OPA847 Series

Wideband, ultra-low noise, voltage feedback operational amplifier with shutdown

Catalog

Wideband, ultra-low noise, voltage feedback operational amplifier with shutdown

Part	Package / Case	Package / Case [y]	Package / Case [x]	Current - Input Bias	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Current - Supply	Number of Circuits	Voltage - Input Offset	Amplifier Type	Supplier Device Package	Voltage - Supply Span (Min) [Min]	Voltage - Supply Span (Max) [Max]	Gain Bandwidth Product	Slew Rate	Current - Output / Channel
Texas Instruments OPA847IDR	8-SOIC	3.9 mm	0.154 in	19 µA	85 °C	-40 °C	Surface Mount	18.1 mA	1	100 çV	Voltage Feedback	8-SOIC	5 V	12 V	3.9 GHz	950 V/µs	100 mA
Texas Instruments OPA847ID	8-SOIC	3.9 mm	0.154 in	19 µA	85 °C	-40 °C	Surface Mount	18.1 mA	1	100 çV	Voltage Feedback	8-SOIC	5 V	12 V	3.9 GHz	950 V/µs	100 mA
Texas Instruments OPA847IDBVT	SOT-23-6			19 µA	85 °C	-40 °C	Surface Mount	18.1 mA	1	100 çV	Voltage Feedback	SOT-23-6	5 V	12 V	3.9 GHz	950 V/µs	100 mA
Texas Instruments OPA847IDBVR	SOT-23-6			19 µA	85 °C	-40 °C	Surface Mount	18.1 mA	1	100 çV	Voltage Feedback	SOT-23-6	5 V	12 V	3.9 GHz	950 V/µs	100 mA
Texas Instruments OPA847IDG4	8-SOIC	3.9 mm	0.154 in	19 µA	85 °C	-40 °C	Surface Mount	18.1 mA	1	100 çV	Voltage Feedback	8-SOIC	5 V	12 V	3.9 GHz	950 V/µs	100 mA

Catalog

Wideband, ultra-low noise, voltage feedback operational amplifier with shutdown

Key Features

• HIGH GAIN BANDWIDTH: 3.9GHzLOW INPUT VOLTAGE NOISE: 0.85nV/√HzVERY LOW DISTORTION: –105dBc (5MHz)HIGH SLEW RATE: 950V/µsHIGH DC ACCURACY: VIO< ±100µVLOW SUPPLY CURRENT: 18.1mALOW SHUTDOWN POWER: 2mWSTABLE FOR GAINS12APPLICATIONSHIGH DYNAMIC RANGE ADC PREAMPSLOW NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERSWIDEBAND, HIGH GAIN AMPLIFIERSLOW NOISE DIFFERENTIAL RECEIVERSULTRASOUND CHANNEL AMPLIFIERSIMPROVED UPGRADE FOR THE OPA687, CLC425, AND LMH6642All trademarks are the property of their respective owners.HIGH GAIN BANDWIDTH: 3.9GHzLOW INPUT VOLTAGE NOISE: 0.85nV/√HzVERY LOW DISTORTION: –105dBc (5MHz)HIGH SLEW RATE: 950V/µsHIGH DC ACCURACY: VIO< ±100µVLOW SUPPLY CURRENT: 18.1mALOW SHUTDOWN POWER: 2mWSTABLE FOR GAINS12APPLICATIONSHIGH DYNAMIC RANGE ADC PREAMPSLOW NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERSWIDEBAND, HIGH GAIN AMPLIFIERSLOW NOISE DIFFERENTIAL RECEIVERSULTRASOUND CHANNEL AMPLIFIERSIMPROVED UPGRADE FOR THE OPA687, CLC425, AND LMH6642All trademarks are the property of their respective owners.

Description

The OPA847 combines very high gain bandwidth and large signal performance with an ultra-low input noise voltage (0.85nV/√Hz) while using only 18mA supply current. Where power saving is critical, the OPA847 also includes an optional power shutdown pin that, when pulled low, disables the amplifier and decreases the supply current to < 1% of the powered-up value. This optional feature may be left disconnected to ensure normal amplifier operation when no power-down is required. The combination of very low input voltage and current noise, along with a 3.9GHz gain bandwidth product, make the OPA847 an ideal amplifier for wideband transimpedance applications. As a voltage gain stage, the OPA847 is optimized for a flat frequency response at a gain of +20V/V and is stable down to gains as low as +12V/V. New external compensation techniques allow the OPA847 to be used at any inverting gain with excellent frequency response control. Using this technique in a differential Analog-to-Digital Converter (ADC) interface application, shown below, can deliver one of the highest dynamic range interfaces available. The OPA847 combines very high gain bandwidth and large signal performance with an ultra-low input noise voltage (0.85nV/√Hz) while using only 18mA supply current. Where power saving is critical, the OPA847 also includes an optional power shutdown pin that, when pulled low, disables the amplifier and decreases the supply current to < 1% of the powered-up value. This optional feature may be left disconnected to ensure normal amplifier operation when no power-down is required. The combination of very low input voltage and current noise, along with a 3.9GHz gain bandwidth product, make the OPA847 an ideal amplifier for wideband transimpedance applications. As a voltage gain stage, the OPA847 is optimized for a flat frequency response at a gain of +20V/V and is stable down to gains as low as +12V/V. New external compensation techniques allow the OPA847 to be used at any inverting gain with excellent frequency response control. Using this technique in a differential Analog-to-Digital Converter (ADC) interface application, shown below, can deliver one of the highest dynamic range interfaces available.