TLV2888IDGKR - 36V 14MHz Zero-Drift Dual Op Amp | TI
MPN: TLV2888IDGKR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.89 | $1.89 |
| 10 | $1.66 | $16.60 |
| 100 | $1.38 | $138.00 |
| 500 | $1.21 | $605.00 |
| 1,000 | $1.08 | $1,080.00 |
Drop-in alternatives for TLV2888IDGKR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLV2888DGKR
✅ Drop-In📋 Reference alternative (not in catalog)
OPA2189IDGKR
✅ Drop-In📋 Reference alternative (not in catalog)
OPA2388IDGKR
✅ Drop-In📋 Reference alternative (not in catalog)
TLV2172IDGKR
✅ Drop-In📋 Reference alternative (not in catalog)
ADA4522-2ARMZ
✅ Drop-In📋 Reference alternative (not in catalog)
AD8629ARMZ
✅ Drop-In📋 Reference alternative (not in catalog)
TLV2888IDGKR Maximum Ratings & Electrical Characteristics
| Amplifier Type | Zero-drift, CMOS precision operational amplifier |
| Number of Circuits | 2 (Dual) |
| Gain Bandwidth Product | 14 MHz |
| Slew Rate | 40 V/µs |
| Input Offset Voltage | 3 µV typical |
| Input Offset Voltage Drift | 0.01 µV/°C typical; 0.05 µV/°C maximum |
| Voltage Noise Density | 7.5 nV/√Hz |
| PSRR | 150 dB |
| CMRR | 150 dB |
| Input Common-Mode Voltage Range | Input to negative rail; full range [DATA_NEEDED: Input Common-Mode Voltage Range] |
| Output Type | Rail-to-rail |
| Supply Voltage Range | [DATA_NEEDED: Supply Voltage Range] |
| Output Current per Channel | [DATA_NEEDED: Output Current per Channel] |
| Package | 8-VSSOP (DGK) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | [DATA_NEEDED: Operating Temperature Range] |
| Mux-Friendly | Yes |
TLV2888IDGKR Pin Configuration
| Pin 1 | OUTA — Output of amplifier A |
| Pin 2 | -INA — Inverting input of amplifier A |
| Pin 3 | +INA — Non-inverting input of amplifier A |
| Pin 4 | V- — Negative supply / ground |
| Pin 5 | +INB — Non-inverting input of amplifier B |
| Pin 6 | -INB — Inverting input of amplifier B |
| Pin 7 | OUTB — Output of amplifier B |
| Pin 8 | V+ — Positive supply |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TLV2888IDGKR is suitable for 6 applications: Precision Multiplexed Data Acquisition, High-Side Current Sensing in 36V Industrial Systems, Precision Sensor Conditioning for Bridge Sensors, Servo and Valve Control Loops, Battery-Operated Precision Instrumentation, Active Anti-Aliasing Filter and ADC Driver.
Precision Multiplexed Data Acquisition
The TLV2888IDGKR’s mux-friendly architecture is designed for multiplexed data-acquisition front ends where input transients from channel switching can corrupt readings. Its 14MHz GBW and 40V/µs slew rate allow fast settling after each mux transition, while the 3µV offset and 0.01µV/°C drift eliminate the need for a separate chopper stage. In a typical system, the TLV2888 buffers sensor signals before an ADC such as ADS1115IDGSR, and the 150dB CMRR rejects common-mode interference. The 36V supply range supports industrial sensor buses and PLC module inputs, making it a strong choice for high-channel-count data acquisition cards.
Recommended
High-Side Current Sensing in 36V Industrial Systems
For high-side current sensing, the TLV2888 can measure across a shunt resistor while the load-side common-mode voltage stays near the positive rail. The input-to-negative-rail range and 150dB CMRR preserve accuracy even when the shunt is referenced to 24V or 36V. With 14MHz bandwidth, it can amplify fast motor-phase current transients and PWM ripple without severe roll-off. The amplifier’s low offset contributes minimal shunt-voltage error, enabling precision with a smaller shunt. Pair it with a dedicated current monitor such as INA226AIDGSR when a digital output is preferred.
Recommended
Precision Sensor Conditioning for Bridge Sensors
Low-offset and low-drift properties make the TLV2888 ideal for conditioning strain-gauge, load-cell, and RTD bridge outputs. The 3µV offset and 0.01µV/°C drift introduce negligible error compared to the sensor offset, while the 14MHz bandwidth is much faster than required for DC bridge amplifiers, leaving headroom for active filtering. The 150dB CMRR is valuable in bridge circuits where the sensor common-mode voltage can shift with excitation. A typical circuit uses two TLV2888 stages to provide instrumentation-like performance; because the op amp includes rail-to-rail output, it can drive ADCs directly.
