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OPA2835IRUNT
Dual, Ultra Low Power, Rail to Rail Out, Negative Rail In, VFB Amplifier
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Manufacturer:
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Mfr.Part #:
OPA2835IRUNT
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Datasheet:
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Architecture:
Voltage FB
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Number of channels:
2
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Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V):
2.5
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Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V):
5.5
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EDA/CAD Models:
Availability: 7409 PCS
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OPA2835IRUNT General Description
The OPA835 and OPA2835 devices (OPAx835) are single and dual ultra-low-power, rail-to-rail output, negative-rail input, voltage-feedback (VFB) operational amplifiers designed to operate over a power supply range of 2.5-V to 5.5-V with a single supply, or ±1.25-V to ±2.75-V with a dual supply. Consuming only 250 µA per channel and with a unity gain bandwidth of 56 MHz, these amplifiers set an industry-leading performance-to-power ratio for rail-to-rail amplifiers.
For battery-powered, portable applications where power is of key importance, the low power consumption and high-frequency performance of the OPA835 and OPA2835 devices offers performance versus power that is not attainable in other devices. Coupled with a power-savings mode to reduce current to < 1.5 µA, these devices offer an attractive solution for high-frequency amplifiers in battery-powered applications.
The OPA835 RUN package option includes integrated gain-setting resistors for the smallest possible footprint on a printed-circuit-board (approximately 2.00 mm × 2.00 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 9-1 and Table 9-2 for details.
The OPA835 and OPA2835 devices are characterized for operation over the extended industrial temperature range of –40°C to +125°C.
Key Features
- Ultra-Low Power
- Supply Voltage: 2.5 V to 5.5 V
- Quiescent Current: 250 µA/ch (Typical)
- Power Down Mode: 0.5 µA (Typical)
- Bandwidth: 56 MHz (AV = 1 V/V)
- Slew Rate: 160 V/µs
- Rise Time: 10 ns (2 VSTEP)
- Settling Time (0.1%): 55 ns (2 VSTEP)
- Overdrive Recovery Time: 200 ns
- SNR: 0.00015% (–116.4 dBc) at 1 kHz (1 VRMS)
- THD: 0.00003% (–130 dBc) at 1 kHz (1 VRMS)
- HD2/HD3: –70 dBc/–73 dBc at 1 MHz (2 VPP)
- Input Voltage Noise: 9.3 nV/√ Hz (f = 100 kHz)
- Input Offset Voltage: 100 µV (±500-µV Maximum)
- CMRR: 113 dB
- Output Current Drive: 40 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
Specifications
Architecture | Voltage FB | Number of channels | 2 |
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) | 2.5 | Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) | 5.5 |
GBW (typ) (MHz) | 30 | BW at Acl (MHz) | 56 |
Acl, min spec gain (V/V) | 1 | Slew rate (typ) (V/µs) | 160 |
Vn at flatband (typ) (nV√Hz) | 9.3 | Vn at 1 kHz (typ) (nV√Hz) | 10 |
Iq per channel (typ) (mA) | 0.25 | Vos (offset voltage at 25°C) (max) (mV) | 0.5 |
Rail-to-rail | In to V-, Out | Features | Shutdown |
Rating | Catalog | Operating temperature range (°C) | -40 to 125 |
CMRR (typ) (dB) | 113 | Input bias current (max) (pA) | 400000 |
Offset drift (typ) (µV/°C) | 2.25 | Iout (typ) (mA) | 40 |
2nd harmonic (dBc) | 70 | 3rd harmonic (dBc) | 73 |
Frequency of harmonic distortion measurement (MHz) | 1 | feature-type | Low Power Amplifier |
feature-number-of-channels-per-chip | 2 | feature-rail-to-rail | Rail to Rail Output |
feature-process-technology | feature-output-type | ||
feature-maximum-input-offset-voltage-mv | 0.5@5V | feature-maximum-supply-current-ma | |
feature-maximum-input-offset-current-ua | 0.1@5V | feature-maximum-input-bias-current-ua | 0.4@5V |
feature-maximum-power-dissipation-mw | feature-typical-slew-rate-v-us | 260@5V | |
feature-typical-gain-bandwidth-product-mhz | 31 | feature-shut-down-support | No |
feature-packaging | Tape and Reel | feature-rad-hard | |
feature-pin-count | 10 | feature-cecc-qualified | No |
feature-esd-protection | Yes | feature-escc-qualified | |
feature-military | No | feature-aec-qualified | No |
feature-aec-qualified-number | feature-auto-motive | No | |
feature-p-pap | No | feature-eccn-code | EAR99 |
feature-svhc | No | feature-svhc-exceeds-threshold | No |
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Availability: 7409 PCS
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