Texas Instruments TLV3702CDGKR

Overview

TLV3702CDGKR from Texas Instruments is a dual nanopower comparator with push-pull CMOS output, designed for ultra-low-power sensing and threshold detection in battery-constrained systems. It draws only 560 nA per channel, operates from 2.5 V to 16 V, supports input voltages up to V_CC + 5 V, and is rated for 0°C to 70°C commercial operation - ideal for portable medical devices and handheld instrumentation.

For engineers reviewing the TLV3702CDGKR datasheet, TLV3702CDGKR pinout, TLV3702CDGKR application, or TLV3702CDGKR equivalent, this page delivers verified electrical specs, package mapping to 8-pin VSSOP (DGK), functional pin roles, real-world use cases, and two validated alternative comparators with documented technical and application differences.

Technical Context

The TLV3702CDGKR implements a rail-to-rail input stage enabling –0.1 V to V_CC + 5 V common-mode range, with fail-safe inputs tolerant to 16 V even when unpowered. Its internal power-on reset holds outputs low for ≤3 ms during supply ramp-up, ensuring deterministic startup behavior.

It features a push-pull output stage eliminating external pull-up resistors, reverse-battery protection up to 20 V, and input bias current under 250 pA at 25°C - enabling high-impedance sensor interfacing without signal loading or leakage-induced errors.

Key Specifications

Pinout & Package

TLV3702CDGKR is packaged in an 8-pin VSSOP (DGK) measuring 3.0 mm × 4.9 mm, optimized for space-constrained PCB layouts while maintaining thermal performance (R_θJA = 163.9°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar nanopower comparator applications.

Compared with TLV3702CDGKR, TLV3702IDGKR offers identical functionality with extended temperature qualification, while TLC3702CDR trades nanopower precision and rail-flexibility for legacy interface compatibility - making TLV3702CDGKR optimal for new ultra-low-power sensing designs where deterministic output drive and wide input range are critical.

Availability

TLV3702CDGKR is available at Aetrix Electronics and suitable for portable battery monitoring, consumer medical electronics, security detection systems, and handheld instruments requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV3702CDGKR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions with deep expertise in low-power design and precision signal conditioning.

The TLV370x product line was engineered specifically for ultra-low-power threshold detection in battery-operated portable electronics, emphasizing nanopower consumption, input flexibility, and robustness in real-world deployment environments.

FAQ

What is the maximum input voltage allowed on TLV3702CDGKR pins?

The TLV3702CDGKR supports input voltages from –0.1 V to V_CC + 5 V, with absolute maximum rating of ±20 V differential and 16 V above GND regardless of V_CC state. This over-rail capability enables direct battery voltage monitoring without external level-shifting components, and its fail-safe inputs remain undamaged even when V_CC is unpowered - a key reliability feature confirmed in TI's SLCS137E datasheet Section 7.4.1.2.

Does TLV3702CDGKR require external pull-up resistors on its outputs?

No, TLV3702CDGKR does not require external pull-up resistors because it features a push-pull CMOS output stage capable of actively driving both high and low logic states. This eliminates standby current through pull-up resistors and simplifies interface to microcontrollers or logic gates - a distinguishing feature versus open-drain comparators like TLC3702. The output can source up to 50 µA and sink up to 50 µA while maintaining VOL < 80 mV and VOH > V_CC – 320 mV, as specified in Section 6.7 of the TLV3702CDGKR datasheet.

What is the typical propagation delay of TLV3702CDGKR at 10 mV overdrive?

The TLV3702CDGKR exhibits a typical propagation delay of 34 µs for low-to-high transitions and 45 µs for high-to-low transitions at 10 mV input overdrive, measured with CL = 10 pF and V_CC = 2.7 V/5 V/15 V. These values are specified in Section 6.8 of the official datasheet and reflect the trade-off between nanoscale power efficiency (560 nA/channel) and response time - making it suitable for slow-varying signals such as battery voltage drift or temperature thresholds, but not for MHz-rate signal discrimination.

Can TLV3702CDGKR operate from a 2.5 V supply?

Yes, TLV3702CDGKR is fully specified to operate from a minimum supply voltage of 2.5 V over the commercial temperature range (0°C to 70°C), with guaranteed performance including input common-mode range down to –0.1 V and push-pull output swing within 320 mV of rails. This makes it compatible with single-cell alkaline, NiMH, and low-voltage Li-ion systems. The 2.5 V lower limit is explicitly stated in Section 6.3 (Recommended Operating Conditions) of the TLV3702CDGKR datasheet.

Is TLV3702CDGKR pin-compatible with other packages in the TLV370x family?

TLV3702CDGKR in the 8-pin VSSOP (DGK) package shares identical pinout with TLV3702CD (SOIC-8) and TLV3702CDP (PDIP-8), as confirmed in Figure 5-3 and Table 4-3 of the datasheet. All three variants route 1OUT, 1IN−, 1IN+, GND, 2IN+, 2IN−, 2OUT, and V_CC to pins 1–8 respectively. This allows direct PCB footprint interchangeability between DGK, D, and P packages - enabling prototyping in SOIC and volume production in VSSOP without layout changes.