: 1 mA (Typ)
– Power Down Mode: 0.5µA Ttyp)
• Bandwidth: 205 MHz
• Slew Rate: 560 V/µs
• Rise Time: 3 ns (2 V_STEP)
• Settling Time: 22 ns (2 V_STEP)
• Overdrive Recovery Time: 60ns
• SNR: 0.00013% (–117.6 dBc) at 1 kHz (1 V_RMS)
• THD: 0.00003% (–130 dBc) at 1 kHz (1 V_RMS)
• HD₂/HD₃: –85dBc / –105 dBc at 1 MHz (2 V_PP)
• Input Voltage Noise: 4.6 nV/rtHz (f = 100 kHz)
• Input Offset Voltage: 65 µV (400 µV Max)
• CMRR: 116 dB
• Output Current Drive: 50 mA
• RRO: Rail-to-Rail Output
• Input Voltage Range: –0.2 V to 3.9 V
(5 V Supply)
• Operating Temperature Range:
–40°C to +125°C
APPLICATIONS
• Low Power Signal Conditioning
• Audio ADC Input Buffer
• Low Power SAR and ΔΣ ADC Driver
• Portable Systems
• Low Power Systems
• High Density Systems
0
-20
-40
-60
-80
VSIG
0V
VIN
2.7V
2k
1k
2k
2.7V
VS+
OPA836
VS-
VSIG
1.35V
100
2.2nF
1k
1k
5V 2.5V
+In VDD REF
ADS8326
-In
-100
-120
-140
0
20,000
40,000 60,000 80,000
Frequency (Hz)
100,000 120,000
DESCRIPTION
Fabricated using the industry-leading BiCom-3x
(SiGe complimentary bipolar) process, the OPA836
and OPA2836 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 2.5 V to 5.5 V Single Supply
and ±1.25 V to ±2.75 V dual supply. Consuming only
1 mA per channel and a unity gain bandwidth of 205
MHz, these amplifiers set an industry leading power-
to-performance ratio for rail-to-rail amplifiers.
For battery powered portable applications where
power is of key importance, the OPA836's and
OPA2836'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 <1.5
μA, the device offers an attractive solution for high
frequency amplifiers in battery powered applications.
The OPA836 and OPA2836 are offered in following
package options:
• OPA836 Single: SOT23-6 (DBV), and 10 pin
WQFN (RUN) with integrated gain resistors.
• OPA2836 Dual: SOIC-8 (D), VSSOP (MSOP) -10
(DGS), 10 pin WQFN (RUN), and 10 pin UQFN
(RMC).
The OPA836 RUN package option includes
integrated gain setting resistors for smallest possible
footprint on a printed circuit board (≈ 2mm x 2mm).
By adding circuit traces on the PCB, gains of +1, –1,
–1.33, +2, +2.33, –3, +4, –4, +5, –5.33, +6.33, –7, +8
and inverting attenuations of –0.1429, –0.1875,
–0.25, –0.33, –0.75 can be achieved. See the
Application Information section for details.
The devices are characterized for operation over the
extended industrial temperature range –40°C to
125°C.
OPA836 Related Products
DESCRIPTION
SINGLES DUALS TRIPLES
Rail-to-Rail
—
OPA2830
—
Rail-to-Rail, Low
Power
OPA835 OPA2835
—
Rail-to-Rail, Fixed
Gain
OPA832 OPA2832 OPA3832
General-Purpose, High OPA690 OPA2690 OPA3690
Slew Rate
Low-Noise, DC
Precision
OPA820 OPA2822
—
QUADS
OPA4830
—
—
—
OPA4820
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2011–2013, Texas Instruments Incorporated