Features: Micropower, 85 A Max Supply Current
Wide Power Supply Range (+2.2 V to ±18 V)
Easy to Use
Gain Set with One External Resistor
Gain Range 5 (No Resistor) to 1,000
Higher Performance than Discrete Designs
Rail-to-Rail Output Swing
High Accuracy DC Performance
0.10% Gain Accuracy (G = 5) (AD627A)
10 ppm Gain Drift (G = 5)
125 V Max Input Offset Voltage (AD627B)
200 V Max Input Offset Voltage (AD627A)
1 V/8C Max Input Offset Voltage Drift (AD627B)
3 V/8C Max Input Offset Voltage Drift (AD627A)
10 nA Max Input Bias Current
Noise: 38 nV/Hz</a>RTI Noise @ 1 kHz (G = 100)
Excellent AC Specifications
77 dB Min CMRR (G = 5) (AD627A)
83 dB Min CMRR (G = 5) (AD627B)
80 kHz Bandwidth (G = 5)
135 s Settling Time to 0.01% (G = 5, 5 V Step)
Application-4 mA-to-20 mA Loop Powered Applications
-Low Power Medical Instrumentation-ECG, EEG
-Transducer Interfacing
-Thermocouple Amplifiers
-Industrial Process Controls
-Low Power Data Acquisition
-Portable Battery Powered InstrumentsPinout
Specifications
| Single/Dual Supply |
Single/Dual |
| Voltage Supply (Vmax) |
±18V |
| Gain Setting Method |
Resistor |
| Gain Range (min to max) |
995 |
| Bandwidth G=10 (kHz typ) |
30kHz |
| CMRR (dB) |
77dB |
| Vnoise RTI 1-10 Hz Vp-p |
1.2V p-p |
| Temperature Range |
-40 to +85 |
| Gain Error (%) max |
+0.35% |
| Supply Current |
0.06mA |
| Package |
DIP,SOIC |
| Vosi (V) |
50V |
DescriptionThe AD627 is an integrated, micropower instrumentation amplifier that delivers rail-to-rail output swing on single and dual (+2.2 V to ±18 V) supplies. The AD627 provides excellent ac and dc
The AD627 is an integrated, micropower, instrumentation amplifier that delivers rail-to-rail output swing on single and dual (+2.2 V to ±18 V) supplies. The AD627 provides the user with excellent ac and dc specifications while operating at only 85 µA max.
The AD627 offers superior user flexibility by allowing the user to set the gain of the device with a single external resistor, and by conforming to the 8-lead industry standard pinout configura-tion. With no external resistor, the AD627 is configured for a gain of 5. With an external resistor, it can be programmed for gains of up to 1000.
Wide supply voltage range (+2.2 V to ±18 V), and micropowercurrent consumption make the AD627 a perfect fit for a wide range of applications. Single supply operation, low power con-sumption and rail-to-rail output swing make the AD627 ideal for battery powered applications. Its rail-to-rail output stage
maximizes dynamic range when operating from low supply voltages. Dual supply operation (±15 V) and low power con-sumption make the AD627 ideal for industrial applications,including 4 mA-to-20 mA loop-powered systems.
The AD627 does not compromise performance, unlike other micropower instrumentation amplifiers. Low voltage offset,offset drift, gain error, and gain drift keep dc errors to a mini-mum in the users system. The AD627 also holds errors over frequency to a minimum by providing excellent CMRR over frequency. Line noise, as well as line harmonics, will be rejected, since the CMRR remains high up to 200 Hz.The AD627 provides superior performance, uses less circuit board area and does it for a lower cost than micropower discrete
designs.
AD627 Data Sheet
