AD8031ANZ

FEATURES
Low power Supply current 800 A/amplifier Fully specified +5 V, and ±5 V supplies

High speed and fast settling V 80 MHz, -3 dB bandwidth +1) 30 V/s slew rate 125 ns settling time to 0.1%

Rail-to-rail input and output No phase reversal with input 0.5 V beyond supplies Input CMVR extends beyond rails 200 mV Output swing to within mV of either rail

Output current: 15 mA High grade option: VOS (maximum) 1.5 mV
APPLICATIONS

High speed, battery-operated systems High component density systems Portable test instruments A/D buffers Active filters High speed, set-and-demand amplifiers

The AD8031 (single) and AD8032 (dual) single-supply, voltage feedback amplifiers feature high speed performance with 80 MHz of small signal bandwidth, 30 V/s slew rate, and 125 ns settling time. This performance is possible while consuming less than mW of power from a single 5 V supply. These features increase the operation time of high speed, battery-powered systems without compromising dynamic performance.

The products have true single-supply capability with rail-to-rail input and output characteristics and are specified for +5 V, and ±5 V supplies. The input voltage range can extend 500 mV beyond each rail. The output voltage swings to within mV of each rail providing the maximum output dynamic range.

The AD8031/AD8032 also offer excellent signal quality for only A of supply current per amplifier; THD is -62 dBc with 2 V p-p, 1 MHz output signal, and ­86 dBc for a 100 kHz, 4.6 V p-p signal +5 V supply. The low distortion and fast settling time make them ideal as buffers to single-supply ADCs.

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

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Figure 2. 8-Lead PDIP (N), SOIC_N (R), and MSOP (RM)

Operating on supplies from +12 V and dual supplies ±6 V, the AD8031/AD8032 are ideal for a wide range of applications, from battery-operated systems with large bandwidth requirements to high speed systems where component density requires lower power dissipation. The AD8031/AD8032 are available in 8-lead PDIP and 8-lead SOIC_N packages and operate over the industrial temperature range to +85°C. The AD8031A is also available in the space-saving 5-lead SOT-23 package, and the AD8032A is available an 8-lead MSOP package.

+2.7 V Supply +5 V Supply ±5 V Supply : 5 Absolute Maximum Ratings : 6 Maximum Power Dissipation : 6 ESD Caution : 6 Typical Performance Characteristics : 7

F to Rev. G Changes to Second Paragraph of Theory of Operation Section : 13 Changes to Ordering Guide E to Rev. F Changed Input Current Noise = 100 kHz from 2.4 pA/Hz to 0.4 pA/Hz (Throughout) D to Rev. E Changes to DC Performance Parameter, Table : 3 Updated Outline Dimensions : 19 Changes to Ordering Guide C to Rev. D Change to Table 3 Column Heading : 5 Change to Ordering Guide B to Rev. C Updated Format : Universal Updated Outline Dimensions : 18 Change to Ordering Guide A to Rev. B

Theory of Operation : 13 Input Stage Operation : 13 Overdriving the Input Stage : 13 Output Stage, Open-Loop Gain and Distortion vs. Clearance from Power Supply : 14 Output Overdrive Recovery : 14 Driving Capacitive Loads : 15

Applications A 2 MHz Single-Supply, Biquad Band-Pass Filter : 16 High Performance, Single-Supply Line Driver : 16

SPECIFICATIONS

­3 dB Small Signal Bandwidth Slew Rate Settling Time to 0.1% DISTORTION/NOISE PERFORMANCE Total Harmonic Distortion

Input Voltage Noise Input Current Noise

INPUT CHARACTERISTICS Common-Mode Input Resistance Differential Input Resistance Input Capacitance Input Voltage Range

Output Voltage Swing Low Output Voltage Swing High Output Voltage Swing Low Output Voltage Swing High Output Current Short Circuit Current

Operating Range Quiescent Current per Amplifier Power Supply Rejection Ratio

Conditions 0.4 V p-p 2 V step 2 V step, = 1 MHz, 2 V p-p, = 100 kHz, 2 V p-p, = 1 kHz = 100 kHz = 1 kHz = 5 MHz VCM = VCC/2; VOUT 1.35 V TMIN to TMAX VCM = VCC/2; VOUT 1.35 V VCM = VCC/2; VOUT 1.35 V TMIN to TMAX VCM = VCC/2; VOUT 2.35 V TMIN to TMAX