TLV2464CD - Quad 6.4MHz RRIO Op Amp, 6V, SOIC-14 | Texas Instruments
料号： TLV2464CD ✓ 量产中TLV2464CD 概述
An operational amplifier is an analog building block that amplifies the difference between two input voltages. A rail-to-rail input/output amplifier is a specific class whose input common-mode range and output swing extend to the supply rails, so the signal can be processed without clipping even when it approaches the limits of the supply. TLV2464 belongs to TI's family of low-power rail-to-rail input/output operational amplifiers, and the quad configuration integrates four amplifiers in one package, reducing board area and per-channel cost in multi-channel designs.
Key features include 6.4 MHz unity-gain bandwidth for a wide closed-loop bandwidth at moderate gains, 1.6 V/µs slew rate for full-scale step response, rail-to-rail inputs that extend beyond the supply rails for maximum dynamic range in low-voltage systems, and rail-to-rail outputs that swing close to both rails. The low-power CMOS design targets portable, battery-powered instrumentation where supply current matters as much as bandwidth.
Technically, the device pairs rail-to-rail input stages with a CMOS output stage capable of driving capacitive and resistive loads close to the supply rails. Because the amplifiers are specified from 2.7 V up to 6 V, the same part covers 3 V and 5 V systems. With a 6.4 MHz gain-bandwidth product, closed-loop gain of 10 still yields roughly 640 kHz of usable bandwidth, while the 1.6 V/µs slew rate sets the large-signal limit on fast edges.
Typical applications include low-cost data acquisition and sensor signal conditioning, portable medical and instrumentation front ends, audio and communication line-level stages, active filtering, and battery-powered portable equipment where four channels are needed on a single board.
When designing with the TLV2464CD, keep the input common-mode voltage inside the rated range, use decoupling capacitors close to the supply pins, and confirm that the load impedance and capacitive loading stay within the stability envelope described in the manufacturer datasheet. Driving heavy capacitive loads directly at high gain can require an isolation resistor.
This page consolidates the manufacturer device description, distributor categorization, and cross-reference findings into one engineering view, adding practical design notes, pin-level guidance, and a parameter-by-parameter comparison that the raw datasheet pages do not present side by side.
直接替换替代料： TLV2464CD ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TLV2464CD （相同外形与封装尺寸） ——差异在于 Package, Amplifier Type, Gain-Bandwidth Product, Input Common-Mode Range, Operating Temperature Range.
TLV2464ID
✅ 直接替换联系询价
查看数据手册 →TLV2464AIDR
✅ 直接替换📋 参考替代料（不在目录中）
TLV2464CDG4
✅ 直接替换📋 参考替代料（不在目录中）
MCP616-I/SN
✅ 直接替换📋 参考替代料（不在目录中）
MCP608-I/SN
✅ 直接替换联系询价
查看数据手册 →TLV2464CD 最大额定值与电气特性
| Number of Channels | 4 |
| Amplifier Type | Quad, general purpose, rail-to-rail input/output (RRIO) |
| Supply Voltage Range | 2.7 V to 6 V (+/-1.35 V to +/-3 V) |
| Gain Bandwidth Product | 6.4 MHz |
| Slew Rate | 1.6 V/us |
| Input Offset Voltage (max) | 2000 uV |
| Input Common-Mode Range | Rail-to-rail (extends beyond the supply rails) |
| Output Swing | Rail-to-rail output |
| Process Technology | CMOS |
| 封装 | SOIC-14 (D), 0.154 in (3.90 mm) width |
| 引脚数 | 14 |
| 安装类型 | Surface mount |
| 工作温度范围 | 0 C to +70 C |
| 分类 | Instrumentation, Op Amps, Buffer Amps |
| Unity Gain Bandwidth | 6.4 MHz |
TLV2464CD 引脚配置
| 引脚 1 | OUTA — Amplifier A output |
| 引脚 2 | IN-A- — Amplifier A inverting input |
| 引脚 3 | IN-A+ — Amplifier A non-inverting input |
| 引脚 4 | V+ — Positive supply voltage |
| 引脚 5 | IN-B+ — Amplifier B non-inverting input |
| 引脚 6 | IN-B- — Amplifier B inverting input |
| 引脚 7 | OUTB — Amplifier B output |
| 引脚 8 | OUTC — Amplifier C output |
| 引脚 9 | IN-C- — Amplifier C inverting input |
| 引脚 10 | IN-C+ — Amplifier C non-inverting input |
| 引脚 11 | V- — Negative supply or ground reference |
| 引脚 12 | OUTD — Amplifier D output |
| 引脚 13 | IN-D- — Amplifier D inverting input |
| 引脚 14 | IN-D+ — Amplifier D non-inverting input |
典型应用
TLV2464CD 适用于 6 应用s: Portable Sensor Signal Conditioning, Low-Cost Data Acquisition Front End, Active Filtering and Equalization, Instrumentation and Buffering, Communication Line Interface Stages, Audio and Low-Level Analog Signal Paths.
