| Number of channels (#) | 1 |
| Vs (Max) (V) | 36 |
| Vs (Min) (V) | 4.5 |
| Input offset (+/-) (Max) (uV) | 100 |
| Gain (Min) (V/V) | 1 |
| Gain (Max) (V/V) | 10000 |
| Noise at 1 kHz (Typ) (nV/rt (Hz)) | 8 |
| Features | Current Feedback, Overvoltage Protection |
| CMRR (Min) (dB) | 113 |
| Input offset drift (+/-) (Max) (uV/C) | 150 |
| Input bias current (+/-) (Max) (nA) | 8 |
| Iq (Typ) (mA) | 0.7 |
| Bandwidth at min gain (Typ) (MHz) | 1.3 |
| Gain error (+/-) (Max) (%) | 0.65 |
| Operating temperature range (C) | -55 to 125 |
| Type | Resistor |
| Output swing headroom (to negative supply) (Typ) (V) | 0.8 |
| Output swing headroom (to positive supply) (Typ) (V) | -0.9 |
| Input common mode headroom (to negative supply) (Typ) (V) | 1.7 |
| Input common mode headroom (to positive supply) (Typ) (V) | -1.4 |
| Noise at 0.1 Hz-10 Hz (Typ) (uVpp) | 0.2 |
| Gain non-linearity (+/-) (Max) (%) | 0.0055 |
- Low Offset Voltage
- Low Input Bias Current
- High CMR: 95 dB (Typical)
- Inputs Protected to ±40 V
- Wide Supply Range: ±2.25 V to ±18 V
- Low Quiescent Current: 2 mA (Typical)
- APPLICATIONS
- Bridge Amplifier
- Thermocouple Amplifier
- RTD Sensor Amplifier
- Medical Instrumentation
- Data Acquisition
- Supports Extreme Temperature Applications:
- Controlled Baseline
- One Assembly and Test Site
- One Fabrication Site
- Available in Military (–55°C to +125°C)
Temperature Range(1) - Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
(1) Custom temperature ranges available
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The INA129-EP device is a low power, general-purpose instrumentation amplifier offering excellent accuracy. The versatile 3-op amp design and small size make the device ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200 kHz at G = 100).
A single external resistor sets any gain from 1 to 10,000. The INA129-EP provides an industry-standard gain equation; the INA129-EP gain equation is compatible with the AD620.
The INA129-EP device is laser trimmed for very low offset voltage, drift, and high common-mode rejection (113 dB at G ≥ 100). It operates with power supplies as low as ±2.25 V, and quiescent current is only 750 μA–ideal for battery operated systems. Internal input protection can withstand up to ±40 V without damage.
The INA129-EP is available in a 8-Pin SOIC surface-mount package specified for the ?55°C to 125°C temperature range.