ADS7807PBG4 - 16-Bit 40kHz SAR ADC | Texas Instruments
MPN: ADS7807PBG4 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $19.5 | $19.50 |
| 10 | $17.55 | $175.50 |
| 100 | $15.2 | $1,520.00 |
| 500 | $13.4 | $6,700.00 |
| 1,000 | $11.85 | $11,850.00 |
ADS7807PBG4 Overview
A successive-approximation-register ADC is a type of data converter that performs a binary search through successive bit trials to resolve the input voltage in N clock cycles for N bits of resolution. SAR ADCs sit within the broader data-converter hierarchy of Nyquist-rate sampling ADCs, distinct from sigma-delta and pipeline architectures. They are prized for low latency, single-shot precision, and simplicity, making them the workhorse choice for industrial control loops, sensor digitisation, and instrumentation front ends.
Key features of the ADS7807PBG4 include bipolar input ranges of ±5 V and 0 V to +4 V (plus 0 V to +5 V depending on configuration) without external signal conditioning, an integrated sample-and-hold amplifier, and flexible serial (SPI-compatible) or parallel data interface. The 25 µs maximum acquisition-and-conversion cycle keeps loop delays minimal, while external reference support lets designers trade noise, scale, and temperature drift against cost.
The ADS7807PBG4 uses a charge-redistribution DAC array with a custom CMOS comparator and laser-trimmed resistors to achieve 16-bit linearity without missing codes across the full operating temperature range. Its input stage accepts single-ended bipolar signals through internal level-shifting, and the digital interface provides straight binary or two's-complement output coding for direct micro-controller or DSP hand-off.
Typical applications include industrial process control, multi-channel data-acquisition systems, portable instrumentation, weigh scales, and battery-powered sensor digitisation. The low power dissipation makes it ideal for remote or handheld equipment.
Designers should provide adequate input bandwidth, a low-impedance reference with a 10 µF bypass capacitor, and short analog-trace routing to preserve 86 dB SINAD. Do not exceed the absolute maximum ratings; for bipolar inputs add external clamping to keep transients within ±25 V.
This page consolidates distributor pricing, drop-in alternatives, and design guidance that goes beyond the manufacturer datasheet to accelerate your evaluation and sourcing decisions.
Drop-in alternatives for ADS7807PBG4 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ADS7807PBG4 (same form factor and footprint) — differing in Package, Data Interface, Sampling Rate, Supply Voltage, Input Voltage Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS7806PG4
✅ Drop-In✓ In Stock
$13.2 / Unit
View Datasheet →ADS7806UG4
✅ Drop-In✓ In Stock
$9.85 / Unit
View Datasheet →ADS7805PB
✅ Drop-In✓ In Stock
$10.95 / Unit
View Datasheet →ADS7805PG4
✅ Drop-In✓ In Stock
$17.9 / Unit
View Datasheet →ADS7804PB
✅ Drop-In📋 Reference alternative (not in catalog)
ADS7807PBG4 Maximum Ratings & Electrical Characteristics
| Number of Bits | 16 |
| Sampling Rate | 40 kSPS |
| Number of Inputs | 1 |
| Input Type | Single-Ended |
| Data Interface | Serial (SPI), Parallel |
| Architecture | SAR (Successive Approximation) |
| Configuration | S/H-ADC |
| Ratio S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Reference Type | External |
| Supply Voltage | 5 V (single supply) |
| Power Dissipation (max) | 35 mW |
| Power-Down Mode Current | 50 µW |
| Acquisition + Conversion Time (max) | 25 µs |
| INL (max) | ±1.5 LSB |
| DNL | 16 bits, no missing codes |
| SINAD (min, 1 kHz input) | 86 dB |
| Input Range | ±5 V and 0 to +4 V |
| Operating Temperature | -40 °C to +85 °C |
| Package | 28-DIP (0.300 inch, 7.62 mm) |
| Packaging | Tube |
| RoHS Status | Compliant |
ADS7807PBG4 Pin Configuration
| Pin 1 | AIN — Analog input |
| Pin 2 | REF — External reference input |
| Pin 3 | AGND — Analog ground |