Portable Sensor Signal Conditioning
The TLV2464CD conditions low-level sensor outputs in battery-powered instruments because its rail-to-rail inputs accept signals that reach the supply rails on a 3.3 V or 5 V system, avoiding saturation at the extremes of the sensor range. With a 6.4 MHz gain-bandwidth product, four channels of gain and filtering can run at signal bandwidths up to several hundred kilohertz before closed-loop bandwidth becomes limiting. The 2.7 V minimum supply lets one part serve both 3 V and 5 V designs, and the low-power CMOS family targets portable measurement gear where every milliamp of supply current competes with battery life. Four amplifiers in one 14-pin SOIC also reduce board area in handheld meter designs where four separate packages would be costly.
推荐
Low-Cost Data Acquisition Front End
In a multi-channel data acquisition card, the TLV2464CD provides four independent amplifier channels in one 14-pin SOIC, which lowers both board area and cost per channel compared with discrete single or dual packages. The 6.4 MHz gain-bandwidth product gives roughly 640 kHz of closed-loop bandwidth at a noise gain of 10, enough to amplify sensor and transducer signals ahead of an ADC without phase margin concerns. A 1.6 V/us slew rate keeps full-scale steps clean for periodic sensor multiplexing. Because the amplifiers are rail-to-rail on both input and output, they map the full input range of the converter, which matters when the acquisition system runs on a single 5 V supply.
推荐
Active Filtering and Equalization
The TLV2464CD suits active filter and equalizer stages where a 6.4 MHz unity-gain bandwidth combined with rail-to-rail I/O keeps the signal intact across the full supply range. Building second-order sections at a noise gain of 10 still leaves roughly 640 kHz of loop bandwidth, which supports audio-band and ultrasonic transducer conditioning without sacrificing phase margin. The rail-to-rail output swings close to both rails, so the stage delivers maximum usable output swing on a 3.3 V or 5 V rail instead of clipping early. Because four channels are integrated, a stereo link or a two-stage biquad cascade fits in a single package, reducing both footprint and the number of decoupling and routing resources needed on a crowded analog board.
推荐
Instrumentation and Buffering
The TLV2464CD is a natural choice for instrumentation buffers that must present a high impedance to a source and a low impedance to the following stage. Rail-to-rail inputs let a buffer handle signals near the 0 V and 6 V limits of the supply without the input stage clipping, while the CMOS construction keeps input bias current low enough for high-impedance dividers and transducer sources. Four channels in one package make it practical to buffer four sense lines, an accelerometer output set, or the inputs of a resistive bridge simultaneously. The 0 C to +70 C grade suits laboratory and commercial instrumentation enclosures, and the 6.4 MHz bandwidth keeps buffer-induced phase shift negligible in signal paths operating well below 100 kHz.
推荐
Communication Line Interface Stages
In line-driver and receive-conditioning circuits, the TLV2464CD provides the bandwidth and slew rate to handle moderate-rate signalling while staying within a compact supply budget. The 1.6 V/us slew rate and 6.4 MHz gain-bandwidth product give headroom for gain stages ahead of comparators or line drivers, and rail-to-rail outputs swing far enough to meet downstream logic thresholds cleanly on a 3.3 V rail. Four amplifiers per package suit receive chains that condition four lines before a comparator or ADC stage. Because the part is a low-power CMOS design intended for portable equipment, it is also reasonable for battery-powered telemetry and radio-control accessories where the operator cannot afford a desktop supply budget.
