Features: Low Noise: 0.2 mV p-p 0.1 Hz to 10 Hz
Low Gain TC: 5 ppm max (G = 1)
Low Nonlinearity: 0.001% max (G = 1 to 200)
High CMRR: 130 dB min (G = 500 to 1000)
Low Input Offset Voltage: 25 mV, max
Low Input Offset Voltage Drift: 0.25 mV/8C max
Gain Bandwidth Product: 25 MHz
Pin Programmable Gains of 1, 100, 200, 500, 1000
No External Components Required
Internally CompensatedPinout
SpecificationsSupply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18 V
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . 420 mW
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±VS
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . ±VS
Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite
Storage Temperature Range . . . . . . . . . . . . 65°C to +150°C
Operating Temperature Range
AD624A/B/C . . . . . . . . . . . . . . . . . . . . . . . 25°C to +85°C
AD624S . . . . . . . . . . . . . . . . . . . . . . . . . . . 55°C to +125°C
Lead Temperature (Soldering, 60 secs) . . . . . . . . . . . .+300°C
| Single/Dual Supply |
Dual |
| Voltage Supply (Vmax) |
±18V |
| Gain Setting Method |
Pin |
| Gain Range (min to max) |
1000 |
| Bandwidth G=10 (kHz typ) |
400kHz |
| CMRR (dB) |
90dB |
| Vnoise RTI 1-10 Hz Vp-p |
0.3V p-p |
| Temperature Range |
-55 to +125 |
| Gain Error (%) max |
±0.05% |
| Supply Current |
5mA |
| Vosi (V) |
200V |
DescriptionThe AD624 is a high precision, low noise, instrumentation amplifier designed primarily for use with low level transducers, including load cells, strain gauges and pressure transducers. An outstanding combination of low noise, high gain accuracy, low gain temperature coefficient and high linearity make the AD624 ideal for use in high resolution data acquisition systems.
The AD624C has an input offset voltage drift of less than 0.25 µV/°C, output offset voltage drift of less than 10 µV/°C, CMRR above 80 dB at unity gain (130 dB at G = 500) and a maximum nonlinearity of 0.001% at G = 1. In addition to these outstanding dc specifications, the AD624 exhibits superior ac
performance as well. A 25MHz gain bandwidth product, 5 V/µs slew rate and 15 µs settling time permit the use of the AD624 in high speed data acquisition applications. The AD624 does not need any external components for pretrimmed gains of 1, 100, 200, 500 and 1000. Additional gains such as 250 and 333 can be programmed within one percent accuracy with external jumpers. A single external resistor can also be used to set the 624's gain to any value in the range of 1 to 10,000.
AD624 Data Sheet
