Datasheet ADA4700-1 (Analog Devices)

High Voltage, Precision Operational Amplifier Data Sheet ADA4700-1 FEATURES PIN CONFIGURATION Low input offset voltage: 0.2 mV typical NC 1 8 NC ADA4700-1 High output current drive: 30 mA Wide range of operating voltage: ±5 V to ±50 V –IN 2 7 V+ High slew rate: 20 V/µs typical +IN 3 6 OUT High gain bandwidth product: 3.5 MHz typical TOP VIEW V– 4 (Not to Scale) 5 NC Thermal regulation at junction temperature >145°C Ambient temperature range: −40°C to +85°C NOTES Low input bias current ≤ 15 nA typical 1. NC = NO CONNECT. DO NOT CONNECT TO THIS PIN.
001
2. CONNECT EXPOSED PAD TO V– OR LEAVE FLOATING.
1551- 1
APPLICATIONS
Figure 1.
Automated and bench top test equipment High voltage regulators and power amplifiers Data acquisition and signal conditioning Piezo drivers and predrivers General-purpose current sensing GENERAL DESCRIPTION
The ADA4700-1 is a high voltage, precision, single-channel
50 5
operational amplifier with a wide operating voltage range (±5 V
OUTPUT 40 4
to ±50 V) and relatively high output current drive. Its advanced
30 3
design combines low power (170 mW for a ±50 V supply), high
INPUT 20 2
bandwidth (3.5 MHz), and a high slew rate with unity-gain stability and phase inversion free performance. The ability to swing near
10 1 (V) T (V)
rail to rail at the output enables designers to maximize signal-
0 0 T PU T PU
to-noise ratios (SNRs).
U –10 –1 IN O
The ADA4700-1 is designed for applications requiring both ac and
–20 –2
dc precision performance, making the ADA4700-1 useful in a
–30 –3 ADA4700-1
wide variety of applications, including high voltage test equipment
VSY = ±50V –40 –4 AV = 20V/V
and instrumentation, high voltage regulators and power amplifiers,
RL = 2kΩ –50 –5
power supply control and protection, and as an amplifier or buffer
0 5 10 15 20 25 30 35 40
200 for transducers with wide output ranges. It is particularly well
TIME (µs)
11551- suited for high intensity LED testing applications where it provides Figure 2. Slew Rate highly accurate voltage and current feedback as wel as a predriver to provide accurate voltage and/or current sourcing stimulus to the LED string under test. The ADA4700-1 is specified over the industrial temperature range of −40°C to +85°C and includes thermal regulation at a junction temperature greater than 145°C and an integrated current limit. The ADA4700-1 is available in a thermally enhanced, 8-lead SOIC package with an exposed pad.
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Document Outline Features Applications General Description Pin Configuration Table of Contents Revision History Specifications VSY = ±50 V Electrical Characteristics VSY = ±24 V Electrical Characteristics VSY = ±5 V Electrical Charateristics Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuits Theory of Operation Thermal Regulation Applications Information Thermal Management Safe Operating Area Driving Capacitive Loads Increasing Current Drive Constant Current Applications Outline Dimensions Ordering Guide