推荐
Audio and Low-Level Analog Signal Paths
The TLV2464CD works well in small-signal audio and general analog paths where a wideband but economical amplifier is needed. Its 6.4 MHz gain-bandwidth product and 1.6 V/us slew rate comfortably handle audio-rate signals and their harmonics without slew-rate distortion on fast transients, while the rail-to-rail output stage drives the next stage without an external buffer on a 5 V rail. Four channels let a single package handle stereo pre-amplification plus two utility channels such as headphone driver support or a mixing stage. The part is catalogued under instrumentation, op amps, and buffer amps, reflecting its general-purpose role in low-cost consumer and semi-professional audio equipment where cost per channel drives architecture.
推荐
推荐产品汇总
工程参考数据： TLV2464CD ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TLV2464ID | TLV2464AIDR | TLV2464CDG4 | MCP616-I/SN | MCP608-I/SN |
|---|---|---|---|---|---|---|
| Package | SOIC-14 (D) | SOIC-14 (D) - same | SOIC-14 (D) - same | SOIC-14 (D) - same | SOIC-14 (D) - same | SOIC-14 (D) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Microchip Technology | Microchip Technology |
| Number of Channels / Amplifier Type | 4, Quad RRIO | 4, Quad RRIO | 4, Quad RRIO | 4, Quad RRIO | 4, Quad RRIO | 4, Quad RRIO |
| Gain Bandwidth Product | 6.4 MHz | 6.4 MHz | 6.4 MHz | 6.4 MHz | 400 kHz | Approximately 1 MHz |
| Supply Voltage Range | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V | 2.7 V to 6 V | 1.8 V to 6 V | 1.8 V to 6 V |
| Operating Temperature Range | 0 C to +70 C | -40 C to +85 C | -40 C to +85 C | 0 C to +70 C | -40 C to +125 C | -40 C to +125 C |
| Input / Output Common-Mode | Rail-to-rail input and output | Rail-to-rail input and output | Rail-to-rail input and output | Rail-to-rail input and output | Rail-to-rail input and output | Rail-to-rail input and output |
关键差异点
- Substantially higher bandwidth than the cross-brand pin-compatible alternatives （对比 MCP616-I/SN)
- Commercial-grade temperature coverage with the same footprint as the industrial sibling （对比 TLV2464ID)
- Four amplifiers in a single 14-pin SOIC instead of four separate packages （对比 MCP608-I/SN)
设计说明
Decouple the supply rails with a 0.1 uF ceramic capacitor placed close to the V+ pin (pin 4) and a second capacitor from V- (pin 11) to the ground plane, with a bulk 1 uF to 10 uF capacitor on the supply for transient support. The four amplifiers share the same pins, so a single inadequate decoupling network shows up as noise on every channel simultaneously. On a 3.3 V system the same 2.7 V to 6 V rating applies, so check that transient overshoot on the rail does not push the supply above 6 V during load steps.
Do not assume the input common-mode range can be used outside the supply rails. Although the input stage tolerates signals near the rails, the output can only swing to within the amplifier's output headroom of the supply limits. If the design expects true beyond-the-rail input operation, verify the absolute maximum input voltage and the input overvoltage behaviour in the manufacturer datasheet before wiring external sources that may go above V+ during power-down sequencing.
Driving a capacitive load directly from the output can cause instability, particularly at high closed-loop gain where the amplifier's phase margin is reduced. Use an isolation series resistor of roughly 10 ohm to 100 ohm between the amplifier output and the capacitive load, and add the recommended feedback compensation network for the load value you are using. Long PCB traces add further capacitive loading, so keep feedback routing short and connect the feedback network close to the pins.
Because a single package holds four independent amplifiers, keep the four channels physically separated where crosstalk matters. Route each channel's input pair as a tight differential pair with no shared return path beneath the input pins, and avoid running one channel's output trace directly under an adjacent channel's input pins. Use a continuous ground plane under the SOIC body as a return path for stray capacitive coupling, and place the bypass capacitor on the V+ pin on the same side of the board as the pin.
合规信息
No RoHS, REACH, halogen-free or conflict-minerals declarations were stated in the manufacturer product page or distributor listings reviewed for this part; the values are recorded as unknown rather than assumed. AEC-Q100 is recorded as not applicable because the TLV2464CD is a 0 C to +70 C commercial-grade part rather than an automotive-qualified orderable.