| Pin 4 | VREF — Reference voltage decoupling |
| Pin 5 | VDD — +5 V analog supply |
| Pin 6 | DGND — Digital ground |
| Pin 7 | CS/RD — Chip select / Read strobe |
| Pin 8 | RC — Reference capacitor |
| Pin 9 | PAR/SER — Parallel/Serial mode select |
| Pin 10 | HBEN — High byte enable (parallel mode) |
| Pin 11 | SCLK — Serial clock |
| Pin 12 | SDATA — Serial data output |
| Pin 13 | TAG — Tag input |
| Pin 14 | D0 — Parallel data bit 0 (LSB) |
| Pin 15 | D1 — Parallel data bit 1 |
| Pin 16 | D2 — Parallel data bit 2 |
| Pin 17 | D3 — Parallel data bit 3 |
| Pin 18 | D4 — Parallel data bit 4 |
| Pin 19 | D5 — Parallel data bit 5 |
| Pin 20 | D6 — Parallel data bit 6 |
| Pin 21 | D7 — Parallel data bit 7 |
| Pin 22 | D8 — Parallel data bit 8 |
| Pin 23 | D9 — Parallel data bit 9 |
| Pin 24 | D10 — Parallel data bit 10 |
| Pin 25 | D11 — Parallel data bit 11 |
| Pin 26 | D12 — Parallel data bit 12 |
| Pin 27 | D13 — Parallel data bit 13 |
| Pin 28 | D14 — Parallel data bit 14 (MSB-1) |
Typical Applications
ADS7807PBG4 is suitable for 6 applications: Industrial Process Control Loops, Portable Battery-Powered Instrumentation, Multi-Channel Data Acquisition Systems, Weigh Scales and Load-Cell Digitisation, Temperature and Pressure Sensor Digitisation, Audio and Vibration Measurement Front Ends.
Industrial Process Control Loops
The ADS7807PBG4 suits industrial process-control loops requiring low-latency, single-shot 16-bit conversions. Its 40 kSPS throughput and 25 µs acquisition-plus-conversion cycle allow control loops running at 1 kHz update rates without sigma-delta filter settling. The ±5 V bipolar input accepts transducer outputs directly, eliminating external signal conditioning. The 28-DIP package remains through-hole-friendly for industrial backplanes where vibration tolerance matters. Pair it with a precision 5 V reference such as the REF02GPZ5 and a 10 µF bypass to maintain 86 dB SINAD across noisy factory environments.
Recommended
Portable Battery-Powered Instrumentation
The ADS7807PBG4's 35 mW active power and 50 µW power-down mode make it ideal for battery-powered handheld instruments such as multimeters, portable data loggers, and field calibrators. Designers can duty-cycle conversions with the power-down pin to extend battery life to weeks or months. The single +5 V supply allows direct operation from a USB or 4-cell NiMH stack with a boost regulator. The 28-DIP package supports through-hole PCB assembly common in ruggedised handheld enclosures. Its 86 dB SINAD preserves measurement integrity needed for laboratory-grade readings.
Recommended
Multi-Channel Data Acquisition Systems
The ADS7807PBG4 pairs naturally with external analog multiplexers in multi-channel data-acquisition cards where 16-bit resolution and low-latency conversion are required per channel. The 40 kSPS throughput allows sequencing through 8-16 channels at 2.5-5 kHz per channel, sufficient for vibration monitoring and sensor array readouts. The serial SPI-compatible output reduces opto-isolation channel count compared with parallel-output ADCs. Combined with a precision 5 V reference, it delivers 86 dB SINAD suitable for industrial-grade measurements. The 28-DIP form factor is well-suited to legacy DAQ backplanes.
Recommended
Weigh Scales and Load-Cell Digitisation
Weigh scales and load-cell readouts benefit from the ADS7807PBG4's ±1.5 LSB INL and 16-bit no-missing-codes performance, which preserves calibration linearity across the full sensor range. Its differential bipolar input stage accepts strain-gauge bridges directly when paired with an external instrumentation amplifier. The 40 kSPS throughput supports settling-time averaging for stable weight readings while the 86 dB SINAD supports high-resolution force and balance measurements. The 28-DIP package remains popular in OEM weighing equipment where through-hole PCB assembly reduces manufacturing cost.