Recommended
Servo and Valve Control Loops
In servo and proportional-valve control, the TLV2888 provides high loop bandwidth and DC accuracy. Its 14MHz GBW and 40V/µs slew rate allow fast response to position or pressure commands, while zero-drift offset prevents steady-state errors at the summing junction. The 36V supply range lets it operate from standard industrial supplies without an additional regulator. The mux-friendly input also supports dual-channel PID loops sharing one amplifier block. For driving the final power stage, use a separate gate driver; the TLV2888 is best at the signal-conditioning and error-amplifier position.
Recommended
Battery-Operated Precision Instrumentation
Although the TLV2888 is not the lowest-power zero-drift option, its 36V, 14MHz performance is valuable in portable industrial instruments that must operate from a 24V battery bus. The wide supply range reduces the need for dc-dc converters, eliminating switching noise near the sensing front end. Low offset and drift preserve accuracy for pH probes, thermocouple linearization, and current-loop transmitters. In a loop-powered transmitter, the TLV2888 can run directly from the 24V loop supply, while its rail-to-rail output sets the 4-20mA circuit drive level. Use a precision reference such as REF3030AIDBZR for the ADC.
Recommended
Active Anti-Aliasing Filter and ADC Driver
The TLV2888 can be used as an active anti-aliasing filter before a precision ADC. Its 14MHz GBW is sufficient to realize a 1MHz or higher second-order low-pass filter while leaving loop gain for flatness, and the 40V/µs slew rate prevents slew-induced distortion on large-amplitude inputs. The low 3µV offset means no dc offset correction is needed after signal conditioning. Mux-friendly input behavior is useful when multiple analog channels share one filter stage. It drives ADS1115IDGSR or ADS62C17IRGCR with low output impedance, but check stability with capacitive loads such as ADC input capacitors.
Recommended
Recommended Products Summary
Engineering reference data for TLV2888IDGKR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLV2888DGKR | OPA2189IDGKR | ADA4522-2ARMZ | AD8629ARMZ |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices | Analog Devices |
| Package | 8-VSSOP (DGK) | 8-VSSOP (DGK) | 8-VSSOP (DGK) | 8-MSOP (VSSOP-8 compatible) | 8-MSOP (VSSOP-8 compatible) |
| Number of Channels | 2 | 2 | 2 | 2 | 2 |
| Supply Voltage Range | Up to 36V | Up to 36V | 4.5V to 36V | 4.5V to 30V | 2.7V to 5.5V |
| Gain Bandwidth Product | 14 MHz | 14 MHz | 14 MHz | About 2.5 MHz | About 2.5 MHz |
| Slew Rate | 40 V/µs | 40 V/µs | About 20 V/µs | About 0.8 V/µs | About 1 V/µs |
| Input Offset Voltage | 3 µV typical | 3 µV typical | About 0.4 µV | About 1.2 µV | About 1 µV |
| Input Offset Voltage Drift | 0.01 µV/°C typ | 0.01 µV/°C typ | About 0.012 µV/°C | About 6 nV/°C | About 5 nV/°C |
| Voltage Noise Density | 7.5 nV/√Hz | 7.5 nV/√Hz | About 5.2 nV/√Hz | About 5.8 nV/√Hz | About 22 nV/√Hz |
Key Differentiators
- 14MHz GBW and 40V/µs slew rate in a dual zero-drift VSSOP-8 (vs ADA4522-2ARMZ)
- 36V supply capability (vs AD8629ARMZ)
- Mux-friendly input architecture (vs OPA2189IDGKR)
- 150dB CMRR and 150dB PSRR (vs TLV2172IDGKR)
Design Notes
Place a 0.1µF ceramic capacitor close to each supply pin and a larger 1µF to 10µF bulk capacitor on the board. High PSRR of 150dB reduces the need for additional filtering, but proper decoupling prevents local oscillation. For dual-supply operation, keep the V+ and V- traces symmetric and connect the exposed thermal pad to the negative supply plane if applicable.
Keep the feedback network and input traces short to minimize parasitic capacitance and noise pickup. For high-impedance sensor inputs, use guard rings and a clean ground plane beneath the input pins. The VSSOP-8 package is small, so place input resistors and feedback resistors close to the amplifier to reduce loop area and electromagnetic susceptibility.
The TLVx888 datasheet recommends limiting input current to 10mA. If the supply cannot sink the current from an input overvoltage condition, the pin can source current into the amplifier and push the supply voltage upward. Add external series resistors or clamps on inputs that may exceed the supply rails. Also verify stability with capacitive loads, especially when driving ADC input capacitors larger than a few hundred picofarads.
VSSOP-8 has limited heat dissipation capability compared to larger packages. For continuous high output current, calculate the power dissipation using I_OUT × (V+ - V_OUT). If more than about 0.5W is dissipated, add copper pours and vias under the device to improve thermal transfer. For most precision sensing circuits at low output current, thermal rise is minimal.
Compliance Information
Compliance status was not provided in the verified web data. Refer to the TI product page or the latest datasheet for RoHS, REACH, and material declarations.
