OPA836_16 Datasheet, PDF (1/57 Pages) Texas Instruments – Operational Amplifiers

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
Reference
Design
OPA836, OPA2836
SLOS712G – JANUARY 2011 – REVISED OCTOBER 2015
OPAx836 Very-Low-Power, Rail-to-Rail Out, Negative-Rail In, Voltage-Feedback
Operational Amplifiers
1 Features
•1 Low Power:
– Supply Voltage: 2.5 V to 5.5 V
– Quiescent Current: 1 mA (Typ)
– Power Down Mode: 0.5 µA Typ)
• Bandwidth: 205 MHz
• Slew Rate: 560 V/µs
• Rise Time: 3 ns (2 V_STEP)
• Settling Time (0.1%): 22 ns (2 V_STEP)
• Overdrive Recovery Time: 60 ns
• 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: –85 dBc/–105 dBc at 1 MHz (2 V_PP)
• Input Voltage Noise: 4.6 nV/√Hz (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
2 Applications
• Low-Power Signal Conditioning
• Audio ADC Input Buffers
• Low-Power SAR and ΔΣ ADC Drivers
• Portable Systems
• Low-Power Systems
• High-Density Systems
3 Description
The OPA836 and OPA2836 devices are single- and
dual-channel, ultralow 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), or ±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 a key importance, the low power
consumption and high-frequency performance of the
OPA836 and OPA2836 devices offer designers
performance versus power that is not attainable in
other devices. Coupled with a power-saving mode
that reduces current to less than 1.5 μA, these
devices offer an attractive solution for high-frequency
amplifiers in battery-powered applications.
The OPA836 RUN package option includes
integrated gain-setting resistors for the smallest
possible footprint on a printed circuit board
(approximately 2 mm × 2 mm). 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 Table 3 and Table 4 for details.
The OPA836 and OPA2836 devices are
characterized for operation over the extended
industrial temperature range of –40°C to 125°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
OPA836
SOT-23 (6)
WQFN (10)
2.90 mm × 1.60 mm
2.00 mm × 2.00 mm
SOIC (8)
4.90 mm × 3.91 mm
OPA2836
VSSOP (10)
UQFN (10)
3.00 mm × 3.00 mm
2.00 mm × 2.00 mm
WQFN (10)
2.00 mm × 2.00 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
Harmonic Distortion vs Frequency
-40
V_S = 2.7 V,
-50 G = 1,
V_OUT = 1 Vpp,
-60 _{RF = 0 W,}
-70 ^{RL = 1 kW}
-80
-90
HD₂
-100
-110
-120
HD₃
-130
-140
10k
100k
1M
10M
f - Frequency - Hz
1
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.