Recommended
Temperature and Pressure Sensor Digitisation
The ADS7807PBG4 digitises outputs from precision temperature and pressure sensors in industrial instrumentation, accepting 0-4 V unipolar or ±5 V bipolar transducer signals directly. Its 16-bit resolution and 86 dB SINAD preserve the dynamic range of sensors with sub-millivolt-per-unit sensitivities. The 25 µs acquisition-and-conversion cycle supports closed-loop regulation at sub-10 ms update intervals. With single +5 V supply operation, it integrates cleanly into industrial sensor modules. The 28-DIP package supports through-hole mounting for harsh-environment transducer housings.
Recommended
Audio and Vibration Measurement Front Ends
The ADS7807PBG4 functions as a low-latency digitiser in audio-bandwidth vibration analysis where the single-shot SAR conversion avoids the digital-filter settling delay of sigma-delta alternatives. Its 40 kSPS sampling rate supports audio analysis up to ~18 kHz bandwidth, suitable for machinery-health monitoring. Combined with a 5 V precision reference, it provides 86 dB SINAD enabling spectral analysis of vibration signatures. The 28-DIP package remains widely supported by vibration-data-acquisition backplanes. Designers may also choose the ADS7805 series for higher-bandwidth vibration analysis up to 45 kHz.
Recommended
Recommended Products Summary
Engineering reference data for ADS7807PBG4 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS7806PG4 | ADS7806UG4 | ADS7805PB | ADS7805PG4 | ADS7804PB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-DIP (0.300 inch) | 28-DIP (0.300 inch) - same | 28-DIP (0.300 inch) - same | 28-DIP (0.300 inch) - same | 28-DIP (0.300 inch) - same | 28-DIP (0.300 inch) - same |
| Resolution | 16 bit | 12 bit | 12 bit | 16 bit | 16 bit | 12 bit |
| Sampling Rate | 40 kSPS | 40 kSPS | 40 kSPS | 100 kSPS | 100 kSPS | 100 kSPS |
| INL (max) | ±1.5 LSB | ±0.5 LSB | ±0.5 LSB | ±2 LSB | ±2 LSB | ±1 LSB |
| SINAD (min, 1 kHz) | 86 dB | 72 dB | 72 dB | 86 dB | 86 dB | 70 dB |
| Power Dissipation (max) | 35 mW | 35 mW | 35 mW | 50 mW | 50 mW | 50 mW |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- True bipolar ±5 V input without external conditioning (vs ADS7806PG4)
- Higher precision than 12-bit family predecessors (vs ADS7804PB)
- Higher throughput than ADS7807 base but compatible pinout (vs ADS7805PB)
Design Notes
Power the ADS7807PBG4 from a clean +5 V rail with a 10 µF tantalum and 0.1 µF ceramic bypass capacitor placed within 5 mm of the VDD pin. The device draws 35 mW active and 50 µW in power-down; duty-cycling with the CS/RD pin can extend battery life by 100x in portable applications. Use star-ground topology to prevent digital return currents from corrupting the analog ground reference.
Route analog input traces as short, guarded differential pairs with AGND on both sides. Keep digital lines (CS, SCLK, PAR/SER, data bus) away from AIN and REF traces by at least 5 mm. The 28-DIP package supports a socketed through-hole assembly; place a clean analog ground plane on the component side and stitch with vias around the AIN/REF/AGND pins. Decouple REF with a 10 µF tantalum in parallel with a 0.01 µF ceramic.
For bipolar ±5 V inputs, drive AIN from a low-impedance source (<100 Ω) to preserve 86 dB SINAD. Add an external RC anti-alias filter with fc ≈ 200 kHz before the input when sampling at 40 kSPS. The integrated S/H settles within 25 µs acquisition time; longer acquisitions do not improve accuracy but shorter may exceed INL limits. Match the external reference drive impedance to the datasheet's 5 mA load specification.
Do not exceed the absolute maximum analog input voltage of ±25 V (transient). The bipolar input mode requires tying HBEN/PAR-SER configuration bits correctly before power-up. Avoid switching the PAR/SER pin during conversion - this corrupts the conversion result. When migrating from the ADS7806/7804 family, verify the input range strapping matches your design's bipolar/unipolar requirement; the ADS7807 supports both via pin configuration.
Compliance Information
RoHS compliant per TI product page. Not AEC-Q100 qualified - this part is industrial/consumer-grade. Part status is obsolete per TI; lead-free packaging is confirmed via DigiKey part detail page. Halogen-free status not stated in available data.
