Product details

Architecture Voltage FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 GBW (Typ) (MHz) 120 BW @ Acl (MHz) 120 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 115 Vn at flatband (Typ) (nV/rtHz) 2.5 Vn at 1 kHz (Typ) (nV/rtHz) 3.2 Iq per channel (Typ) (mA) 2 Vos (offset voltage @ 25 C) (Max) (mV) 0.1 Rail-to-rail In to V-, Out Features Shutdown, C-Load Drive, Adjustable BW/IQ/IOUT Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 117 Input bias current (Max) (pA) 4000000 Offset drift (Typ) (uV/C) 0.5 Output current (Typ) (mA) 100 2nd harmonic (dBc) 144 3rd harmonic (dBc) 155 @ MHz 0.01
Architecture Voltage FB Number of channels (#) 2 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.7 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 GBW (Typ) (MHz) 120 BW @ Acl (MHz) 120 Acl, min spec gain (V/V) 1 Slew rate (Typ) (V/us) 115 Vn at flatband (Typ) (nV/rtHz) 2.5 Vn at 1 kHz (Typ) (nV/rtHz) 3.2 Iq per channel (Typ) (mA) 2 Vos (offset voltage @ 25 C) (Max) (mV) 0.1 Rail-to-rail In to V-, Out Features Shutdown, C-Load Drive, Adjustable BW/IQ/IOUT Rating Catalog Operating temperature range (C) -40 to 125 CMRR (Typ) (dB) 117 Input bias current (Max) (pA) 4000000 Offset drift (Typ) (uV/C) 0.5 Output current (Typ) (mA) 100 2nd harmonic (dBc) 144 3rd harmonic (dBc) 155 @ MHz 0.01
VSSOP (DGS) 10 9 mm² 3 x 3
  • High-Drive Mode:
    • GBW (G = 100): 120 MHz
    • Slew Rate: 115 V/µs
    • 16-Bit Settling at 4-V Step: 280 ns
    • Low Voltage Noise: 2.5 nV/√Hz at 10 kHz
    • Low Output Impedance: 1 Ω at 1 MHz
    • Offset Voltage: ±100 µV (max)
    • Offset Voltage Drift: ±3 µV/ºC (max)
    • LowQuiescent Current: 2 mA (typ)
  • Low-Power Mode:
    • GBW: 1 MHz
    • Low Quiescent Current: 270 µA (typ)
  • Power-Scalable Features:
    • Ultrafast Transition from Low-Power to High-Drive Mode: 170 ns
  • High AC and DC Precision:
    • Low Distortion: –122 dBc for HD2 and –140 dBc for HD3 at 100 kHz
    • Input Common-Mode Range Includes Negative Rail
    • Rail-to-Rail Output
    • Wide Temperature Range: Fully Specified from –40°C to +125°C
  • High-Drive Mode:
    • GBW (G = 100): 120 MHz
    • Slew Rate: 115 V/µs
    • 16-Bit Settling at 4-V Step: 280 ns
    • Low Voltage Noise: 2.5 nV/√Hz at 10 kHz
    • Low Output Impedance: 1 Ω at 1 MHz
    • Offset Voltage: ±100 µV (max)
    • Offset Voltage Drift: ±3 µV/ºC (max)
    • LowQuiescent Current: 2 mA (typ)
  • Low-Power Mode:
    • GBW: 1 MHz
    • Low Quiescent Current: 270 µA (typ)
  • Power-Scalable Features:
    • Ultrafast Transition from Low-Power to High-Drive Mode: 170 ns
  • High AC and DC Precision:
    • Low Distortion: –122 dBc for HD2 and –140 dBc for HD3 at 100 kHz
    • Input Common-Mode Range Includes Negative Rail
    • Rail-to-Rail Output
    • Wide Temperature Range: Fully Specified from –40°C to +125°C

The OPAx625 family of operational amplifiers are excellent 16-bit and 18-bit, SAR ADC drivers that are high precision with low THD and noise allow for a unique power-scalable solution. This family of devices is fully characterized and specified with a 16-bit settling time of 280 ns that enables a true 16-bit effective number of bits (ENOB). Along with a high dc precision of only 100 µV offset voltage, a wide gain-bandwidth product of 120 MHz, a low wideband noise of 2.5 nV/√Hz, this family is optimized for driving high-throughput, high-resolution SAR ADCs, such as the ADS88xx family of SAR ADCs.

The OPAx625 features two operating modes: high-drive and low-power. In the innovative low-power mode, the OPAx625 tracks the input signal allowing the OPAx625 to transition from low-power mode to high-drive mode at 16-bit ENOB within 170 ns.

The OPAx625 family is available in 6-pin SOT and 10-pin VSSOP packages and is specified for operation from –40°C to +125°C.

The OPAx625 family of operational amplifiers are excellent 16-bit and 18-bit, SAR ADC drivers that are high precision with low THD and noise allow for a unique power-scalable solution. This family of devices is fully characterized and specified with a 16-bit settling time of 280 ns that enables a true 16-bit effective number of bits (ENOB). Along with a high dc precision of only 100 µV offset voltage, a wide gain-bandwidth product of 120 MHz, a low wideband noise of 2.5 nV/√Hz, this family is optimized for driving high-throughput, high-resolution SAR ADCs, such as the ADS88xx family of SAR ADCs.

The OPAx625 features two operating modes: high-drive and low-power. In the innovative low-power mode, the OPAx625 tracks the input signal allowing the OPAx625 to transition from low-power mode to high-drive mode at 16-bit ENOB within 170 ns.

The OPAx625 family is available in 6-pin SOT and 10-pin VSSOP packages and is specified for operation from –40°C to +125°C.

Download

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

OPA625 TINA-TI Spice Model (Rev. A)

SBOM935A.ZIP (10 KB) - TINA-TI Spice Model
Simulation model

OPA625 TINA-TI Reference Design (Rev. A)

SBOM936A.TSC (340 KB) - TINA-TI Reference Design
Simulation model

OPA625 PSpice Model (Rev. B)

SBOM937B.ZIP (161 KB) - PSpice Model
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
Calculation tool

VOLT-DIVIDER-CALC — Voltage Divider Determines A Set of Resistors for a Voltage Divider

VOLT-DIVIDER-CALC quickly determines a set of resistors for a voltage divider. This KnowledgeBase Javascript utility can be used to find a set of resistors for a voltage divider to achieve the desired output voltage. This calculator can also be used to design non-inverting attentuation circuits.

(...)

Not available
Reference designs

TIPD211 — 20-bit, 1-MSPS, 4-Ch Small Form Factor Design for Test and Measurement Applications Reference Design

End equipment such as mixed signal SOC testers, memory testers, battery testers, liquid-crystal display (LCD) testers, benchtop equipment, high-density digital cards, high-density power cards, x-Ray, MRI, and so forth require multiple, fast, simultaneous sampling channels with excellent DC and AC (...)
Package Pins Download
VSSOP (DGS) 10 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos