Datasheet Analog Devices AD795 — Datenblatt

FEATURES CONNECTION DIAGRAM Low power replacement for Burr-Brown
OPA111, OPA121 op amps
Low noise
3.3 μV p-p maximum, 0.1 Hz to 10 Hz
11 nV/√Hz maximum at 10 kHz
0.6 fA/√Hz at 1 kHz
High dc accuracy
500 μV maximum offset voltage
10 μV/°C maximum drift
2 pA maximum input bias current
Low power: 1.5 mA maximum supply current NC 1 8 NC –IN 2 7 +VS +IN 3 6 OUTPUT –VS 4 5 NC AD795 NC = NO CONNECT 00845-001 Data Sheet Low Power, Low Noise
Precision FET Op Amp
AD795 Figure 1. 8-Lead SOIC (R) Package APPLICATIONS
Low noise photodiode preamps
CT scanners
Precision l-to-V converters GENERAL DESCRIPTION
The AD795 is a low noise, precision, FET input operational
amplifier. It offers both the low voltage noise and low offset
drift of a bipolar input op amp and the very low bias current of a
FET-input device. The 1014 Ω common-mode impedance
insures that input bias current is essentially independent of
common-mode voltage and supply voltage variations.
The AD795 has both excellent dc performance and a guaranteed …

Low Power, Low Noise
Precision FET Op Amp
AD795
CONNECTION DIAGRAM Low power replacement for Burr-Brown
OPA111, OPA121 op amps
Low noise
3.3 μV p-p maximum, 0.1 Hz to 10 Hz
11 nV/√Hz maximum at 10 kHz
0.6 fA/√Hz at 1 kHz
High dc accuracy
500 μV maximum offset voltage
10 μV/°C maximum drift
2 pA maximum input bias current
Low power: 1.5 mA maximum supply current NC 1 8 NC –IN 2 7 +VS +IN 3 6 OUTPUT –VS 4 5 NC AD795 NC = NO CONNECT 00845-001 FEATURES Figure 1. 8-Lead SOIC (R) Package APPLICATIONS
Low noise photodiode preamps
CT scanners
Precision l-to-V converters GENERAL DESCRIPTION
The AD795 is a low noise, precision, FET input operational
amplifier. It offers both the low voltage noise and low offset drift
of a bipolar input op amp and the very low bias current of a FETinput device. The 1014 Ω common-mode impedance insures
that input bias current is essentially independent of commonmode voltage and supply voltage variations.
The AD795 has both excellent dc performance and a guaranteed
and tested maximum input voltage noise. It features 2 pA …